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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Deep_geothermal</id>
		<title>Deep geothermal - Revision history</title>
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		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;action=history"/>
		<updated>2026-05-10T07:03:07Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=236031&amp;oldid=prev</id>
		<title>Designing Buildings at 06:23, 3 August 2022</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=236031&amp;oldid=prev"/>
				<updated>2022-08-03T06:23:48Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
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			&lt;col class='diff-content' /&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 06:23, 3 August 2022&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C. From 90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C. From 90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;= &lt;/del&gt;External links &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;=&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;External links&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.quaise.energy https://www.quaise.energy]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;* &lt;/ins&gt;[https://www.quaise.energy https://www.quaise.energy]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Designing_Buildings_Wiki &lt;/del&gt;Designing Buildings&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;] &lt;/del&gt;=&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on Designing Buildings =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Climate Emergency Design Guide.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Climate Emergency Design Guide.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=236000&amp;oldid=prev</id>
		<title>Designing Buildings at 09:52, 2 August 2022</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=236000&amp;oldid=prev"/>
				<updated>2022-08-02T09:52:20Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
			&lt;col class='diff-marker' /&gt;
			&lt;col class='diff-content' /&gt;
		&lt;tr valign='top'&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 09:52, 2 August 2022&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Deep geothermal is a process that involves extracting heat from below the earths surface at depths of between 150 and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;5000 &lt;/del&gt;metres. Shallow or standard geothermal is accepted as being at depths of less that 150 metres.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Deep geothermal is a process that involves extracting heat from below the earths surface at depths of between 150 and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;5,000 &lt;/ins&gt;metres. Shallow or standard geothermal is accepted as being at depths of less that 150 metres.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, it &lt;/del&gt;effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. It &lt;/ins&gt;effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, the maximum temperature achieved is 30°C, which gives a thermal capacity of 10 kW to &amp;amp;lt; 5 MW but can also provide cooling. These kinds of levels are useful in the provision of renewable heat sources, however do not provide the option of electricity generation.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, the maximum temperature achieved is 30°C, which gives a thermal capacity of 10 kW to &amp;amp;lt; 5 MW but can also provide cooling. These kinds of levels are useful in the provision of renewable heat sources, however do not provide the option of electricity generation.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, from &lt;/del&gt;90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;. From &lt;/ins&gt;90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= External &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Links &lt;/del&gt;=&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= External &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;links &lt;/ins&gt;=&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.quaise.energy https://www.quaise.energy]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.quaise.energy https://www.quaise.energy]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on [https://www.designingbuildings.co.uk/wiki/Designing_Buildings_Wiki Designing Buildings] =&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;= Related articles on [https://www.designingbuildings.co.uk/wiki/Designing_Buildings_Wiki Designing Buildings] =&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Climate_Emergency_Design_Guide &lt;/del&gt;Climate Emergency Design Guide&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Climate Emergency Design Guide.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Dynamic_thermal_modelling_of_closed_loop_geothermal_heat_pump_systems &lt;/del&gt;Dynamic thermal modelling of closed loop geothermal heat pump systems&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Dynamic thermal modelling of closed loop geothermal heat pump systems&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Earth-to-air_heat_exchangers &lt;/del&gt;Earth-to-air heat exchangers&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Earth-to-air heat exchangers.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Geothermal_piles &lt;/del&gt;Geothermal piles&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Geothermal piles.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Heat_pump &lt;/del&gt;Heat pump&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Heat pump.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/London_Energy_Transformation_Initiative &lt;/del&gt;London Energy Transformation Initiative&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* London Energy Transformation Initiative.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Renewable_energy &lt;/del&gt;Renewable energy&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Renewable energy.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;[https://www.designingbuildings.co.uk/wiki/Thermal_labyrinths &lt;/del&gt;Thermal labyrinths&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;]&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Thermal labyrinths.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:Projects_and_case_studies]] [[Category:Research_/_Innovation]] [[Category:Sustainability]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:Projects_and_case_studies]] [[Category:Research_/_Innovation]] [[Category:Sustainability]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235977&amp;oldid=prev</id>
		<title>Editor at 07:05, 2 August 2022</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235977&amp;oldid=prev"/>
				<updated>2022-08-02T07:05:38Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 07:05, 2 August 2022&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C, from 90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;At depths of between 150 and 5000 metres temperatures can increase to beyond 200°C, from 90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation. At depths where rock temperatures reach 500 °C water can be heated to a &amp;amp;quot;supercritical&amp;amp;quot; state which massively improves the efficiency of the process of extraction.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;= External Links =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[https://www.quaise.energy https://www.quaise.energy]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;= Related articles on [https://www.designingbuildings.co.uk/wiki/Designing_Buildings_Wiki Designing Buildings] =&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Climate_Emergency_Design_Guide Climate Emergency Design Guide].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Dynamic_thermal_modelling_of_closed_loop_geothermal_heat_pump_systems Dynamic thermal modelling of closed loop geothermal heat pump systems]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Earth-to-air_heat_exchangers Earth-to-air heat exchangers].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Geothermal_piles Geothermal piles].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Heat_pump Heat pump].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/London_Energy_Transformation_Initiative London Energy Transformation Initiative].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Renewable_energy Renewable energy].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [https://www.designingbuildings.co.uk/wiki/Thermal_labyrinths Thermal labyrinths].&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:Projects_and_case_studies]] [[Category:Research_/_Innovation]] [[Category:Sustainability]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235975&amp;oldid=prev</id>
		<title>Editor at 06:36, 2 August 2022</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235975&amp;oldid=prev"/>
				<updated>2022-08-02T06:36:28Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: white; color:black;&quot;&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 06:36, 2 August 2022&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments, it effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments, it effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, the maximum temperature achieved is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;30 degrees&lt;/del&gt;, which gives a thermal capacity of 10 kW to &amp;amp;lt; 5 MW but can also provide cooling. These kinds of levels are useful in the provision of renewable heat sources&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;. However these temperatures &lt;/del&gt;do not provide the option of electricity generation. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;At depths of between 150 and 5000 metres&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, the maximum temperature achieved is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;30°C&lt;/ins&gt;, which gives a thermal capacity of 10 kW to &amp;amp;lt; 5 MW but can also provide cooling. These kinds of levels are useful in the provision of renewable heat sources&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, however &lt;/ins&gt;do not provide the option of electricity generation.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;No permission for drilling, standard drilling range up to around 150 meters&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;At &lt;/ins&gt;depths &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;of between &lt;/ins&gt;150 &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;and 5000 metres temperatures can increase &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;beyond 200°C, from 90 °C – 200°C electrical power generation is possible whilst anything over 200°C allows for direct heat use for electrical power generation&lt;/ins&gt;. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;At depths where rock temperatures reach 500 &lt;/ins&gt;°C &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;water can be heated &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a &lt;/ins&gt;&amp;amp;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;quot&lt;/ins&gt;;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;supercritical&lt;/ins&gt;&amp;amp;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;quot&lt;/ins&gt;; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;state which massively improves the efficiency of the process of extraction.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Permission for drilling required, drilling &lt;/del&gt;depths &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp;gt;&lt;/del&gt;150 &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;meters &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;5&lt;/del&gt;.&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;000 meters&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Temperature level0 &lt;/del&gt;°C to &amp;amp;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;lt&lt;/del&gt;;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;30 °C30 °C to 200 °C&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Thermal capacities&lt;/del&gt;&amp;amp;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;lt&lt;/del&gt;;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;10 kW to &amp;amp;lt;5 MW1 MW to &amp;amp;gt;50 MW&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Electricity productionNo electricity production possibleBinary circle: 90 °C – 200 °C Direct use: &amp;amp;gt;200 °C&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;CoolingFree coolingForced cooling (adsorption, absorption)&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Heat supplyIndividual buildings 5G heating and cooling networks&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235974&amp;oldid=prev</id>
		<title>Editor at 06:26, 2 August 2022</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235974&amp;oldid=prev"/>
				<updated>2022-08-02T06:26:45Z</updated>
		
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 06:26, 2 August 2022&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Deep geothermal is a process &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;of &lt;/del&gt;extracting heat from &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;belows &lt;/del&gt;the earths surface at depths of between 150 and 5000 metres. Shallow or standard geothermal is accepted as being at depths of less that 150 metres.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Deep geothermal is a process &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;that involves &lt;/ins&gt;extracting heat from &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;below &lt;/ins&gt;the earths surface at depths of between 150 and 5000 metres. Shallow or standard geothermal is accepted as being at depths of less that 150 metres.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments, it effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments, it effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;minus;&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;temperatures below &lt;/del&gt;the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;surface are below &lt;/del&gt;30 degrees, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;this &lt;/del&gt;gives a thermal capacity of 10 kW to &amp;amp;lt;5 MW &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;and &lt;/del&gt;also &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;allows &lt;/del&gt;cooling. These kinds of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;figures &lt;/del&gt;are useful and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;it can provid a vert&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;maximum temperature achieved is &lt;/ins&gt;30 degrees, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;which &lt;/ins&gt;gives a thermal capacity of 10 kW to &amp;amp;lt; 5 MW &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;but can &lt;/ins&gt;also &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;provide &lt;/ins&gt;cooling. These kinds of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;levels &lt;/ins&gt;are useful &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;in the provision of renewable heat sources. However these temperatures do not provide the option of electricity generation. At depths of between 150 &lt;/ins&gt;and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;5000 metres&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;No permission for drilling, standard drilling range up to around 150 meters&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;No permission for drilling, standard drilling range up to around 150 meters&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235972&amp;oldid=prev</id>
		<title>Editor: Created page with &quot;Deep geothermal is a process of extracting heat from belows the earths surface at depths of between 150 and 5000 metres. Shallow or standard geothermal is accepted as being at de...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Deep_geothermal&amp;diff=235972&amp;oldid=prev"/>
				<updated>2022-08-02T06:17:52Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;Deep geothermal is a process of extracting heat from belows the earths surface at depths of between 150 and 5000 metres. Shallow or standard geothermal is accepted as being at de...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Deep geothermal is a process of extracting heat from belows the earths surface at depths of between 150 and 5000 metres. Shallow or standard geothermal is accepted as being at depths of less that 150 metres.&lt;br /&gt;
&lt;br /&gt;
The possibility of drilling deep in to the earths core beyond 150 metres only become a reality with a Boston-based MIT spin-off, Quaise energy who have developed an ultra-deep drilling technology. This repurposed technology is millimeter-wave beam technology which was originally developed to superheat plasma in fusion experiments, it effectively blasts its way through rock far below the Earth's surface that was previously not possible to drill through.&lt;br /&gt;
&lt;br /&gt;
Whilst Geothermal power is a well known accepted alternative energy source, at depths of 150 metres or less, temperatures below the surface are below 30 degrees, this gives a thermal capacity of 10 kW to &amp;amp;lt;5 MW and also allows cooling. These kinds of figures are useful and it can provid a vert&lt;br /&gt;
&lt;br /&gt;
No permission for drilling, standard drilling range up to around 150 meters&lt;br /&gt;
&lt;br /&gt;
Permission for drilling required, drilling depths &amp;amp;gt;150 meters to 5.000 meters&lt;br /&gt;
&lt;br /&gt;
Temperature level0 °C to &amp;amp;lt;30 °C30 °C to 200 °C&lt;br /&gt;
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Thermal capacities&amp;amp;lt;10 kW to &amp;amp;lt;5 MW1 MW to &amp;amp;gt;50 MW&lt;br /&gt;
&lt;br /&gt;
Electricity productionNo electricity production possibleBinary circle: 90 °C – 200 °C Direct use: &amp;amp;gt;200 °C&lt;br /&gt;
&lt;br /&gt;
CoolingFree coolingForced cooling (adsorption, absorption)&lt;br /&gt;
&lt;br /&gt;
Heat supplyIndividual buildings 5G heating and cooling networks&lt;/div&gt;</summary>
		<author><name>Editor</name></author>	</entry>

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