Variations in low carbon building performance - Revision history

Designing Buildings at 06:51, 3 December 2020

2020-12-03T06:51:31Z

← Older revision		Revision as of 06:51, 3 December 2020
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	* Zero carbon non-domestic buildings.		* Zero carbon non-domestic buildings.

−	[[Category:~~Sustainability~~]] [[Category:News]] [[Category:~~DCN_News~~]]	+	[[Category:DCN_Guidance]] [[Category:DCN_News]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:News]] [[Category:Sustainability]]

Designing Buildings at 11:31, 18 March 2018

2018-03-18T11:31:46Z

← Older revision		Revision as of 11:31, 18 March 2018
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	* Energy Savings Opportunity Scheme.		* Energy Savings Opportunity Scheme.
	* Green building.		* Green building.
		+	* Performance of exemplar buildings in use: Bridging the performance gap FB 78.
	* Retrofit.		* Retrofit.
	* Soft landings.		* Soft landings.
Line 53:		Line 54:
	* Zero carbon non-domestic buildings.		* Zero carbon non-domestic buildings.

−	[[Category:Sustainability]] [[Category:News]]	+	[[Category:Sustainability]] [[Category:News]] [[Category:DCN_News]]

Designing Buildings at 08:25, 15 April 2016

2016-04-15T08:25:53Z

← Older revision		Revision as of 08:25, 15 April 2016
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	In February 2016, the findings of an £8 million Innovate UK study were published, highlighting a significant performance gap between design and actual carbon emissions.		In February 2016, the findings of an £8 million Innovate UK study were published, highlighting a significant performance gap between design and actual carbon emissions.

−	The Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects for three years.	+	The Building Performance Evaluation (BPE) study monitored the operational performance of 50 non-domestic buildings and 76 residential projects for three years.

	* [https://www.gov.uk/government/publications/low-carbon-buildings-best-practices-and-what-to-avoid Building Performance Evaluation report on non-domestic buildings].		* [https://www.gov.uk/government/publications/low-carbon-buildings-best-practices-and-what-to-avoid Building Performance Evaluation report on non-domestic buildings].

Designing Buildings at 08:21, 15 April 2016

2016-04-15T08:21:57Z

← Older revision		Revision as of 08:21, 15 April 2016
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	* [https://www.gov.uk/government/publications/low-carbon-homes-best-strategies-and-pitfalls Building Performance Evaluation report on homes].		* [https://www.gov.uk/government/publications/low-carbon-homes-best-strategies-and-pitfalls Building Performance Evaluation report on homes].

−	It found that nearly every non-domestic building had higher carbon emissions than ~~were~~ predicted during the design phase. In some cases, total emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.	+	It found that nearly every non-domestic building had higher carbon emissions than predicted during the design phase. In some cases, total emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.

	Of the domestic buildings studied, carbon emissions were two or three times higher than had been estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.		Of the domestic buildings studied, carbon emissions were two or three times higher than had been estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.
Line 26:		Line 26:
	Recommendations from the BPE study include:		Recommendations from the BPE study include:

−	* Taking ~~thermograprhic~~ images of completed buildings to detect problems with construction details.	+	* Taking thermographic images of completed buildings to detect problems with construction details.
−	* More efficient and simpler controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.	+	* More efficient and simpler controls for renewable equipment such as solar hot water systems, photovoltaics and ground or air source heat pumps.
	* Making it easier to commission systems and to manage controls for multiple renewables.		* Making it easier to commission systems and to manage controls for multiple renewables.

−	The data from the study is available on the Building Data Exchange, created to stimulate innovation and help build more efficient properties.	+	The data from the study is available on the Building Data Exchange platform, created to stimulate innovation and help build more efficient properties.

	Simon Hart, Innovate UK's programme leader for the built environment, said: “Homes and offices are not performing as they should do. They are consuming up to 10 times the energy they should, and there are a multitude of factors behind that. The programme has amassed so much data that it’s difficult for constructors to process it. There is an opportunity now for digital businesses to create smart home or property technology that could be adopted by the construction industry and help it to tackle these issues.”		Simon Hart, Innovate UK's programme leader for the built environment, said: “Homes and offices are not performing as they should do. They are consuming up to 10 times the energy they should, and there are a multitude of factors behind that. The programme has amassed so much data that it’s difficult for constructors to process it. There is an opportunity now for digital businesses to create smart home or property technology that could be adopted by the construction industry and help it to tackle these issues.”
		+
		+	= Find out more =
		+
		+	=== Related articles on Designing Buildings Wiki ===
		+
		+	* Building data exchange.
		+	* Building performance metrics.
		+	* Closing the gap between design and as-built performance.
		+	* Co-heating test.
		+	* Domestic ventilation systems performance.
		+	* Emission rates.
		+	* Energy performance certificates.
		+	* Energy Savings Opportunity Scheme.
		+	* Green building.
		+	* Retrofit.
		+	* Soft landings.
		+	* Sustainability.
		+	* Zero carbon homes.
		+	* Zero carbon non-domestic buildings.

	[[Category:Sustainability]] [[Category:News]]		[[Category:Sustainability]] [[Category:News]]

Designing Buildings at 12:49, 12 February 2016

2016-02-12T12:49:59Z

← Older revision		Revision as of 12:49, 12 February 2016
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	* [https://www.gov.uk/government/publications/low-carbon-homes-best-strategies-and-pitfalls Building Performance Evaluation report on homes].		* [https://www.gov.uk/government/publications/low-carbon-homes-best-strategies-and-pitfalls Building Performance Evaluation report on homes].

−	It found that nearly every non-domestic building had higher carbon emissions than were predicted during the design phase. In some cases, emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.	+	It found that nearly every non-domestic building had higher carbon emissions than were predicted during the design phase. In some cases, total emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.

	Of the domestic buildings studied, carbon emissions were two or three times higher than had been estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.		Of the domestic buildings studied, carbon emissions were two or three times higher than had been estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.
		+
		+	Although the study acknowledges that '...It is a little misleading to call this a ‘performance gap’, as the actual emissions include energy use from cooking and appliances', whereas building regulations calculations only include regulated energy, '...However, even allowing for this, the evidence highlights much higher actual carbon emissions than design-stage estimates.'

	The conclusions drawn echo those found in earlier studies; chiefly that poor commissioning, handover procedures and problems integrating low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.		The conclusions drawn echo those found in earlier studies; chiefly that poor commissioning, handover procedures and problems integrating low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.

Designing Buildings at 12:38, 12 February 2016

2016-02-12T12:38:47Z

← Older revision		Revision as of 12:38, 12 February 2016
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	[[File:Low_carbon_home.jpg\|link=File:Low_carbon_home.jpg]]		[[File:Low_carbon_home.jpg\|link=File:Low_carbon_home.jpg]]

−	~~A new~~ study ~~has found~~ a significant performance gap between design and actual carbon emissions.	+	In February 2016, the findings of an £8 million Innovate UK study were published, highlighting a significant performance gap between design and actual carbon emissions.

−	The ~~government-backed~~ Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects for three years. It found that nearly every non-domestic building had higher carbon emissions than were predicted during the design phase. In some cases, emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.	+	The Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects for three years.

−	~~Of the~~ domestic buildings ~~studied, carbon emissions were two or three times higher than estimated during the design stages~~. ~~One particular house that incorporated energy saving devices such as a heat pump, solar water heating~~ and ~~heat~~-~~recovery ventilation actually used 29 times more than the design estimate for regulated energy~~.	+	* [https://www.gov.uk/government/publications/low-carbon-buildings-best-practices-and-what-to-avoid Building Performance Evaluation report on non-domestic buildings].
		+	* [https://www.gov.uk/government/publications/low-carbon-homes-best-strategies-and-pitfalls Building Performance Evaluation report on homes].

−	The conclusions drawn echo those found in earlier studies; chiefly that poor commissioning, handover procedures and ~~the differences between~~ low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.	+	It found that nearly every non-domestic building had higher carbon emissions than were predicted during the design phase. In some cases, emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.
		+
		+	Of the domestic buildings studied, carbon emissions were two or three times higher than had been estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.
		+
		+	The conclusions drawn echo those found in earlier studies; chiefly that poor commissioning, handover procedures and problems integrating low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.

	Innovate UK project manager Mat Colmer said, “Obviously it’s a challenge that the buildings aren’t performing as intended, but all of the organisations in the project have been incredibly open – including clients such as Asda, M&S, Crest Nicholson and Gentoo. They have gone through the reviews, fixed the problems, and will now be able to tell other people about it. So the news is, it’s not just a group of specialists, but it’s industry people who are grappling with it.”		Innovate UK project manager Mat Colmer said, “Obviously it’s a challenge that the buildings aren’t performing as intended, but all of the organisations in the project have been incredibly open – including clients such as Asda, M&S, Crest Nicholson and Gentoo. They have gone through the reviews, fixed the problems, and will now be able to tell other people about it. So the news is, it’s not just a group of specialists, but it’s industry people who are grappling with it.”
Line 21:		Line 26:
	* Taking thermograprhic images of completed buildings to detect problems with construction details.		* Taking thermograprhic images of completed buildings to detect problems with construction details.
	* More efficient and simpler controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.		* More efficient and simpler controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.
−	* Making it easier ~~for projects~~ to commission ~~uncovered problems~~ and manage controls for multiple renewables.	+	* Making it easier to commission systems and to manage controls for multiple renewables.

	The data from the study is available on the Building Data Exchange, created to stimulate innovation and help build more efficient properties.		The data from the study is available on the Building Data Exchange, created to stimulate innovation and help build more efficient properties.
		+
		+	Simon Hart, Innovate UK's programme leader for the built environment, said: “Homes and offices are not performing as they should do. They are consuming up to 10 times the energy they should, and there are a multitude of factors behind that. The programme has amassed so much data that it’s difficult for constructors to process it. There is an opportunity now for digital businesses to create smart home or property technology that could be adopted by the construction industry and help it to tackle these issues.”

	[[Category:Sustainability]] [[Category:News]]		[[Category:Sustainability]] [[Category:News]]

Designing Buildings at 12:29, 12 February 2016

2016-02-12T12:29:45Z

← Older revision		Revision as of 12:29, 12 February 2016
Line 1:		Line 1:
−	[[File:~~Low carbon home~~.jpg]]	+	[[File:Low_carbon_home.jpg\|link=File:Low_carbon_home.jpg]]

−	~~Performance gaps~~ between design ~~intent~~ and actual carbon emissions ~~have been found by a new study to be strikingly variant~~.	+	A new study has found a significant performance gap between design and actual carbon emissions.

−	The government-backed Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects ~~over the course of~~ three years.	+	The government-backed Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects for three years. It found that nearly every non-domestic building had higher carbon emissions than were predicted during the design phase. In some cases, emissions were 10 times the Building Emission Rate calculated for Part L compliance. Although two-thirds of the buildings studied had renewable energy generation onsite, a significant proportion of these experienced problems that impacted on potential energy savings.

−	~~The study found that nearly every non-~~domestic ~~building exhibited higher~~ carbon emissions ~~in use~~ than ~~expected~~ during the design ~~phase~~. ~~In some cases~~, ~~emissions of higher~~ than ~~up to 10 times~~ the Building Emission Rate (which is calculated as part of gaining Part L compliance) were recorded. Although two-thirds of the buildings studied were utilizing renewable energy generation onsite in an effort at reducing energy consumption, but a sizeable proportion of these experienced extraneous problems that negatively impacted their energy ~~savings~~.	+	Of the domestic buildings studied, carbon emissions were two or three times higher than estimated during the design stages. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.

−	Of the domestic buildings studied, it was found that carbon emissions from new homes were two or three times higher than estimated by the design. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.	+	The conclusions drawn echo those found in earlier studies; chiefly that poor commissioning, handover procedures and the differences between low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.
−		+
−	Funded with an £8m Innovate UK grant, members of the original project teams were able to carry out the study which aimed to fulfill the BPE project’s remit to embed post-occupation review and analysis skills on a cross-industry basis.	+
−		+
−	The conclusions drawn ~~from the study~~ echo those ~~find~~ in earlier ~~post-occupation~~ studies; chiefly that poor commissioning, handover procedures and the differences between low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.	+

	Innovate UK project manager Mat Colmer said, “Obviously it’s a challenge that the buildings aren’t performing as intended, but all of the organisations in the project have been incredibly open – including clients such as Asda, M&S, Crest Nicholson and Gentoo. They have gone through the reviews, fixed the problems, and will now be able to tell other people about it. So the news is, it’s not just a group of specialists, but it’s industry people who are grappling with it.”		Innovate UK project manager Mat Colmer said, “Obviously it’s a challenge that the buildings aren’t performing as intended, but all of the organisations in the project have been incredibly open – including clients such as Asda, M&S, Crest Nicholson and Gentoo. They have gone through the reviews, fixed the problems, and will now be able to tell other people about it. So the news is, it’s not just a group of specialists, but it’s industry people who are grappling with it.”

−	He emphasised that the comprehensive scale of the study and the information ~~that had been~~ generated ~~for the industry~~ was a cause for optimism in terms of the performance gap beginning to be narrowed.	+	He emphasised that the comprehensive scale of the study and the information generated was a cause for optimism in terms of the performance gap beginning to be narrowed.

	NEF energy specialist Federico Seguro said, “The construction industry continues to wrestle with pinpointing and bridging the gap between the design of buildings and their ‘as-built’ performance; a gap that exists across all building sectors.		NEF energy specialist Federico Seguro said, “The construction industry continues to wrestle with pinpointing and bridging the gap between the design of buildings and their ‘as-built’ performance; a gap that exists across all building sectors.
Line 23:		Line 19:
	Recommendations from the BPE study include:		Recommendations from the BPE study include:

−	* Taking thermograprhic images of completed buildings ~~should become a regular technique for detecting anomalies where~~ construction details ~~have not been so robust~~.	+	* Taking thermograprhic images of completed buildings to detect problems with construction details.
−	* More efficient and ~~simple~~ controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.	+	* More efficient and simpler controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.
−	* ~~Make~~ it easier for projects to commission uncovered problems and manage controls for multiple renewables.	+	* Making it easier for projects to commission uncovered problems and manage controls for multiple renewables.
		+
		+	The data from the study is available on the Building Data Exchange, created to stimulate innovation and help build more efficient properties.

	[[Category:Sustainability]] [[Category:News]]		[[Category:Sustainability]] [[Category:News]]

Editor: Created page with "File:Low carbon home.jpg Performance gaps between design intent and actual carbon emissions have been found by a new study to be strikingly variant. The government-backed B..."

2016-02-12T10:11:00Z

Created page with "File:Low carbon home.jpg Performance gaps between design intent and actual carbon emissions have been found by a new study to be strikingly variant. The government-backed B..."

New page

[[File:Low carbon home.jpg]]

Performance gaps between design intent and actual carbon emissions have been found by a new study to be strikingly variant.

The government-backed Building Performance Evaluation (BPE) study monitored the operational performance of 48 non-domestic buildings and 59 residential projects over the course of three years.

The study found that nearly every non-domestic building exhibited higher carbon emissions in use than expected during the design phase. In some cases, emissions of higher than up to 10 times the Building Emission Rate (which is calculated as part of gaining Part L compliance) were recorded. Although two-thirds of the buildings studied were utilizing renewable energy generation onsite in an effort at reducing energy consumption, but a sizeable proportion of these experienced extraneous problems that negatively impacted their energy savings.

Of the domestic buildings studied, it was found that carbon emissions from new homes were two or three times higher than estimated by the design. One particular house that incorporated energy saving devices such as a heat pump, solar water heating and heat-recovery ventilation actually used 29 times more than the design estimate for regulated energy.

Funded with an £8m Innovate UK grant, members of the original project teams were able to carry out the study which aimed to fulfill the BPE project’s remit to embed post-occupation review and analysis skills on a cross-industry basis.

The conclusions drawn from the study echo those find in earlier post-occupation studies; chiefly that poor commissioning, handover procedures and the differences between low energy systems, are working to slow down progress towards the industry’s ambitious 2025 and 2050 carbon reduction targets.

Innovate UK project manager Mat Colmer said, “Obviously it’s a challenge that the buildings aren’t performing as intended, but all of the organisations in the project have been incredibly open – including clients such as Asda, M&S, Crest Nicholson and Gentoo. They have gone through the reviews, fixed the problems, and will now be able to tell other people about it. So the news is, it’s not just a group of specialists, but it’s industry people who are grappling with it.”

He emphasised that the comprehensive scale of the study and the information that had been generated for the industry was a cause for optimism in terms of the performance gap beginning to be narrowed.

NEF energy specialist Federico Seguro said, “The construction industry continues to wrestle with pinpointing and bridging the gap between the design of buildings and their ‘as-built’ performance; a gap that exists across all building sectors.

“Our meta-analysis of all of the BPE projects led by Registered Providers revealed the trigger points resulting in social housing projects failing to deliver on the designed performance targets, and identified a number of key issues for the future. Our research will empower Registered Providers who have the means to champion and combat the ‘performance gap’ in buildings, and allow them to apply lessons from the BPE to their new developments.”

Recommendations from the BPE study include:

* Taking thermograprhic images of completed buildings should become a regular technique for detecting anomalies where construction details have not been so robust.
* More efficient and simple controls for renewable equipment such as solar hot water systems, PV and ground or air source heat pumps.
* Make it easier for projects to commission uncovered problems and manage controls for multiple renewables.

[[Category:Sustainability]] [[Category:News]]