Simple payback for energy savings - Revision history

Designing Buildings at 07:49, 31 January 2025

2025-01-31T07:49:16Z

← Older revision		Revision as of 07:49, 31 January 2025
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	* The cost of implementing the measure should be based on prices current at the date when the application is made to the building control body and be confirmed in a report signed by a suitably qualified person.		* The cost of implementing the measure should be based on prices current at the date when the application is made to the building control body and be confirmed in a report signed by a suitably qualified person.
	* The annual energy savings should be estimated using the National Calculation Methodology Modelling Guide.		* The annual energy savings should be estimated using the National Calculation Methodology Modelling Guide.
−	* The energy prices that are current when the application is made to the building control body should be used when evaluating energy savings. Current prices are given on the BEIS website, at: https://www.gov.uk/government/collections/quarterly-energy-prices.	+	* The energy prices that are current when the application is made to the building control body should be used when evaluating energy savings. Current prices are given on the BEIS website, at: [https://www.gov.uk/government/collections/quarterly-energy-prices https://www.gov.uk/government/collections/quarterly-energy-prices].

	Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilble if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.		Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilble if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.

Designing Buildings at 07:48, 31 January 2025

2025-01-31T07:48:56Z

← Older revision		Revision as of 07:48, 31 January 2025
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−	According to approved document L ~~of the building regulations~~, ~~in relation to the conservation~~ of ~~fuel~~ and ~~power~~, the term 'simple payback' refers to:	+	According to [https://www.gov.uk/government/publications/conservation-of-fuel-and-power-approved-document-l Approved document L, Conservation of Fuel and Power, Volume 2: Buildings other than dwellings], 2021 edition incorporating 2023 amendments, the term 'simple payback' refers to:

	The amount of time it will take to recover an initial investment through energy savings, calculated by dividing the marginal additional cost of implementing an energy efficiency measure by the value of the annual energy savings achieved by that measure taking no account of VAT.		The amount of time it will take to recover an initial investment through energy savings, calculated by dividing the marginal additional cost of implementing an energy efficiency measure by the value of the annual energy savings achieved by that measure taking no account of VAT.
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	When making this calculation, the following guidance should be used:		When making this calculation, the following guidance should be used:

−	* The marginal additional cost is the additional cost (materials and labour) of incorporating, for example, additional insulation, not the whole cost of the work.	+	* The marginal additional cost is the additional cost (materials and labour) of incorporating, for example, additional insulation – not the whole cost of the work.
−	* The cost of implementing the measure should be based on prices current at the date the ~~proposals are~~ made ~~known~~ to the building control body ~~(BCB)~~ and be confirmed in a report signed by a suitably qualified person.	+	* The cost of implementing the measure should be based on prices current at the date when the application is made to the building control body and be confirmed in a report signed by a suitably qualified person.
−	* The annual energy savings should be estimated using ~~an energy calculation tool approved by~~ the ~~Secretary of State pursuant to regulation 24~~.	+	* The annual energy savings should be estimated using the National Calculation Methodology Modelling Guide.
−	* ~~For the purposes of the approved document, the~~ energy prices that are current ~~at the time of~~ the application to building control should be used when evaluating ~~the annual~~ energy savings. Current ~~energy~~ prices ~~can be obtained from~~ the ~~Department of Energy & Climate Change (DECC)~~ website.	+	* The energy prices that are current when the application is made to the building control body should be used when evaluating energy savings. Current prices are given on the BEIS website, at: https://www.gov.uk/government/collections/quarterly-energy-prices.

−	Typically, an initial investment, in for example the achievement of U-values, will be considered economically ~~feasilbe~~ if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.	+	Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilble if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Approved document L.		* Approved document L.

Designing Buildings at 08:19, 19 December 2020

2020-12-19T08:19:08Z

← Older revision		Revision as of 08:19, 19 December 2020
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	* Zero carbon homes.		* Zero carbon homes.

−	[[Category:~~Regulations~~]] [[Category:~~DCN_Regulation~~]] [[Category:~~Standards_/_measurements~~]] [[Category:~~DCN_Standard~~]] [[Category:Sustainability]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Designing Buildings: moved Simple payback to Simple payback for energy savings

2019-07-26T11:11:52Z

moved Simple payback to Simple payback for energy savings

← Older revision

Revision as of 11:11, 26 July 2019

Designing Buildings at 11:11, 26 July 2019

2019-07-26T11:11:35Z

← Older revision		Revision as of 11:11, 26 July 2019
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	Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilbe if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.		Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilbe if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Approved document L.		* Approved document L.
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	* Zero carbon homes.		* Zero carbon homes.

−	[[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]	+	[[Category:Regulations]] [[Category:DCN_Regulation]] [[Category:Standards_/_measurements]] [[Category:DCN_Standard]] [[Category:Sustainability]]

Designing Buildings at 05:55, 26 June 2018

2018-06-26T05:55:33Z

← Older revision		Revision as of 05:55, 26 June 2018
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	* Energy targets.		* Energy targets.
	* Green Deal.		* Green Deal.
		+	* Payback period.
	* Renovation.		* Renovation.
	* Retrofit.		* Retrofit.

Designing Buildings at 12:55, 19 June 2018

2018-06-19T12:55:03Z

← Older revision		Revision as of 12:55, 19 June 2018
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	* Retrofit.		* Retrofit.
	* Thermal element.		* Thermal element.
		+	* Time value of money.
	* U-value.		* U-value.
	* Zero carbon buildings.		* Zero carbon buildings.

Designing Buildings at 07:58, 13 August 2017

2017-08-13T07:58:44Z

← Older revision		Revision as of 07:58, 13 August 2017
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	* The annual energy savings should be estimated using an energy calculation tool approved by the Secretary of State pursuant to regulation 24.		* The annual energy savings should be estimated using an energy calculation tool approved by the Secretary of State pursuant to regulation 24.
	* For the purposes of the approved document, the energy prices that are current at the time of the application to building control should be used when evaluating the annual energy savings. Current energy prices can be obtained from the Department of Energy & Climate Change (DECC) website.		* For the purposes of the approved document, the energy prices that are current at the time of the application to building control should be used when evaluating the annual energy savings. Current energy prices can be obtained from the Department of Energy & Climate Change (DECC) website.
		+
		+	Typically, an initial investment, in for example the achievement of U-values, will be considered economically feasilbe if the simple payback period is not greater than 15 years. However, other periods may be considered economically feasible for other elements.

	= Find out more =		= Find out more =

Designing Buildings at 07:51, 13 August 2017

2017-08-13T07:51:45Z

← Older revision		Revision as of 07:51, 13 August 2017
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	* Renovation.		* Renovation.
	* Retrofit.		* Retrofit.
		+	* Thermal element.
		+	* U-value.
	* Zero carbon buildings.		* Zero carbon buildings.
	* Zero carbon homes.		* Zero carbon homes.

	[[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]		[[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Designing Buildings: Created page with "According to approved document L of the building regulations, in relation to the conservation of fuel and power, the term 'simple payback' refers to: The amount of time it will ..."

2017-08-13T07:50:31Z

Created page with "According to approved document L of the building regulations, in relation to the conservation of fuel and power, the term 'simple payback' refers to: The amount of time it will ..."

New page

According to approved document L of the building regulations, in relation to the conservation of fuel and power, the term 'simple payback' refers to:

The amount of time it will take to recover an initial investment through energy savings, calculated by dividing the marginal additional cost of implementing an energy efficiency measure by the value of the annual energy savings achieved by that measure taking no account of VAT.

When making this calculation, the following guidance should be used:

* The marginal additional cost is the additional cost (materials and labour) of incorporating, for example, additional insulation, not the whole cost of the work.
* The cost of implementing the measure should be based on prices current at the date the proposals are made known to the building control body (BCB) and be confirmed in a report signed by a suitably qualified person.
* The annual energy savings should be estimated using an energy calculation tool approved by the Secretary of State pursuant to regulation 24.
* For the purposes of the approved document, the energy prices that are current at the time of the application to building control should be used when evaluating the annual energy savings. Current energy prices can be obtained from the Department of Energy & Climate Change (DECC) website.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Approved document L.
* Building control body.
* Building regulations.
* Consequential improvements.
* Energy targets.
* Green Deal.
* Renovation.
* Retrofit.
* Zero carbon buildings.
* Zero carbon homes.

[[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]