Ene09 Hot water – Above Green

*contributes to 40 credits available for asset energy rating

Aim

To recognise the contribution that hot water systems make to the overall energy performance of the asset.

Question

Is hot water generated on-site?
Is the main on-site hot water system local or centralised?
What is the main generation type for on-site hot water?
What energy source is used to generate on-site hot water?
Please enter the hot water generation efficiency or COP, (if known)
In what year was the main hot water generator/hot water system last replaced (if known)?
For hot water provided by district heating only;
1. Do you know what types of heat generation are used for the network heat supply?
2. What are the main heat generation sources?
3. What is the percentage distribution losses for the heat network (if known)?

Credits	Question	For questions 1 - 4, 7a - b select a single answer option. For question 5,6 and 7c enter value
-	1	Yes/No
-	2	Centralised/local
-	3	Boiler Heat pump/ reversible chiller Direct electricity Other on-site system e.g. CHP/solar thermal Other (user entry)
-	4	Question not answered Electricity Natural gas Burning oil/ Kerosene Gas oil Fuel oil Diesel Petrol LPG Other petroleum gas Coal Biodiesel Landfill gas Other biogas Wood Renewable heat source Renewable cooling
-	5	Enter value
-	6	Enter year
-	7a	Yes/No Note: This should be entered under Ene 9b in the BREEAM In-Use Online Platform
-	7b	Heat source 1 Heat source 2 Heat source 3 Heat source n Note: This should be entered under Ene 9b in the BREEAM In-Use Online Platform
-	7c	Enter % Note: This should be entered under Ene 9b in the BREEAM In-Use Online Platform

Evidence

Criteria	Evidence requirement
-	The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.
All	Visual inspection and verification through photographic evidence of water heating systems.
All	Extract of relevant O&M manuals or a copy of manufacturer information (confirming generation efficiency or COP).
All	Installation diagrams.
All	Copy of documentation outlining when the hot water system was installed or replaced, such as: Extract of O&M manuals or a copy of manufacturer information for heat generator/heating system Service records Installation records Maintenance records.
7	Copy of the documentation provided by the district heating operator.

Additional information

Asset energy calculator

In order to obtain the maximum possible number of credits for the asset energy performance as much information as possible should be entered. Where no value is entered, the asset energy rating calculator will assume a pessimistic default value.