Evaluation methodology selection wizard
Methodology finder – Market based instruments – Industry general
Available policy / sector / method combinations described in specific evaluation guides
- Engineering estimate [GUIDE 30]
This method requires data on the amount of energy saved as a result of the changes in large specific installations. Engineering estimates are a very suitable method for this. The method will provide the energy savings for a single installation. In this case the energy savings in different installations will differ quite a lot, which requires collecting the energy savings results of all installations separately and add them up to get the total effect of the policy.
Evaluation methodology comparison table
Evaluation method | Pros & cons | Method characteristics | Required input data | |||||||
Pro | Con | Savings output | Aggregation level | Application (ex-ante/ex-post) | Energy use before and after actions | Number of energy saving actions | Energy saved per action | Normalisation factors | Gross-to-net adjustments | |
Deemed savings Fallback methodology: residential / deemed savings [GUIDE 28] |
Cheap | Imprecise | Unitary, mostly system | Bottom-up | Ex-ante and ex-post | No (covered in savings) | By complementary method | To be estimated | No (covered in method) | E.g. free riders (in case of subsidies) |
Engineering estimate | Precise | Expensive | Unitary, complex system | Bottom-up | Ex-ante and ex-post | For each system | By complementary method | No, follows from method | No (method on normalised case) | E.g. non-compliance |