Evaluation methodology selection wizard
Methodology finder – Grants and subsidies – Industry specific
Available policy / sector / method combinations described in specific evaluation guides
- Engineering estimate [GUIDE 16]
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 | |
| Billing analysis Fallback methodology: residential / billing analysis [PSMC 8] |
Easy | Too aggregated | Unitary, participant | Bottom-up and top-down | Ex-post only | For each participant | By complementary method | No, follows from method | For behaviour, temperature | E.g. free riders (in case of subsidies) |
| Deemed savings (alternative method as mentioned in the current PSMC engineering estimate [PSMC 16]) |
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 |
| Energy indicator sector (energy intensity) Fallback methodology: non-residential / subsector indicator [PSMC 12 Fallback methodology: agriculture / subsector indicator [PSMC 18] |
Only statistics | Aggregated (black box) | Total savings | Top-down | Ex-post only | From statistics | No (included in total savings) | No (included in total savings) | For activity level and temperature | E.g. double counting |
| Energy indicator equipment (unit consumption) Fallback methodology: industry general / (subsector indicator/unit consumption) [PSMC 17] |
Easy (trend) | Only uniform systems | Unitary, system | Bottom-up | Ex-post only | Per average unit of equipment | By complementary method | No, follows from method | For behaviour, temperature, activity level | E.g. double counting |