As stated in section 7.15, Scottish Futures Trust has developed an 'Energy Conservation Measures (ECM) Whole Life Cost Tool' designed to assist public sector partners managing operational PPP projects to make informed decisions to optimise a built asset's NZ performance where formal NZ changes or variations are being considered.
The appraisal tool provides a consistent method of comparing ECM outcomes where an Authority is considering NZ changes or variations in existing operational PPP projects. It is both a qualitative and quantitative process that looks at the energy conservation outcomes in costs and relative savings over the remaining period of the PPP contract. The appraisal tool promotes the analysis of whole life outcomes across three assessment criteria: commercial; environmental performance and environmental savings against a business-as-usual baseline.
The Tool (and Guidance Note) has been developed to support organisations operating PPP projects, in order to assess the differing impacts and outcomes associated with investing in ECMs within such building contracts. The Tool covers energy (kWh) and GHG emissions costs saving forecasts, alongside potential lifecycle cost/benefits when investing in differing ECMs.
Prior to using the Tool, it is the expectation that users will already have identified ECM opportunities and associated cost inputs (energy performance and cost data), ideally through Decarbonisation Options Assessments (aka energy audits) as set out in this chapter with subsequent ECM analysis by Project Co or Authority appointed specialists.
Users should refer to the ECM Whole Life Cost Tool user guide for detailed guidance on how to use the tool, with particular reference to 'ECM Options Data' and 'ECM Savings', with Annual Emissions Forecasting results displayed on the Dashboard.
Further details with the links to both the ECM appraisal tool and user guide are included in Appendix 2.