What does SIR stand for in the context of energy retrofits?

In the context of energy retrofits, SIR stands for Saving to Investment Ratio. This financial metric is crucial for evaluating the cost-effectiveness of energy efficiency projects. The SIR is calculated by dividing the total savings generated from energy improvements by the total investment costs associated with implementing those improvements.

A high SIR indicates that the energy savings significantly outweigh the costs, making the retrofit project a financially sound decision. This ratio helps homeowners, businesses, and organizations decide whether to pursue specific retrofits based on potential returns on their investments. It emphasizes the importance of financial assessment in the decision-making process for energy efficiency measures, providing a clear picture of the anticipated benefits relative to the costs involved.

Other terms like Systematic Investment Rate, Standardized Insight Report, and Systematic Income Return do not have the same relevance in the context of evaluating the financial viability of energy retrofits, making Saving to Investment Ratio the most accurate and applicable choice.