Energy Academy
Analysis & Reporting9 / 12

Identifying & Quantifying Opportunities

Analysing inefficiencies, estimating savings, and ranking by cost-effectiveness.

11 min read · Jacob Willis, Net Zero Lead · Last reviewed July 2026


Everything an audit gathers converges here: the walk-through's suspicions, the loggers' evidence, the interviews' context and the baseline's reference points become a list of specific, costed, ranked opportunities. This is the intellectual centre of the audit and the part clients actually pay for. The craft has two halves: estimating each measure's saving honestly, and ranking the portfolio so the client knows exactly what to do first.

In this lesson

  • 01Three ways to size a saving
  • 02Ranking the portfolio
  • 03Do not discard the non-energy benefits
  • 04Sources and further reading