Energy & Sustainability worked example

Renewable Energy Percentage at 57% renewable electricity target for the period: a worked example

What does the result look like when renewable electricity target for the period reaches 57%? The full calculation is worked below with real intermediate numbers. an ESG reporting or procurement lead needs renewable electricity share against a target

The inputs for this scenario

  • Renewable electricity supplied (contracts plus on-site generation): 920,000 kWh (unchanged)
  • Total site electricity consumption: 2,500,000 kWh (unchanged)
  • Renewable electricity target for the period: 57 % (raised for this scenario; the documented default is 50)

Working through the calculation

  • Applying the documented formula (Renewable energy percentage = renewable electricity supplied ÷ total electricity consumption × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 36.8 % for renewable electricity share, the number this scenario is built around.
  • At this operating point the engine returns 20.2 points for gap to renewable electricity target.
  • At this operating point the engine returns 920,000 kWh for renewable electricity supplied.
  • At this operating point the engine returns 2,500,000 kWh for total electricity consumption.

How this compares with the baseline

  • Against the tool's baseline example, where renewable electricity target for the period sits at 50% and the headline result is 36.8 %, this scenario lands almost exactly on the baseline at 36.8 %.
  • A figure at this level is achievable when renewable electricity target for the period is genuinely sustained, not just peaked for a shift. It treats all renewable kWh equally regardless of contract quality; unbundled RECs and a high-additionality on-site PPA both count the same here even though auditors may weight them differently.

Results at a glance

  • Renewable electricity share: 36.8 % (headline result)
  • Gap to renewable electricity target: 20.2 points
  • Renewable electricity supplied: 920,000 kWh
  • Total electricity consumption: 2,500,000 kWh

Run it with your numbers

  • Every input above is editable in the live Renewable Energy Percentage calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.