Case Study: Sainsbury’s achieves 30% energy savings and 20% CO2 reduction with Ameresco

Retail Pioneer of Energy Efficiency Programme Enjoys Sustained Energy Savings and CO2 Reduction

Sainsbury’s, a UK retail pioneer in energy efficiency, faced the challenge of cutting operating costs and its carbon footprint across a large estate after multiple “Reset” programmes. In 2015 Sainsbury’s engaged Ameresco for a series of projects — including the LED reset, Graphite 6 LED Rollout and Project Jade LED — alongside upgrades to HVAC, refrigeration and building management systems.

Ameresco coordinated delivery across 200+ stores under strict H&S, installing LED lighting, BMS, HVAC and refrigeration/power improvements as part of an £11.8M programme. The work has delivered an estimated 343,000,000 kWh annual energy savings, roughly 30% energy and 15% water savings, a 20% reduction in CO2, ongoing post‑implementation monitoring across more than 200 stores and sustained savings beyond the investment period.

Sainsbury’s