The presentation covered energy efficiency initiatives at Rolls-Royce in Bristol. It discussed establishing an energy charter and targets, identifying areas of high energy use, training energy champions, implementing shutdown procedures for holidays, upgrading lighting, and capturing heat from test cells. Measurable savings included £4,000 per weekend from shutdowns, £95,000 annually from LED lighting, and £7,500 per year from installing detuner covers. The presentation also outlined Unite Students' strategy to procure energy efficiently, reduce demand through behavior change and hardware upgrades, and lower emissions through renewables.