Whitbread, the hospitality group, has revealed plans to spend more than £7m on a sustainability programme in a bid to boost the environmental performance of its hotels, restaurants and coffee shops. It said the investment would focus on reducing the company's carbon emissions and water consumption by introducing a package of efficiency measures to Whitbread's current estate. The company wants to reduce its energy consumption by 26% and its water usage by 20% by 2020. As part of the efficiency programme, Whitbread is to introduce 20,000 low-flow showerheads, each of which will save three litres of water per minute. It will also make a £2.6m investment in low-energy LED light bulbs, which should save 6,200 tonnes of carbon each year. Other measures include investments in voltage optimisation, thermal building insulation, automated lighting systems, bathroom tap restrictors and dual-flush toilets, as well as renewable technology including solar panels and micro combined heat and power and solar film.