Utilities are services that include the supply of gas, electricity, water, and sewerage. The term utilities may also be used to describe the companies that supply such services. Low carbon utilities refer to services that have a lower carbon footprint than the traditional services, such as supplies of low carbon electricity generated by renewable energy sources for example. - Description added by: David Lockie

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Renewable and alternative energy sources are set to play an increasingly important role in providing the electricity, heat, cooling and fuels that society needs. There is a wide range of energy sources such as solar (both photovoltaic and solar thermal), wind, bio-fuels and biomass, hydro-electric, geothermal and heat pumps. - Description added by: David Lockie