Nine departments already purchase a proportion of their electricity from renewable sources with a further eight or so planning to do likewise. Care should be taken to establish exactly what the supplier is providing, what premium is being paid and what accreditation process is being applied. Departments might also consider generating their own green electricity using for example CHP, wind power and Photovoltaic cladding where circumstances permit and it is cost effective to do so - possibly under a PFI or public private partnership scheme. When obtaining quotations the supplier should identify if the green electricity is CCL exempt. Fossil Fuels Coal Oil Gas Electricity generated from these sources is not renewable.
Gas is less polluting than coal and oil.
Nuclear Nuclear power is not a source of carbon emissions. However, there are problems associated with the process, such as the treatment of nuclear waste and the growing stock of unwanted plutonium. It also is not classified as renewable energy. Electricity generated from the other sources listed above does not deplete the earth's resources or emit greenhouse gases. When a supplier signs up a customer on one of the green supply contracts, the supplier must buy an equivalent amount of 'green' electricity to cover the quantity supplied.