The National Maritime Museum is a World Heritage Site of vital international importance. Based at Maritime Greenwich, the Museum attracts over 1.2 million visitors per year and contains the most important holdings in the world on the history of Britain at sea, including maritime art, cartography, manuscripts, ship models and plans, scientific and navigational instruments, time-keeping and astronomy.

The Museum is striving to become a high profile beacon of sustainable energy use, and has decided to install a 9kWp photovoltaic array on its south west wing. Utilising unused rooflights, the integrated system will provide around 8000 kWh of electrivity and reduce carbon dioxide emissions by approximately 3.3 tonnes each year. Following ongoing support and collaboration with CEN, the Museum has been awarded 55% grant funding from the DTI's PV Major Demonstration Programme. It is hoped that the installation will proceed in Spring 2005.