<p>DFID has significantly improved energy efficiency by achieving a 35% reduction in carbon emissions during 2011-12 against the 2009-10 Greening Government baseline year. DFID has improved energy efficiency through various measures; reducing the number of IT servers/printers, upgrading all laptops and PCs to models which use at least 50% less energy, installing a green roof at our Abercrombie House (AH) office and reducing plant operation times ensuring better temperature control at both UK sites. This reporting year we have installed a biomass boiler at AH and have improved the external fabric of the building reducing heat loss. In London we</p><p><?notus-xml column=73?></p><p>have recently moved to a new smaller office which will save 25% in energy usage. As part of this we are also replacing elements of the heating and lighting systems with more modern, energy-efficient alternatives.</p>