This document provides the UK government's response to the EU's Green Paper on energy policy. It welcomes the framework provided by the Green Paper to discuss European energy policy. The UK recognizes the need for a new, cooperative approach to energy at the EU level to address challenges like climate change and increasing energy imports. However, it also believes that the energy mix should not be determined centrally at the EU level. The UK supports further liberalization of the EU's energy markets and increased cooperation on issues like renewable energy and energy efficiency. It agrees an annual strategic energy review could help the EU develop its long-term energy policy.