A graph showing the energy efficiency rating of a building in the United Kingdom. The rating is based on a scale of A to G, with A being the highest and G the lowest. The graph shows a rating of B3, indicating a good level of energy efficiency. The graph is divided into sections labeled A to G, with each section representing a different level of energy efficiency. The section for B is highlighted in green, indicating that the building meets the energy efficiency standards for that rating. The graph also includes a section labeled 'C' which is highlighted in yellow, indicating that the building is above the minimum energy efficiency standards for that rating