The London Energy Transformation Initiative (LETI) has launched a voluntary energy declaration, which aims to encourage designers to predict the energy use of their buildings.
The LETI Declaration is a voluntary statement that is appended to energy statements as a spreadsheet. It has been developed with input from more than 40 building industry professionals. It aims to encourage project teams to focus more on performance outcomes and requires designers to record information on predicted energy consumption and carbon emissions, carbon content of heat, low carbon electricity (including dynamic demand response), energy bills, data disclosure, life-cycle carbon and air quality. It also includes potential commitments to predict energy bills, disclose data and ensure construction quality.
The standard LETI Declaration can be used for all building types, and a specific version has been developed for air conditioned offices.
Its structure is aligned with the Design for Performance initiative, which aims to write performance targets into construction contracts. The aim is to establish a pathway towards meeting the objectives of the Draft London Plan, which requires large buildings to record energy use annually for five years.
LETI wants individuals to join architects, engineers and development professionals to apply the declaration to their work. Signatories include staff from Feilden Clegg Bradley Studios, Levitt Bernstein, PRP, Haworth Tompkins, Elementa, Etude, Verco, Hoare Lea and CBRE.
Find out more at the LETI website.