Under the ‘Grenelle de l’environnement’, French public policy defining key actions for tackling sustainable development issues, it was decided that most energyconsuming public-owned buildings would be subject to an energy audit by 2010. The aim is to reduce energy consumption by 40% and GHG emissions by 50% by 2020. As a public company, RATP had to meet this new regulation and organised energy audits for all its tertiary and industrial buildings. Thirty-two sites were assessed in 2012 and the remaining 14 are being assessed in 2013 and 20141.
This broad investigation gave RATP a clear view of the energy performance of its sites and enabled useful comparisons between similar sites. The average energy bill for a RATP building amounted to €320,000 per year with an average cost of €150/m2/year. Energy audits are also a great tool for monitoring the achievements made in other buildings. In a previous phase, energy audits focused mostly on expensive actions that were not relevant for the short term, as they would require additional studies and budgets. So a new analysis framework was established to highlight what measures could be taken in a shorter term. This has led to short-term actions for heating, cooling and ventilation systems.
1 The Ticket to Kyoto project allowed RATP to finance the last seven energy audits.
Investment sheet: RATP energy audit
This broad investigation gave RATP a clear view of the energy performance of its sites and enabled useful comparisons between similar sites. The average energy bill for a RATP building amounted to €320,000 per year with an average cost of €150/m2/year. Energy audits are also a great tool for monitoring the achievements made in other buildings. In a previous phase, energy audits focused mostly on expensive actions that were not relevant for the short term, as they would require additional studies and budgets. So a new analysis framework was established to highlight what measures could be taken in a shorter term. This has led to short-term actions for heating, cooling and ventilation systems.
1 The Ticket to Kyoto project allowed RATP to finance the last seven energy audits.
Investment sheet: RATP energy audit