ENERGY SAVING


Energy saving through design for performance


Heating and cooling in buildings and industry accounts for half of the EU’s energy consumption according to the European Commission, of which approximately 75% is still generated from fossil fuels. Martyn Ives, technical manager, Fujitsu General Air Conditioning UK


T


his statistic has driven the UK government to become the first major economy to legislate for net zero emissions by 2050, surpassing the targets set by the EU directive. Recent steps forward, especially in the commercial built environment, saw the introduction of minimum energy efficiency standards, forcing building owners to improve building efficiencies when commencing a new agreement with a tenant.


From 01 April 2018 it was illegal to privately rent a non- domestic building if it did not meet the minimum requirement of an E rating.


Intentions have been highlighted to raise


the standard again in 2025 and in 2030 to D and C ratings respectfully.


Scope of Base Building Energy 42 January 2020


Whilst a great step forward in principle, the difference between a buildings design EPC rating and its performance efficiencies remain a key topic of contention across our industry. The Better Building Partnership has been working to deliver The Design for Performance initiative, attempting to eliminate the ‘Design for Compliance’ culture which has led to a performance gap. Case studies such as The Design to Performance rating scheme, the National Australian Built Environment Rating System (NABERS), has been used for reference. Operating in Australia, since 1998, becoming a compulsory rating system in 2010, NABERS has since demonstrated an improvement of 36% on average base building energy intensity, with average building star ratings increasing from 3.3 to 4.4. A distinct improvement from designing to achieve a buildings operational performance.


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