Recent findings from the Better Buildings Partnership raise serious questions about the efficacy of energy efficiency ratings used in the United Kingdom.
The study found that buildings that have received the highest rating—an A Energy Performance Certificate—use more energy than some of their peers rated C, D, E, or F. The analysis of self-reported energy data in 2020 for more than 1,100 commercial properties found that the median energy intensity for all B-rated buildings is higher than for C-rated buildings.
The disparity between how buildings are designed and their actual greenhouse gas emissions is widespread in the U.K. The findings are in line with past evidence that green building certifications based on predicted energy use don’t necessarily translate to energy savings in the field.
Some studies have found that LEED certification yields better energy efficiency, but others have found that certified buildings use more energy than non-certified buildings. The U.S. Green Building Council maintains that its own research shows certified buildings are overall more efficient.
Part of the explanation for the disparity between ratings systems and real-world results could be due to the limitation of assessments that only predict potential energy efficiency. In practice, building management systems may not be set up or used properly. In addition, people sometimes undo the efficiency design by bringing fans into buildings or installing additional air conditioners.
Related Stories
Codes and Standards | Dec 18, 2019
New York City passes legislation to prevent bird strikes on buildings
Requires bird-safe materials on first 75 feet of a structure.
Codes and Standards | Dec 16, 2019
New Buildings Institute seeks entries for Zero Buildings Database
Listing illustrates feasibility of ultra low-energy buildings.
Codes and Standards | Dec 13, 2019
USGBC launches new tool to prioritize sustainability strategies
Highlights building design features that can lead to better performance.
Codes and Standards | Dec 12, 2019
Coalition calls for consistent building data disclosure regulations in Canada
Major real estate firms are driving the effort.
Codes and Standards | Dec 10, 2019
Utilities rolling out more grid-interactive efficient building programs
Focus is on energy savings and demand flexibility.
Codes and Standards | Dec 9, 2019
Canada’s Zero Carbon Building Standard reports first 10 certifications
Projects include new and existing offices, schools, and warehouses.
Codes and Standards | Dec 6, 2019
New research examines flood mitigation policies in the U.S.
Thirteen states or cities have adopted effective measures; some restricting development in vulnerable areas.
Codes and Standards | Dec 5, 2019
USGBC unveils vision for LEED Positive
Roadmap will lay foundation for a future LEED that is regenerative.
Codes and Standards | Dec 5, 2019
Report shows reducing embodied carbon can save money and help mitigate climate change
Embodied carbon now accounts for 11% of global greenhouse gas emissions.
Codes and Standards | Dec 5, 2019
Dubai, London and New York are 2019’s ‘Construction Mega Cities’
From 2007 to 2025, GlobalData expects the cities’ combined gross domestic product (GDP) to increase by more than US$8 trillion to US$20.4 trillion.