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
| Aug 21, 2014
American Iron and Steel Institute revises 14 test standards
The American Iron and Steel Institute (AISI) published 14 revised test standards in its S900-series.
| Aug 14, 2014
Mississippi county rejects adoption of state building code
The county board of supervisors voted unanimously to opt out of the state building code.
| Aug 14, 2014
Boards at odds over North Carolina county’s CM-at-Risk policy
Some local small contractors are not pleased with the school board’s CM-at-Risk policy that was instituted in 2007. The county’s board of commissioners has offered a sympathetic ear to their complaints
| Aug 14, 2014
2014 National Electrical Code now effective in 12 states; 11 more to come online by January
The National Fire Protection Association (NFPA) says that the 2014 edition of the National Electrical Code(NEC) is now effective in 12 states: Alabama, Colorado, Idaho, Maine, Massachusetts, Minnesota, New Mexico, Rhode Island, South Dakota, Vermont, Washington and Wyoming.
| Aug 14, 2014
CDC report highlights need for heat acclimatization to prevent worker deaths
CDC supports OSHA’s analysis suggesting that the primary risk factor for heat fatalities is the lack of acclimatization programs.
| Aug 8, 2014
California revives study of earthquake faults
California reinstituted an ambitious plan to study dangerous earthquake faults and create zoning maps that could restrict development.
| Aug 6, 2014
Loudoun County, Virginia may dump green building requirements
Loudoun County, Va., supervisors may do away with a county policy that requires LEED Silver certification on new county buildings.
| Aug 6, 2014
$300 million mixed-use project in Chicago’s medical district wins key approval
The Illinois Medical District Commission approved a 1.16 million-sf, $300 million mixed-use project in Chicago’s Illinois Medical District.
| Aug 4, 2014
Facebook’s prefab data center concept aims to slash construction time in half
Less than a year after opening its ultra-green, hydropowered data center facility in Luleå, Sweden, Facebook is back at it in Mother Svea with yet another novel approach to data center design.
| Jul 31, 2014
LEED Dynamic Plaque gives owners and tenants ability to monitor building performance
The LEED Dynamic Plaque could aid certified buildings in maintaining performance with up-to-date information about water and energy use, waste reduction efforts, occupant experience, and other green performance categories.
