Buildings fail to live up to energy performance predictions

2nd March 2015


Related Topics

Related tags

  • Management/saving ,
  • Property ,
  • Management ,
  • Auditing

Author

Timothy Linnington

Guidance on how to ensure buildings meet expectations on energy use has been published by researchers who claim that consumption can often be double that predicted by its designers.

The report from the building research centre, the BRE, and industry group the Energy Services and Technology Association (ESTA), aims to help facilities managers and operators reconcile the difference between predicted and actual energy use in buildings, which they call the "performance gap".

There are currently two indicators of a building's energy performance. All properties must have an energy performance certificate (EPC) rating, which is a theoretical assessment of a buildings energy needs in optimum conditions, while large public sector buildings (over 500m2) must display a display energy certificate (DEC) showing actual energy consumption.

The DEC is almost always higher due to occupant behaviour, non-standard hours of operation, and unregulated energy uses such as IT and office equipment, according to the report.

The report suggests that building operators can better understand the energy use of a building and how to improve it by using data from an EPC and a DEC, and inputting it into the government's green deal assessment tool (GD-SBEM).

The tool can also help them calculate the costs and related payback of investment in equipment to improve efficiency, it says. In addition, larger organisations can use the tool to help report against the energy savings opportunity scheme (ESOS).

BRE and ESTA have also published published guidance on how to make a financial case for investing in energy efficiency improvements. Author of the report, Andy Lewry said: "One of the biggest obstacles to the adoption of energy efficiency measures in an organisation is a poor business case.

"Critical to your success are clear and concise metrics that address the consequences of a do-nothing strategy and messaging that appeal to a non-technical, financially driven audience," he said.


Transform articles

National climate plans could see fossil fuel demand peak by 2025

Demand for fossil fuels will peak by 2025 if all national net-zero pledges are implemented in full and on time, the International Energy Agency (IEA) has forecast.

15th October 2021

Read more

The Green Homes Grant is set to deliver only a fraction of the jobs and improvements intended, leading to calls for more involvement from local authorities in future schemes.

23rd September 2021

Read more

COVID-19 recovery packages have largely focused on protecting, rather than transforming, existing industries, and have been a “lost opportunity” for speeding up the global energy transition.

23rd September 2021

Read more

Half of the world's 40 largest listed oil and gas companies will have to slash their production by at least 50% by the 2030s to align with the goals of the Paris Agreement, new analysis has found.

9th September 2021

Read more

None of England’s water and sewerage companies achieved all environmental expectations for the period 2015 to 2020, the Environment Agency has revealed. These targets included the reduction of total pollution incidents by at least one-third compared with 2012, and for incident self-reporting to be at least 75%.

30th July 2021

Read more

The UK’s pipeline for renewable energy projects could mitigate 90% of job losses caused by COVID-19 and help deliver the government’s ‘levelling up’ agenda. That is according to a recent report from consultancy EY-Parthenon, which outlines how the UK’s £108bn “visible pipeline” of investible renewable energy projects could create 625,000 jobs.

30th July 2021

Read more

Billions of people worldwide have been unable to access safe drinking water and sanitation in their homes during the COVID-19 pandemic, according to a progress report from the World Health Organisation focusing on the UN’s sixth Sustainable Development Goal (SDG 6) – to “ensure availability and sustainable management of water and sanitation for all by 2030”.

30th July 2021

Read more

The oil and gas industry is set to burn through its allocated carbon budget 13 years early unless decisive action is taken immediately, new analysis has found.

22nd July 2021

Read more

The UK will no longer use unabated coal to generate electricity from October 2024, one year earlier than originally planned, the Department for Business, Energy & Industrial Strategy has announced.

2nd July 2021

Read more

Media enquires

Looking for an expert to speak at an event or comment on an item in the news?

Find an expert