Here is a larger snippet from the report, as first published by Pilkington’s technical oracle (not real title) Phil Brown on LinkedIn:
8.7% of the overall energy used in UK homes can be saved if energy efficient glazing is installed and solar energy in summer is better controlled.
This is the finding from ‘Glazing in buildings – reducing energy use’, a report issued by the National Energy Foundation Glazing Supply Chain Group.
In energy and CO2 terms, the 8.7% headline figure equates to 48,625 GWh/year and 8.7 Mt CO2/year. This is approximately 5 times the total electrical energy generated in a year by the Sizewell B nuclear power station.
For non-domestic buildings, the corresponding figures are 6.8% and 22,017 GWh/year of energy saved if energy efficient glazing is installed.
When you read that, that 8.7% figure starts to look even bigger.
But a report like this does high light the importance energy efficient glazing has within the wider home improvements and green sectors. When people think about energy efficient measures, attention immediately turns to loft and cavity wall insulation, boilers and solar panels. For a number of reasons, windows and doors sit lower down on that list than they really should.
Encourage long term investment
I know why new windows and doors sit lower down the list. When it comes to cost, other than perhaps solar panels, windows cost the most. Making them a measure that cannot always be done quickly. Boilers and new insulation are a relatively quick fix and done at a much lesser cost than a house full of new windows.
But the benefits of new windows and doors, and not just on the energy efficiency front, should be being talked up, with home owners encouraged to look at new windows and doors as a good, long term investment for themselves and their property.
A saving of £200-£400 per year on energy bills in reality will mean it will take many years for new windows to pay for themselves. So lets be realistic and honest with home owners, they’re not going to get their money back all that quickly. But the other benefits of comfort, lower maintenance, better aesthetics and better security still make new windows and doors a quality investment for the home, as well as helping the UK to save on it’s energy foot print!