Home energy efficiency grants re-starting soon

The Green Deal Home Improvement Fund (worth up to £7,600) was launched in June and axed just 6 weeks later due to popular demand.

However, it has been announced today that the grant scheme will re-open before the end of November, with an additional £100million in the pot. So if you missed out last time, it's time to check it out again.

Update: Phase 2 of the grant scheme started in December 2014. Phase 3 is expected in March 2015.

https://www.gov.uk/government/news/an-additional-100-million-for-household-energy-efficiency

Whether the grant is as generous as previously (for example, offering up to £6,000 and later up to £4,000 towards the cost of External Wall Insulation), remains to be seen.

If you are considering various options to make your home warmer or to cut the energy bills, it is a very good idea to do your research and think it all through carefully. Maybe get some quotes. Then if the grant scheme does start up again, you are poised and ready to see whether it will help  you, and if so, to make the most of it!

There is a handy report about energy saving options from zero cost to high cost on this site, co-written by me and an architect who specialises in low energy buildings including refurbishments. Just go to the "HOBBS Report" on the second tab - it is free to download.

If you live in or near to West Bridgford, then there's local help at hand. With our Transition West Bridgford thermal imaging camera, we can now show you where heat is escaping from your home!

Tina (tinaholt@ecohousenet.co.uk / 07962 453037) uses the camera as part of a whole house assessment to highlight energy saving options which might be suitable in your home.

Thermal imaging

This time last year, a few lucky householders (those who put their homes forward as case studies in the HOBBS report) had thermal images taken of their homes.

Within the Eco House Group, many have expressed an interest in having this done and I promised that I would look into it. I've just had a trial run on my own home (see the blog for the full details), and I'll be emailing out to the Eco House Group when I have dates and details for those who would like their homes to be assessed in the same way (for a very reasonable fee to cover the cost).

If you are in or near West Bridgford and would like to join the Eco House Group email list, just email wbecohouses@gmail.com and ask to be included.

Air tightness testing

As part of the "Homes Behaving Badly" project, 4 local homes received air tightness testing. The results from these 4 case studies can be found in the HOBBS Report.

Two further case studies were tested by Midland Energy Services just last week, and the results are in!

The 1930's solid wall detached house (see HOBBS report) has undergone significant improvements to reduce energy use, and has achieved an air tightness figure of 7.44 m3/hr/m2 at 50 Pascals.

This is a respectable figure, given that the average new build must now achieve less than 10 m3/hr/m2 at 50 Pascals and most 1930's houses would be far more leaky than that! However, the owners have made a note of the locations where the test revealed draughts, and will be addressing those to improve the air tightness further.


The other case study to undergo an air tightness test last week was the 1950's solid wall detached house. This house is being refurbished to become an ultra-low energy home (to passivhaus refurbishment standard). It will receive a number of air tightness tests during the works, this being the first (preliminary) test with a result of 4.4 m3/hr/m2 at 50 Pascals. 


Following this test, the real air tightness work begins, including plastering of the walls and installation of air tightness tapes and membranes around windows, in the attic etc. This internal layer of air tightness will be the key factor in determining the eventual air tightness of this particular house. For this Passive House refurbishment, a figure of less than  1 m3/hr/m2 at 50 Pascals  is required (quite a challenge!)


It should be said - while the fabric of this 1950's house is being made extremely air tight, this does not mean that there won't be good ventilation. A ventilation system (Mechanical Ventilation with Heat Recovery, or MVHR) will be installed to deliver a constant supply of fresh air to the house, and extract stale air from kitchen and bathrooms continuously. Heat from the stale air will be transferred to the incoming fresh air via a highly efficient heat recovery unit. This kind of system becomes energy efficient in houses with an air tightness of ~3 m3/hr/m2 at 50 Pascals or lower.

Cheap ways to reduce heat loss through windows

Janet has just sent a photo of her newly-installed blinds. She installed them because she was concerned about heat rising behind the curtains. This way, even with the curtains open, a well-fitted blackout blind or thermal blind will reduce heat loss.

Alternatively, if the situation allows, why not double up on window coverings by combining curtains, blinds or shutters?

With a suitable window ledge or a small shelf below the curtains, heat from the back of the radiator goes into the room rather than up behind the curtains. This is even more effective if you put radiator panels behind the radiator to reduce loss of heat into the external wall.

For more ideas, have a look at the HOBBS report on this blog (2nd tab). You can download it for free, allowing you to click on the contents page to read one of the case studies or any other part of the report.

The HOBBS reports go live

As the Homes Behaving Badly project comes to an end, the suite of reports created as part of this project are now publicly available.

Click here to download the HOBBS Reports

(If you spot any errors, do tell us. We have found one so far.)

Sections 2 to 5 are specifically for householders, providing an introduction to energy efficiency in the home - from the free and low cost options to the medium and high cost options.

With separate sections devoted to houses of cavity wall construction, houses of solid wall construction and  rooms in the roof, there should be something useful here for a wide range of householders.

The case studies in Section 2 demonstrate the big savings that can be made through energy-saving habits and run-of-the-mill improvements to our homes.

For those who are interested, the case studies also illustrate what else can be done to turn an ordinary house into a low-energy home and how much effort and money might be required.

An overview of local housing stock and a summary of the HOBBS project as a whole can be found in Sections 6 and 7 of the HOBBS report.

We hope you find them useful!

Click here for Homes Behaving Badly final press release