Home showcasing a range of solutions with emphasis on local sourcing and comfort improvements. Solar generates ‘free’ hot water for 75% of the year and accounts for over half the electricity consumption.
Adults: 2 Children: 0
Construction: Solid stone or brick
The range of measures installed in this 1920s three-bed semi are a wonderful illustration of how retrofitting energy-saving measures can be incorprorated into other home decoration improvements, for more budget friendly results.
There are some impressive insulation measures – solid wall, underfloor and loft – resulting in significant heat loss reduction. This was highlighted in their recent CHEESE thermal imaging energy-loss survey: “As we have only done solid wall insulation on part of the house (the rest is still waiting) it showed just what a difference it makes, particularly compared with the house next door, of the same construction without insulation”.
Energy is generated by solar PV as well as solar thermal, both of which have had a dramatic impact on bills; the solar thermal panels supply ‘free’ hot water for the majority of the year.
Combined with low energy appliances and lifestyles, the solar PV installation has delivered a considerable reduction in annual imported electricity consumption, now averaging 1,900 kWh per year, as compared to the 3,100kWh used by average the UK household. ²
The couple have also added a range of eco features such as a green roof on the shed and rainwater storage.
Alex and Frances decided that retrofitting energy-saving measures and installing energy-producing technologies to their home was a great way to reduce their carbon footprint and make their home more comfortable.
They soon realised that they could incorporate ‘eco-measures’ alongside other home decoration improvements.
The concept of bringing these two together was key to the success of the project, avoiding unnecessary disruption in the home. They also considered the financial implications before deciding to update their home.
They began with energy saving measures to reduce their energy use and make their home more comfortable. Frances commented “the solid wall insulation has transformed our use of this house, making cold damp rooms warm and comfortable”.
Two major motivating factors for our retrofit were to make our home more comfortable and to reduce our exposure to future energy price rises.Homeowner, 2015
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How this house performs
The chart for 2019 case studies shows the household’s annual energy consumption and generation data compared to Ofgem’s Typical Domestic Consumption Values - industry standard values for the annual gas and electricity usage of a typical domestic consumer. For more info click here.
Alex and Frances’ PV array almost covers all their electricity use, the remaining is supplied by Bristol Energy, on their Bristol Energy 2 Year Fix Green Issue 3 tariff, a 100% renewable supplier, which therefore has no CO2 associated with it.
Their gas consumption is less than the UK average, which shows their efforts in reducing usage, as their house is larger than the average. They have reached the potential of their house according to their EPC.
¹ Annual average over last 8 years. ² Based on Ofgem’s Typical Domestic Consumption Values - industry standard values for the annual gas and electricity usage of a typical domestic consumer.
Alex and Frances have recently upgraded to modern A+-rated windows. They plan to continue insulating their home as and when they decorate, installing solid wall insulation in the remaining rooms.
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