Open Homes April 2015 - Home no. 10 (Peveril Solar House)

The tenth home taking part in this year's spring time Open Homes event is on Peveril Drive in West Bridgford.

Peveril Solar House is a 2000's detached house. It is fairly standard in its original construction, but is far from ordinary in the renewable technologies employed. It is the UK's first entirely solar heated house, using a combination of power generation and underground thermal storage. 

Eco-features on display include:

• Ground source heat pump drawing energy from vertical borehole
• 6 sqm of innovative self-built sunboxes burying thermal energy 16 storeys underground
• PV panel array producing more electrical energy than the annual heating requirement
• Passive house style extension in SIPS panel construction
• New - innovative composting and vertical farming systems
• Solar dehydrator (will be on show before it gets moved to an organic farm)
• Electrical car charging point

The home owner has developed the sun boxes as a research, design and build project, and monitored their impact, and has lectured about it, home and abroad. This is a fantastic opportunity to learn more about what renewables can achieve.
Other features that may be of interest is the disability adaptation of the house - sliding doors, wheel chair accessible bathroom, disable designed kitchen, platform elevator. 

This home is open on Saturday 3rd May at 11am

To book your free place, click here.

(https://www.eventbrite.co.uk/e/twb-open-homes-2015-peveril-solar-house-tickets-16303006732)

Open Homes May 2014 - House number 2 of 7

A little closer to home, in East Leake, is our second open home, Greenstone.

It's a zero carbon barn conversion with a long list of features. And since this home last opened to the public, there have been a few additions to maximise use of the elecctricity generated. If you have not been before, it is well worth a visit!

To book your free place for the 10am or 2pm tour on the 10th May 2014, click here.

·         Super insulated 9” solid brick walls (oldest barn built in 1860)

·         Factory made Insulated roof panels (SIPS)

·         Super insulated floor slab with wet under floor heating (ground and first floor)

·         Extensive use of thermal mass in floors, internal walls and ceiling

·         Itho Whole house ventilation with heat recovery 90% efficiency

·         Triple glazed timber windows with aluminium outer skin (Rationel)

·         Draft lobby with highly insulated doors (Rationel)

·         Air tight construction with measured value of 2.3m3/m2@50Pa pressure

·         Thermal store feed by oversized Solar Hot water panels and heat pump for space heating and domestic hot water

·         10kw roof mounted Solar PV system

·         20kw ground mounted Solar PV system

·         Powerrouter 5kw battery storage system providing solar produced electricity at night and back up electricity in the event of a power cut

·         Two intelligent immersion switches using spare solar generated electricity to heat hot water in 400 and 300L thermal stores

·         Ground sourced heat Pump (GHP) providing space heating and some of the domestic hot water

·         Electric car powered from the solar PV panels

·         Experimental Solar PVT panels providing Earth charging energy from solar panels to improve the efficiency of the GSHP

·         Recently installed Web based energy monitoring equipment measuring electrical use, solar power generated, appliance consumption, heat generation

·         Rain water recycling from underground tank to provide water for toilet flushing and garden irrigation

·         Presence and daylight sensor light control in common areas of the house

·         100% low energy lighting and low energy appliances

·         Reserve wood pellet 5kw stove in case of power failure

Interesting facts/results:

·         It works!

·         It has met its target energy consumption with 3 years’ worth of all power consumption (electricity) 10,500kwh/year

·         The house is now a net exporter of  Solar generated electricity providing a very useful additional income stream

·         It  also provides free electricity to charge 2 or more electric cars the first of which is doing really well (Volt)

·         The family loves it because it is comfortable and pleasant to live in all year round

Radiators for Heat Pump

11 Jan 2012: DNC writes: People often ask me how they could use a Heat Pump without tearing the floor up and laying an expensive underfloor heating system. Some people just like something warm to hug or to stand with one's back to on a cold day, or put a damp coat onto after being caught in the rain.  Underfloor heating just doesn't have this comfort (except for cats who love it!) Underfloor heating is invisible, and sometimes, if you can't see it, you don't feel it! If you have thick carpets, then expect even more delay before warmth comes through. For Retrofit, Underfloor heating is just about too challenging for anybody to take up.

I happened across this company, JAGA, who claim to have a whole range of suitable low temperature radiators, some for surface mounting, some recessed or flush with the floor.
 http://www.jaga.co.uk/products/catalogue/top-performers
Jaga have a number of products, but their 'Performers' range of radiators are suitable for the lower heating temperature from a heat pump. They even include one that can be a cooler if you have a reverse cycle HP.
    These are the first ones I have found that I would quite like! Jaga use the expression 'DBE' (dynamic boost effect) which is very quietly running fan assistance, but I would expect these to be virtually inaudible compared to MVHR. They would all need a power supply, but this can be provided in the same skirting duct or alongside whatever the pipes run through.

So, take heart. If you are planning to try a heat pump, then these radiators are the ideal way to avoid the disruption or the impossibility of installing Underfloor heating, and which could use your existing pipework for your previous central heating layout.