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Friday, April 04, 2014

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

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