Last seen: Oct 27, 2023
About Me
Engineer, working on ideas/projects for homes to be powered primarily by solar and wind.
PV installed in 2012 by Simon Smith (sa-energy.co.uk), excellent install & kit (SMA inverter).
Moved to Devon 2016, SolarEdge PV installed (SunDial Solar), great install, despite cross gabled slated roof, working well. No mains gas, using very expensive LPG from shared tank.
EV owner and evangelist, or should that just be EV-angelist.
Using the MyEnergi "characters" (Harvi, Hubbi, Eddi & Zappi), Zappi is a good PV-aware controllable EV charger and Eddi heats the hot water via an immersion heater before giving power back to the grid (saving on gas!).
Future projects:
1/ Lower electricity bill. Aim: 90%+ solar usage: battery storage (Growatt AC charger/inverter with DIY battery built with guidance from @Transparent) combined with Octopus GO tariff
2/ Comfort during power cuts: use Growatt UPS/off-grid facility: gas boiler control/pump, lights, microwave & kettle, WiFi, laptop, phone charging.
3/ Eliminate gas bill. Explore changing over from gas boiler to ASHP
4/ Explore quiet helical VAWT for winter power generation
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Latest Posts
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RE: If a heat pump can only heat DHW to 50C then what? Issue with 18KW Heliotherm heat pump
Hi, Nothing yet. I've asked customer to measure flow...
By errmm , 7 hours ago
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RE: High Temp Heat Pumps for fast warm-up of house
I don't know exactly how long it takes to heat up (and ...
By JamesPa , 8 hours ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump
OK. What Im seeing looks fairly normal TBH: 1 start ...
By JamesPa , 9 hours ago
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RE: Vaillant Tech Support Flagged Low DT: UFH Return Cold, Suspected Zero Flow
@editor thanks for the tips which I will try before cal...
By DavidB , 10 hours ago
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RE: Daikin 6kw setup with Dixell controller
@jamespa Many thanks for your reply, a very detailed an...
By CraigH , 10 hours ago
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RE: Exploring the role of alternative clean heating solutions - Government Consultation
Despite reservations, I found some time to respond to t...
By Rusty , 11 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@crankplus, nope, still not, and I've followed up with ...
By Mars , 11 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@agentgeorge Probably, but temperature change at -10 ha...
By AndrewJ , 12 hours ago
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RE: External wall insulation - your experience
To be clear, my experience was very positive. The journ...
By Batpred , 14 hours ago
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@foxesfan Re: ‘Servicing’ as @editor has covered in his...
By Toodles , 14 hours ago
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RE: A Smarter Smart Controller from Homely?
@benson No idea why mine doesn’t work, all I see on ...
By Papahuhu , 14 hours ago
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RE: Battery sizing - How low can you go!
It seems I am seeing something similar to what you do, ...
By Batpred , 15 hours ago
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RE: Gaslighting in the heat pump industry – has anyone else experienced this?
Don’t know if this is relevant to this thread, but my A...
By Gruff2001 , 16 hours ago
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RE: Bosch CS5800i 5kW - Experience So Far
@majordennisbloodnok While getting Home Assistant runni...
By Steelbadger , 1 day ago
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RE: MCS - BS EN 12831-1:2017 – Heat Loss Survey
Since May 2025 it no longer a requirement in England to...
By JamesPa , 1 day ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handel @jancold Manufacturer: Daikin Model: E...
By Jancold , 1 day ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@harriworld it was roughly 3am for an hour as that’s ...
By L2jad , 2 days ago
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RE: Hoped for improvements not being realised on my Mitsubishi heat pump
I have been wondering that myself. The fact is that, ...
By JamesPa , 2 days ago
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RE: Filtering Tap Water – Share Your Setup for Cleaner, Better-Tasting Water
I remember when I was in my early 20s I was introduced ...
By Majordennisbloodnok , 2 days ago
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RE: Setback savings - fact or fiction?
But if it is recorded an an integer, which it seems it ...
By cathodeRay , 2 days ago

