5.18 kWp PV systems (3.68 E/W & 1.5 E).
Solar iBoost+ to two immersion heaters on 350L thermal store.
100% composted food waste
Mini orchard planted and vegetable allotment created.
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Fuel Cell Boilers - Thoughts?
Comments
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This thread has re-ignited my interest in this technology. I just need to ponder whether the issue about excess heat in summer is really a show stopper and whether the inclusion of a large Tesla style battery would allow us to go off the electrical grid completely (except perhaps for export of excess electricity).1
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We are big hot water users so no excess heat problem for us so I am hoping that the new govt green scheme might make this make a lot of sense come the autumn, especially as we currently get 26p/unit for exports under a v2g trial. Hopefully an extra kw of export would not be enough for the DNO to kybosh the idea.Pile_o_stone said:This thread has re-ignited my interest in this technology. I just need to ponder whether the issue about excess heat in summer is really a show stopper and whether the inclusion of a large Tesla style battery would allow us to go off the electrical grid completely (except perhaps for export of excess electricity).
I think....1 -
If you go ahead with it, please let us know. It'd be a fascinating thread.michaels said:
We are big hot water users so no excess heat problem for us so I am hoping that the new govt green scheme might make this make a lot of sense come the autumn, especially as we currently get 26p/unit for exports under a v2g trial. Hopefully an extra kw of export would not be enough for the DNO to kybosh the idea.Pile_o_stone said:This thread has re-ignited my interest in this technology. I just need to ponder whether the issue about excess heat in summer is really a show stopper and whether the inclusion of a large Tesla style battery would allow us to go off the electrical grid completely (except perhaps for export of excess electricity).5.18 kWp PV systems (3.68 E/W & 1.5 E).
Solar iBoost+ to two immersion heaters on 350L thermal store.
100% composted food waste
Mini orchard planted and vegetable allotment created.1 -
Thought I would resucitate this thread as it gets a mention on Electrek
https://electrek.co/2025/12/20/the-backup-battery-choice-you-didnt-know-you-had-natural-gas-fuel-cell/
Seems very odd that electricity from gas powered CCGT (60% efficient) costs 4x as much as gas per kwh whereas having a home natural gas fuel cell could give 1 electricity kwh for the cost of 2.7kwh of gas (Viessmann vitovalor2) - even before considering that the fuel cell can also provide useful heat.
Perhaps combined with a battery (and solar for the summer months when the extra heat would be wasted) one could abandon electricity and switch to single fuel gas living?!I think....0
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