Didn't I hear that the rules may change to prohibit batteries over a certain size within premises? Someone pointed out that would make it difficult to put your EV in the garage
Chris
Didn't I hear that the rules may change to prohibit batteries over a certain size within premises? Someone pointed out that would make it difficult to put your EV in the garage
Chris
Based on the notional averages. The average domestic electric usage is
2,700kWh/year the average domestic usage of gas is 11,700kWh. A house switching from gas central heating to a ASHP running at a high COP would be using an additional 3,000kWh/year. Add an EV at 5 miles per kWh and 5k miles/year and that's another 1000 kWh/yearThe average household may go from around 2700kWh/year to 6,700kWh/year, so a bit more than 40%.
It may be higher than x2+ as ASHP may not have a COP of 4 for some periods and many households have more than one car. With central heating usually only fully operational for the colder months a yearly average may be misleading. Winter months current average electric usage = 225kWh/month, in future approx 1000kWh/month. This a 4x the current demand.
If you want to stop people heating their homes with gas/oil etc, the average household consumption is going to at least double. Now add an EV rather than a ICE vehicle and again you need extra.
The risk of liFePo battery causing the fire may be lower but its not too safe if it is in a house fire.
the battery, involved with my solar panels, is mountef on the ouside of the house. It was a "two man lift" - I have no ideal how it would become a loft fitment.
If someone stored the energy equivalent of 8 jerry can gallons of petrol of an ICE car under their house stairs, I imagine an insurance assessor, after a fire, would more than comment about it.
No question of domestic storage supporting the grid other than drawing less than hitherto.
If only. England would save a fortune and the scottish economy would collapse....
Again you need to cost the solution - hydro in scotland plus long lines to deliver it, against the benefits.
The worst thing for localised grids is of course renewable energy.
Where does the 8 jerry cans come into this? That's about 30 litres of petrol, a 10kWh battery has the energy of about 1 litre of petrol and with a lithium phosphate battery the electrolyte is not flammable, unlike the ones in laptops and phones.
Yes if some catastrophe causes it to suddenly release all its energy there will be heat evolved and things nearby like wiring could burn .
In my case it sits in an outhouse separate from the living space by a 9" brick wall.
Statement or question Tim?
During energy saving events it is possible, and done, to discharge the home battery for an hour at peak time and earn money for the export at an enhanced rate.
Two men + muscles.
Tim
If my house is already well alight, the battery is the least of my worries.
Tim
My home insurers were entirely unconcerned by my house battery in my loft.
Tim
be installed in voids, roof spaces, or lofts ...
or within 1 meter of a window or a exterior door.
They may be now.....
Prohibited Locations: Recommended, batteries should not be installed in:
Rooms intended for sleeping. Protected escape routes (including landings, staircases, and corridors). Firefighting lobbies, shafts, or staircases. Storage cupboards, enclosures, or spaces opening into sleeping rooms. Outdoors within 1 meter of escape routes, windows, doors, or ventilation ports (unless in a suitable enclosure). Voids, roof spaces, or lofts. Cellars or basements without outside access.
Source PAS 63100:2024
Free from BSI although it seems to want user/password
or
As I understand it, a recommendation, not a rule. You can still have one installed in your loft if you want.
Tim
Surely that depends upon if the home to grid feed is intelligent.
AIUI, home batteries could provide grid stability. Not saying they do, just that they could.
They were aware of the location of my battery and I spoke to them after the new recommendations.
Tim
I think it's more strongly worded than that ...
6.5.5 Batteries shall not be installed in any of the following locationsA-F blah, blah G voids, roof spaces or lofts
In MoSCoW grading where does "shall not" fit between "should not" and "must not"?
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