Feed In Tariff?

RodTungsten

Member
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175
I understand that there are power-knowledgeable people on here (not HP but Watts) so I wonder if my feed in tariff rate will increase now that the value of my kWh to the grid has increased upwards of 200%?
 

RodTungsten

Member
Messages
175
Well ~5% comes nowhere close to the increase in resale value and I guess that there are no exceptional circumstance clauses ( not read all the offgem guff).

The battery storage business case looks more attractive but costly.

Does anyone have experience of EV charge points which can be coupled to a current clamp to only charge when the sun shines? There are a few on the market now and could be worth a punt with payback under 3 years
 

midlifecrisis

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13,258
There's some very reasonable tariffs for ev car charging overnight. EVs can be programmed only to charge at certain times, so charge your car, doing the washing and dishwasher on at the same time.
 

RodTungsten

Member
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175
We have that with Octopus kWh at 5p overnight so we charge, heat water and the floors but that cost could quadruple or more in May. If you know of better options pray tell.
 

midlifecrisis

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We have that with Octopus kWh at 5p overnight so we charge, heat water and the floors but that cost could quadruple or more in May. If you know of better options pray tell.
I don't, sorry. I was with Avro till they went pop. Now on the capped rate, but like you my PVs have only gone up 5% and barely scrape a 'profit' (in V out). I have heard that energy prices will go down in 2023 but that was before a closet homosexual in the Kremlin kicked off.
 

midlifecrisis

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13,258
Or you can use a comparison website but due to reasons above, they'll all say stick with the one you have or go to the capped rate..
 

GeoffCapes

Centenary Club
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13,422
We have that with Octopus kWh at 5p overnight so we charge, heat water and the floors but that cost could quadruple or more in May. If you know of better options pray tell.
5p is a good rate. The 'standard' rate is 3.8p.

I'm waiting for a quote to oversize PV on my roof with battery storage so I can effectively not have to buy electricity from the grid and store the excess during the day to use at night. With energy prices rising the ROI should be more palatable than previously. But the cost of battery storage is likely to be the sticking point.
 

midlifecrisis

Member
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13,258
5p is a good rate. The 'standard' rate is 3.8p.

I'm waiting for a quote to oversize PV on my roof with battery storage so I can effectively not have to buy electricity from the grid and store the excess during the day to use at night. With energy prices rising the ROI should be more palatable than previously. But the cost of battery storage is likely to be the sticking point.
Back of a f4g packet sums:

About £11k for a tesla powerwall, but there's no incentive so add another £10k for your PVs for a 4kW systemn. Cream off 5p/kWh fot FiT and you'll probably generate 3500kWh per year so that's £175 a year back. If you're completely self sufficient, 3,500kWh @ 30p/kWh is £1050 a year. You'll also pay 30p a day standing charge which is £110 a year.

So pay off in twenty years....J and S might get the benefit of it by then.
 
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Ebenezer

Member
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3,452
Back of a f4g packet sums:

About £11k for a tesla powerwall, but there's no incentive so add another £10k for your PVs for a 4kW systemn. Cream off 5p/kWh fot FiT and you'll probably generate 3500kWh per year so that's £175 a year back. If you're completely self sufficient, 3,500kWh @ 30p/kWh is £1050 a year. You'll also pay 30p a day standing charge which is £110 a year.

So pay off in twenty years....J and S might get the benefit of it by then.
So how expensive does energy need to get before this is worthwhile? eg ROI in < 5years
Eb
 

GeoffCapes

Centenary Club
Messages
13,422
Back of a f4g packet sums:

About £11k for a tesla powerwall, but there's no incentive so add another £10k for your PVs for a 4kW systemn. Cream off 5p/kWh fot FiT and you'll probably generate 3500kWh per year so that's £175 a year back. If you're completely self sufficient, 3,500kWh @ 30p/kWh is £1050 a year. You'll also pay 30p a day standing charge which is £110 a year.

So pay off in twenty years....J and S might get the benefit of it by then.
Battery storage for my house for what I'm looking at is around 4-5k, no need to go to Tesla for something overly expensive that does the same as a 'non brand name project'.

I was looking at circa 7-8KW to cover the winter months when generation is lower, yes I will be feeding the grid in the summer (maybe, aircon uses a lot of energy).

When I get the quote I'll let you know.

We spend about £1400 a year on electricity, so if we become independent of the grid (other than the odd occasion) then I estimate a £12k outlay, if you account for energy cost inflation, the system should pay for itself in around 6-7 years.
 

RodTungsten

Member
Messages
175
Research and info from our PV and charge point installer: if you want to maximise your use of output (from any microgeneration source) to charge a car or possibly other consumption then Zappi looks to be an interesting solution. Uses a wireless CT to signal excess amps to the charge point and can be set in various modes -eco+ Will only charge when the sun is shining(>1.4 kW). Says it has other ways of diverting those precious electrons.
 

RodTungsten

Member
Messages
175
Solar EV Charging: a Feynman-style approximation for the business case.

Spookily just had our FIT statement showing that our PV generated 2.6MWh last calendar year paying us around £150.00.

Assuming with an intelligent charger we could put around half of this - 1mWh into the car (~4500 miles) then assuming that this would ordinarily cost us a blended peak/off peak 15p per kWh in future (optimistic) then we would save £1000x.15 - £150.00. Ignoring the FIT of £140 which is paying off the PV then payback of a clever charge point could be 4-5 years; earlier if kWh get dearer. I also get a new clever bit of kit to play with and with which to annoy the Wee Woman.
 
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midlifecrisis

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13,258
Mega = M or 1,000,000 the Unit
m = milli or 1,000th the unit

I'm now going to get some superglue for Catman's head.

Oh and it was Fermi not Feynman who was known for his ability to make good approximate calculations...