Electricity costs.

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ALAN/ALAN D

Electricity costs.

#1

Post by ALAN/ALAN D »

Without Government Energy Price Guarantee.

Standing Charge 49.68p
Day rate 70.50p
Night rate 53.03p
Is it worth looking around.
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Electricity costs.

#2

Post by Oldgreybeard »

ALAN/ALAN D wrote: Wed Sep 28, 2022 10:58 am Without Government Energy Price Guarantee.

Standing Charge 49.68p
Day rate 70.50p
Night rate 53.03p
Is it worth looking around.
From the EON website a few minutes ago, before the government price cap:
Day unit rate 33.68 p/kWh
Night unit rate 17.26 p/kWh
Standing charge 43.48 p/day
I've seen some tariffs cheaper, with the night rate down around 15p/kWh before the cap. All should be clearer over the next few says as all the suppliers announce their tariffs as from 1st October with the government price cap included.

Well worth just sitting tight at the moment, as I anticipate a flurry of new tariff prices coming out over the next couple of days.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
kla456
Posts: 55
Joined: Tue Aug 03, 2021 10:42 am

Re: Electricity costs.

#3

Post by kla456 »

Just got Octopus Go @ 7.5p and 40p, fixed for 12 months.
John_S
Posts: 378
Joined: Wed Jun 02, 2021 10:03 am
Location: West London

Re: Electricity costs.

#4

Post by John_S »

kla456 wrote: Thu Sep 29, 2022 1:21 am Just got Octopus Go @ 7.5p and 40p, fixed for 12 months.
I renewed mine a couple of weeks ago at the same rate effective mid October when the existing fixed term expires.

I was worried that by fixing in advance I might have missed out from the freeze. I use at least 50% at the low rate so.
ALAN/ALAN D

Re: Electricity costs.

#5

Post by ALAN/ALAN D »

Looked at Octopus Go.
They want you to have an electric car to charge. :mrgreen:
Is there any way round this. I want to charge Batteries if required.
AE-NMidlands
Posts: 2079
Joined: Wed Jun 02, 2021 6:10 pm

Re: Electricity costs.

#6

Post by AE-NMidlands »

ALAN/ALAN D wrote: Thu Sep 29, 2022 5:13 pm Looked at Octopus Go.
They want you to have an electric car to charge. :mrgreen:
Is there any way round this. I want to charge Batteries if required.
buy an old car - even if you never drive it!
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: Electricity costs.

#7

Post by Oldgreybeard »

Go is an OK tariff, but there are limitations that need to be considered. I physically couldn't charge our car, heat our hot water, charge our house batteries in winter and run our overnight heating on Go, or the slightly dearer 5 hour Go Faster tariff. 4, or 5 hours just wasn't long enough for our worst case needs, TBH, We struggle a bit to stay under the maximum power we can pull from the supply with the 7 hours of Economy 7.

It is worth looking at the total demand during the cheap slot and seeing if you can stay under the limit yet still get enough energy to avoid using peak rate electricity. As an example, we have a 100A fused supply, with the maximum UK single phase domestic rating of 15kVA (so about 65A continuous, maximum). The car charger draws 32Afor much of the night at times, the water heating draws another 13A for two to two and half hours, the home battery charging would draw another 13A (if I let it) for around 5 to 6 hours, the house background demand is only about 1A, but the water pump and sewage pump (both come on for maybe 20 minutes once every four nights) draw about 8A between them. The heat pump runs at night to heat up the ground floor concrete "storage heater", and that tends to draw around 4A for around 6 to 7 hours.

That gives us a total of 75A, way over the 65A maximum we are permitted to draw from the supply. My solution is to set the time switches so that the home battery charging and the hot water heating are offset from each other by two and half hours, and to reduce the home battery charging to about 11A. Doing that works for us with a 7 hour cheap rate slot, as the hot water rarely takes longer than two and a half hours to charge, so staggering things keeps us close to the maximum allowable we can pull from the mains supply.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
AE-NMidlands
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Joined: Wed Jun 02, 2021 6:10 pm

Re: Electricity costs.

#8

Post by AE-NMidlands »

but do you have to be charging the car to get the tarriff while you use it for other things? (see post #6)
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
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nowty
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Location: South Coast

Re: Electricity costs.

#9

Post by nowty »

AE-NMidlands wrote: Thu Sep 29, 2022 6:28 pm but do you have to be charging the car to get the tariff while you use it for other things?
No.
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 27MWh generated
6 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 520 m3
AE-NMidlands
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Joined: Wed Jun 02, 2021 6:10 pm

Re: Electricity costs.

#10

Post by AE-NMidlands »

nowty wrote: Thu Sep 29, 2022 6:30 pm
AE-NMidlands wrote: Thu Sep 29, 2022 6:28 pm but do you have to be charging the car to get the tariff while you use it for other things?
No.
There is the answer for Alan/AlanD and OGB then.
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
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