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[Sticky] Home energy storage & battery register

 
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Energy Storage
Last Post by vzm56n 1 week ago
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TechnoGeek
 TechnoGeek
(@technogeek)
Estimable Member Member
Joined: 3 years ago
Posts: 169
13/02/2026 7:32 am  

@toodles definitely sounds like similar aims. I was kind of forced into the batteries/solar because of the EV. You cannot get a tariff to adequately cover both ASHP and EV. I need to charge EV overnight but then was loosing the savings with ASHP during the day due to the higher day rate. The EV needs 30 - 35Kwh and ASHP on a typical 6C day needs about 26Kwh

If I did this renewables project again I would do the solar and batteries first to get a revenue stream going then add the other tech over time

Regards


5 Bedroom House in Cambridgeshire, double glazing, 300mm loft insulation and cavity wall insulation
Design temperature 21C @ OAT -2C = 10.2Kw heat loss, deltaT = 8 degrees
Bivalent system containing:
12Kw Samsung High Temperature Quiet (Gen 6) heat pump
26Kw Grant Blue Flame Oil Boiler
4.1Kw Solar Panel Array
34Kwh GivEnergy Stackable Battery System


   
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 3 years ago
Posts: 2632
13/02/2026 8:43 am  

@technogeek We don’t drive any vehicles and with our poor sight (my wife is partially sighted and I am registered blind), it is better to keep death off the roads! Cosy seems to be the best deal without any EV’s but at least, with 3, 3 and 2 hours each day at the cheapest rates, the scheme can work well with a battery charged at those times. Regards, Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
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TechnoGeek
 TechnoGeek
(@technogeek)
Estimable Member Member
Joined: 3 years ago
Posts: 169
13/02/2026 12:10 pm  

@toodles thankfully we have a range of tariffs to meet most people's needs. I am just one of those edge cases so require a little extra technology to make it financially viable.

The Missus has to replace her lease car in May and thankfully has chosen an Octopus Intelligent Go compatible model this time so happy days! 🤣

Regards 


5 Bedroom House in Cambridgeshire, double glazing, 300mm loft insulation and cavity wall insulation
Design temperature 21C @ OAT -2C = 10.2Kw heat loss, deltaT = 8 degrees
Bivalent system containing:
12Kw Samsung High Temperature Quiet (Gen 6) heat pump
26Kw Grant Blue Flame Oil Boiler
4.1Kw Solar Panel Array
34Kwh GivEnergy Stackable Battery System


   
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 JohnnyB
(@johnnyb)
Estimable Member Member
Joined: 1 year ago
Posts: 112
16/02/2026 12:28 am  

I've only just seen this thread, although I've only had eveything connected up for about 6 weeks.  

I have a Fogstar 16kWh battery, 7.6kWp solar array and a Solis inverter.

So far it has all worked well and is nearly our electric bill already, but a 20 kWh battery would allow us to run all day from the battery even in a wet grey February.



   
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Batpred
 Batpred
(@batpred)
Prominent Member Member
Joined: 1 year ago
Posts: 745
16/02/2026 9:36 am  

Posted by: @technogeek
↑

If I did this renewables project again I would do the solar and batteries first to get a revenue stream going then add the other tech over time

We managed to get a revenue stream just with the battery..

 


8kW Solis S6-EH1P8K-L-PLUS hybrid inverter; G99: 8kw export; 16kWh Seplos Fogstar battery; Ohme Home Pro EV charger; 100Amp head, HA lab on mini PC


   
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Jancold
 Jancold
(@jancold)
Estimable Member Member
Joined: 3 years ago
Posts: 171
16/02/2026 12:40 pm  

I have Solis 8Kw inverter and 2 * 16Kwh Fogstar batteries. No solar as yet. I have been on Intelligent Octopus Go since January this year and though almost doubling my Kwh use from last year my January bill was halved, and no gas of course.


Daikin 6Kw ASHP.
MG4 EV, Solis 8KW inverter, 32KWh battery
1926 Semi with loft and wall cavity insulation, all radiator.


   
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 Wino99999
(@wino99999)
Active Member Member
Joined: 4 years ago
Posts: 5
05/03/2026 11:28 pm  

Hanchu ESS - Home-ESS-LV9.4K (9.4kWh) 

Plus 1 for my neighbour as we both had one fitted as part of Solar Together initiative. I don't find Hanchu support very good, documentation is ok, but their weather adaption I haven't really been able to get my head around although on paper it should work but is tied into your specific tariff, hence it's a manual process atm. Any help or suggestions gratefully received!


MG4 EV and Zappi, Hanchu 3.8kw Inverter 9.4KWh battery, 4kw Solar installed Jan 2012, Aurora One 3.8kW Solar PV inverter.
1974 4 Bed Detached with loft and wall cavity insulation, all radiator.


   
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 vzm56n
(@vzm56n)
New Member Member
Joined: 1 week ago
Posts: 3
06/03/2026 6:22 pm  

3 X Pylontech US2000 Plus @ 2.4 Kw each = 7.2 Kw

SoFar ME3000 SP AC coupled Storage Convertor

Solar Edge SE4000-16A

14 x LG295NIC-G3 @ 295w with micro-invertors

Installed 2017



   
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