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Joined: Jan 20, 2022
Last seen: May 6, 2026

Topics: 16 / Replies: 3158

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RE: Solis inverters S6-EH1P: pros and cons and battery options

My point is that the communication between the BMS unit(s) and the inverter must fail safe under all circumstances. The capability of the comms syst...

3 months ago

Forum

Energy Storage

RE: Reliable, easy to use home battery options

I haven't seen any HV storage product offered with 72v per module, although it's not an unreasonable figure.That would use a BMS capable of supporting...

3 months ago

Forum

Energy Storage

RE: Renewables & Heat Pumps in the News

Ah, yes. The 'problem' here is that home efficiency (EPC and SAP ratings) are determined by the Building Regulations. There have been (yet more) d...

4 months ago

Forum

Renewables News

RE: Reliable, easy to use home battery options

For regulatory purposes in UK, batteries which connect to inverter(s) at 75v DC and below may be installed by anyone. Above 75v the installation req...

4 months ago

Forum

Energy Storage

RE: Reliable, easy to use home battery options

I think you need to add up the kW rating for each of these appliances (incl a switch-on surge if there is one).That total then translates into how man...

4 months ago

Forum

Energy Storage

RE: Reliable, easy to use home battery options

Not necessarily.You need to compare storage battery products based on cost per kWh of capacity. When I checked a dozen brands about 5 years ago, the...

4 months ago

Forum

Energy Storage

RE: Is it normal to use power from the grid when running off the battery?

The relevant statute is this: The 'Declared Voltage' in GB is 230v RMS. So the permissible range is 216.4v – 253v. Equipment/appliances certif...

4 months ago

Forum

Energy Storage

RE: Is it normal to use power from the grid when running off the battery?

As you can see from the timeline graph, when your Solis inverter takes electricity from the grid to recharge a battery, it lowers the voltage...... he...

4 months ago

Forum

Energy Storage

RE: Is it normal to use power from the grid when running off the battery?

Hah! I have monitors 'out on the grid' and you'd be surprised just how much variation there is between phases (voltage and current). It begs the q...

4 months ago

Forum

Energy Storage

RE: Our ASHP design and installation journey

I agree with you. I have both in-screen UFH and pipework installed between joists of suspended floors. In my experience they behave differently, w...

4 months ago

Forum