Interesting all-in one portable power solution from Costco

[HarryML7]

Don't move to Spain then our house has a 3kw incoming supply.

For temporary use ,switch off incoming mains and back feed through any socket.same as you would using a generator.
Permanent use ,install an automatic changeover switch.

back feed through any socket, of as it commonly known a suicide socket!

 

[McLouis]

I wouldnt have it in my van. It would store in the garage. 10 mins top to set up.
I did look at the solar , house battery option, but at current electricity prices, it would be a 15-20 year break even point.

Not sure that equates.... Octopus have a tariff that last year had 100 days with price at - 2p and 168 days at 2.5p or less for 2-3 hrs per night to charge the battery. Don't even need solar. Just don't use grid between 1600 and 1900 it's ~100p a unit.

 

[Howard B]

Not sure that equates.... Octopus have a tariff that last year had 100 days with price at - 2p and 168 days at 2.5p or less for 2-3 hrs per night to charge the battery. Don't even need solar. Just don't use grid between 1600 and 1900 it's ~100p a unit.

Ok here's my simplistic explanation how I came to that.
I worked out my payback based on my experience owning a 4kwh PV/ solar system and 16kwh of battery storage in our previous house. We could download cheap leccy for 4 hours per night using Octopus Go. Our last house has a South facing roof whereas our current one is West facing so less efficient for PV panels.

The last 12 months we were in the house we paid @£400 ( +standing charges) for the electric that we downloaded from the grid in addition to the PV/solar we generated and used in the home. We used between 10-12kwh per day. Two thirds of our download was at at the cheap rate at 7p/ kwh and a the other third at 48p/kwh (mainly during the winter months).

If I base the cost of leccy for our new house at a similar amount of usage the cost would come in at @ £750 ( + standing charges). We exported 1343 kwh back to the grid which did generate some income. Not sure of the rates now, but it was only about 8 or 9p/ kwh.
So as a rough estimate, we could be @£450-£550 PA better off at todays rates if we spent £10K plus on PV/ solar and storage. Hence the 15-20 years payback.

However, my investments gave a 10% return over the past few years. So by not shelling out £10k installing PV/ solar, the £10K is likely to generate an additional £1000 income PA.

I appreciate that there are lots of variables regarding tariffs/ usage and cost of energy will increase / my investments may crash, but for me the investment in PV/solar and storage on this house doesn't make financial sense.

I will however look at something which will provide backup in the event of a power cut as per the OP post.

 

[Guigsy]

Ok here's my simplistic explanation how I came to that.
I worked out my payback based on my experience owning a 4kwh PV/ solar system and 16kwh of battery storage in our previous house. We could download cheap leccy for 4 hours per night using Octopus Go. Our last house has a South facing roof whereas our current one is West facing so less efficient for PV panels.

The last 12 months we were in the house we paid @£400 ( +standing charges) for the electric that we downloaded from the grid in addition to the PV/solar we generated and used in the home. We used between 10-12kwh per day. Two thirds of our download was at at the cheap rate at 7p/ kwh and a the other third at 48p/kwh (mainly during the winter months).

If I base the cost of leccy for our new house at a similar amount of usage the cost would come in at @ £750 ( + standing charges). We exported 1343 kwh back to the grid which did generate some income. Not sure of the rates now, but it was only about 8 or 9p/ kwh.
So as a rough estimate, we could be @£450-£550 PA better off at todays rates if we spent £10K plus on PV/ solar and storage. Hence the 15-20 years payback.

However, my investments gave a 10% return over the past few years. So by not shelling out £10k installing PV/ solar, the £10K is likely to generate an additional £1000 income PA.

I appreciate that there are lots of variables regarding tariffs/ usage and cost of energy will increase / my investments may crash, but for me the investment in PV/solar and storage on this house doesn't make financial sense.

I will however look at something which will provide backup in the event of a power cut as per the OP post.

Minor point: the battery-solar payback will be ~£500 per year, but will presumably increase with inflation. To keep the share return the same inflation adjusted value each year, you have to deduct the amount to cover inflation. So payback will be a bit less than 10%. Probably nearer 7%.

 

[Howard B]

Minor point: the battery-solar payback will be ~£500 per year, but will presumably increase with inflation. To keep the share return the same inflation adjusted value each year, you have to deduct the amount to cover inflation. So payback will be a bit less than 10%. Probably nearer 7%.

I did say it was a simplistic view. Still doesnt make the investment in PV & storage worth it for me at the present time.

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[Sewdhull]

3000W Off-Grid Inverter | Pure Sine Wave | 60A Controller

Upgrade to a 3000W pure sine wave inverter & 60A controller. Enjoy off-grid power with clean, reliable energy. Peak power: 6000W.

uk.eco-worthy.com

I keep hanging my nose over this with some solar (domestic type @ 60 to 70GBP for 400W or so) and life batteries for a PVC. Could add an additional inverter if I decide to go nearly all electric.