Would a small home battery system (2kwh), without any solar, help with household energy bill crisis

markin

Scotland im sure will be boasting of being 100% wind this night, 31/3

 

https://electricinsights.co.uk/#/dashboard?start=2022-03-31&&_k=mgf687

Still no cheap power on octopus agile tarrif.

https://www.energy-stats.uk/octopus-agile/

Thrugelmir

Sea_Shell said:

Maybe we all need to rig up a static bike* to a dynamo...we could get fit whilst powering the TV 😉

But then think how many calories we'd need to consume to provide us with the energy to power the bike...so we'd need to buy more pasta.

Cost benefit analysis anyone? 😉



*Other human powered machines are available

There was a programme on the TV some years back. Where a home was powered by cyclists. Even boiling a kettle required a huge amount of people power. A non starter. 

Section62

sabretoothtigger said:

MWT said:

PGammage said:

Dolor said:

Worth remembering that it is not just the kWh size of a battery that matters but also the kW output. Even with a Powerwall 2, the battery alone cannot sustain an electric oven when it is heating, and a 3kW kettle.

Fully understand that, this is not a put going off grid, it's about redistribution of the off-peak capacity to supplement peak.

First you need to have excess off-peak capacity, and right now, we don't.

As per the post earlier, we are currently burning gas to supply the overnight demand, hence the lack of low cost electricity at night.

Is that true nationally, off peak demand exceeds any capacity ?

The problem is with not enough cheap spare generating capacity in the off-peak, available reliably 365 days a year (that's the niche that coal once filled).

We could burn more gas off-peak, but generating expensive electricity to sell cheaply - as a tool to help people who've invested in batteries deal with the "household energy bill crisis" - isn't likely to bring bills down for everyone else.  And hence not a very popular or effective policy.

victor2

Section62 said:

sabretoothtigger said:

MWT said:

PGammage said:

Dolor said:

Worth remembering that it is not just the kWh size of a battery that matters but also the kW output. Even with a Powerwall 2, the battery alone cannot sustain an electric oven when it is heating, and a 3kW kettle.

Fully understand that, this is not a put going off grid, it's about redistribution of the off-peak capacity to supplement peak.

First you need to have excess off-peak capacity, and right now, we don't.

As per the post earlier, we are currently burning gas to supply the overnight demand, hence the lack of low cost electricity at night.

Is that true nationally, off peak demand exceeds any capacity ?

The problem is with not enough cheap spare generating capacity in the off-peak, available reliably 365 days a year (that's the niche that coal once filled).

We could burn more gas off-peak, but generating expensive electricity to sell cheaply - as a tool to help people who've invested in batteries deal with the "household energy bill crisis" - isn't likely to bring bills down for everyone else.  And hence not a very popular or effective policy.

And we've got the roll-out of electric vehicles requiring more "off-peak" electricity. Nuclear energy still looks like the best green (if you can call it that) way to meet the demand, but we haven't invested enough in that.

markin

Thrugelmir said:

Sea_Shell said:

Maybe we all need to rig up a static bike* to a dynamo...we could get fit whilst powering the TV 😉

But then think how many calories we'd need to consume to provide us with the energy to power the bike...so we'd need to buy more pasta.

Cost benefit analysis anyone? 😉



*Other human powered machines are available

There was a programme on the TV some years back. Where a home was powered by cyclists. Even boiling a kettle required a huge amount of people power. A non starter. 

Welcome to the Future, today.

https://imgur.com/gallery/xvfT81W

Section62

victor2 said:

Section62 said:

sabretoothtigger said:

MWT said:

PGammage said:

Dolor said:

Worth remembering that it is not just the kWh size of a battery that matters but also the kW output. Even with a Powerwall 2, the battery alone cannot sustain an electric oven when it is heating, and a 3kW kettle.

Fully understand that, this is not a put going off grid, it's about redistribution of the off-peak capacity to supplement peak.

First you need to have excess off-peak capacity, and right now, we don't.

As per the post earlier, we are currently burning gas to supply the overnight demand, hence the lack of low cost electricity at night.

Is that true nationally, off peak demand exceeds any capacity ?

The problem is with not enough cheap spare generating capacity in the off-peak, available reliably 365 days a year (that's the niche that coal once filled).

We could burn more gas off-peak, but generating expensive electricity to sell cheaply - as a tool to help people who've invested in batteries deal with the "household energy bill crisis" - isn't likely to bring bills down for everyone else.  And hence not a very popular or effective policy.

And we've got the roll-out of electric vehicles* requiring more "off-peak" electricity. Nuclear energy still looks like the best green (if you can call it that) way to meet the demand, but we haven't invested enough in that.

*And trains.