Solar: Export Octopus 15p Rest 1p /kwhr ? Does the grid want this energy ?

NigeWick

Otisregrets said:

How does octopus finance work on this if no others ?   Does anybody actually get 15p/kwhr during day time ? 

I was on Flux and the rates varies during the day. Highest (over 20p?) between 16:00 and 19:00. They just account for the payment in the next bill.

As to the battery, a lot safer than an ICE vehicle in the garage.

sheenas

Heedtheadvice said:

thevilla said:

"Sleep with a volatile lithium battery in the house ?"

I wouldn't buy one of those.  Get a standard commercial battery offering.

You probably already do 'sleep' with a Lithium battery in the house maybe several......

With regards batteries and inverters the BSI best practices is to install them outside and not in the loft or house. In a fire they can be very dangerous, due to the size. I had a mobile phone catch fire and that was scary imagine a large solar battery or inverter. 

thevilla

sheenas said:

Heedtheadvice said:

thevilla said:

"Sleep with a volatile lithium battery in the house ?"

I wouldn't buy one of those.  Get a standard commercial battery offering.

You probably already do 'sleep' with a Lithium battery in the house maybe several......

With regards batteries and inverters the BSI best practices is to install them outside and not in the loft or house. In a fire they can be very dangerous, due to the size. I had a mobile phone catch fire and that was scary imagine a large solar battery or inverter. 

China is enforcing a no fire, no explosion standard next year. CATL already have batteries which meet it apparently.

If battery fires in domestic storage were a significant issue I'm sure the Telegraph would be all over it.  Phones have never had the best battery management and can't be compared really.

QrizB

OP on this thread is not a big replier, it seems!

michaels

You would think there would be long term tariffs on offer to support investment in batteries and heat pumps.

Qyburn

michaels said:

You would think there would be long term tariffs on offer to support investment in batteries and heat pumps.

Electricity has been set up as a competitive market, the sort of subsidy you're suggesting would need to come from somewhere if these tariffs aren't profitable.

QrizB

michaels said:

You would think there would be long term tariffs on offer to support investment in batteries and heat pumps.

Domestic (demand-side) solar PV and storage batteries don't currently require tariff support, people happily fit them without subsidy. Heat pump installation is already subsidised, and once installed it's price-competitive with mains gas. No need for preferential tariffs.

michaels

Qyburn said:

michaels said:

You would think there would be long term tariffs on offer to support investment in batteries and heat pumps.

Electricity has been set up as a competitive market, the sort of subsidy you're suggesting would need to come from somewhere if these tariffs aren't profitable.

Not asking for subsidy, just a long term (5-10 year) fix so that a sensible investment decision can be made.

QrizB

michaels said:

Qyburn said:

michaels said:

You would think there would be long term tariffs on offer to support investment in batteries and heat pumps.

Electricity has been set up as a competitive market, the sort of subsidy you're suggesting would need to come from somewhere if these tariffs aren't profitable.

Not asking for subsidy, just a long term (5-10 year) fix so that a sensible investment decision can be made.

I think the gas market only looks three years ahead. I'd be surprised if the electricity market was much longer than that.

I've seen three year fixes on offer, so that ties in.

And say for example that one of the big energy companies offered a ten year electric fix at 25p/kWh, increasing annually by CPI. Would anyone sign up to it? If they did sign up, would they then complain bitterly in say three years time if prices had fallen back to 15p? How large would the exit fees have to be, to cover the energy supplier's costs in purchasing power that far in advance? And what if the account holder dies, or wants to move house? Ten years is a long time, the average person doesn't spend that long in a property.

Magnitio

sheenas said:

Heedtheadvice said:

thevilla said:

"Sleep with a volatile lithium battery in the house ?"

I wouldn't buy one of those.  Get a standard commercial battery offering.

You probably already do 'sleep' with a Lithium battery in the house maybe several......

With regards batteries and inverters the BSI best practices is to install them outside and not in the loft or house. In a fire they can be very dangerous, due to the size. I had a mobile phone catch fire and that was scary imagine a large solar battery or inverter. 

Most batteries in mobile phones, laptops, electric bikes etc. use chemistries that are selected based on good energy density (i.e. to make them light) and these are often more susceptible to catching fire if damaged.

Most home batteries don't need to be especially light. Longevity and low fire risk are more important, so they are typically LFP. They are heavy, which is why there is a greater risk associated with them being in the loft in the event of a fire.