Induced atmospheric oscilltions

I didn’t say it was easy. ;-)

I do accept now that with the current recommendations you probably won’t find anyone prepared to do a new install in a loft.

Tim

Indeed they could.

But imagine 'your car wont go today: we had an unexpected lull in the wind last night'

I mean sure some people are in love with the GreenDream, but the vast majority just want a stable reliable grid to plug their SmartShit™ into.

And that means nookie with nukes

We will fix the batteries, eventually.

That's to give some idea what kind of money is behind batteries.

Paul

Also 'cellars or basements that have no access to the outside of the building'. Does that mean *direct* access? Or would access to outside via another room be OK?

I have not kept up on how this is done. My domestic roof is not well aligned for solar and the farm supply has no provision to export. (buying group)

I was curious how local power disconnections are managed safely.

I don't think it can be interpretted as anything other than 'must not'. Not the cleverest of wording though . . .

It's OK, Spike will be along in a minute to use it.

Whether it's solar, or a battery, to export it has to go via an inverter. If the inverter senses the grid has gone away, it shuts off to avoid killing the repair workers!

Some hybrid inverters can maintain supply from the battery to an isolated "internal" circuit, while shut off from the mains.

Never in the field of human engineering has do much money been poured into so many 'new technologies' with so little actual benefit...'

The physics of electrochemistry allows us to work out the theoretical maximum possible battery capacity per unit material..

It's not enough by a factor of ten.

Toyota might, in time get to a 450 mile 5 minute recharge battery, but that wont make windmills effective.

'should' has the implications of debts that are owed. Etymologically. It is the past tense of shall, but its meaning is more pure to its origin

must is *generally* used in a conditional sense. 'if you want X then you must do Y'

'Shall' is a more interesting and probably correct word.

"The word "shall" originates from the Old English word "sceal," which meant "I owe," "I must," or "I am obligated." It evolved from the Proto-Germanic *skul- and is related to other Germanic words expressing obligation or debt. Over time, its meaning *shifted to include the expression of simple futurity*"

I.e. no conditional, debt long since paid, it SHALL BE! No question.

For clarity I was thinking 30% to 40% *each* - but on reflection even that is probably not enough.

For example my space heating energy requirement in terms of raw kWh is 2 to 3 times my electrical consumption, Even an with ideal COP from a heatpump it would be a significant increase in electrical demand. (and that is before you worry about transport!)

Any idea how isolated the battery is from a nearby lightning discharge? Its common for everything "connected" ie switched on, standby or off, ends up having to be replaced and also the houuse wiring if a direct lightning strike. How safe is the battery in such a circumstance?

In contracts the words shall, should etc. are often explicitly defined as to their meaning within the contract.

Possibly more of a short balanced layman's guide

or

OK Andy. I was a bit puzzled by the *break before make* isolator mentioned up-thread.

Only required if you want your batteries to power your whole house in the event of a power cut. My hybrid inverter just supplies an isolated circuit not connected to the grid.

Just as with a generator, your system mustn’t be capable of feeding back into a dead grid supply.

Tim

Can't remember who mentioned that, they may have been referring to a manual changeover switch, where the connection to mains is broken before the connection to battery is made, probably with mechanical and electrical interlock using a contactor ... would be less convenient to have to go out and physically switch from mains to battery.

And still the average Euopean family car will have a range of 4 to 5 miles per kWh so how much energy would a charging station have to provide in 5 minutes. Add a bank of such charging stations in the same place....