SteamyTea

I just got half a dozen Trick or Treaters in one. Just about to top is up with soil.

Interesting about the plant room size. Always worth baring in mind that 'things' in it may need to be replaced, or stuff added. As for window size, how often have I said that people put too much glazing in.

Welcome. It is all saints day tomorrow.

A bad builder is called a builder.

Saved a few quid already.

I hope you have your CIL exemption in place (if it is needed in your area).

Worth reading though Part F. https://assets.publishing.service.gov.uk/media/61deba42d3bf7f054fcc243d/ADF1.pdf It is not hard, just tedious, like most regulations.

I think you need to spend a few hours researching basic electrical and heating systems. Then you will find out that what you are proposing is not viable.

AKA a butplug.

If 3 business men meet in a room and fix higher prices, it is called a cartel, and illegal. If 3 similar software systems do the same, it is a cartel.

No. Mainly because there is not a simple formula i.e. y = mx+c or y = m x expx I have a suspicion that the ToU tariffs are to enable the retail energy companies to dump over purchased energy more than doing the customers a favour.

Yes, it is why we disconnect you.

That's OK. Basically, the amount of low and medium CO2 generation is fixed, so marginal increases are dealt with burning gas. Gas has a volatile price. Also, because we don't have enough spare RE generation, and very little storage, in the scheme if things (pumped storage is to do with load balancing), we rely on demand predictions. It is those demand predictions that set the price, and because they are predictions, some margin has to be built in. When it goes wrong, and we have to quickly add generation, what actually happens is that the 'hot spinning reserved' come on line. It is those reserves that cost a fortune i.e. £500+/MWh. When the prediction is the other way, and there is over production, it is often the RE that gets switched off, and that has to be paid for, often at double the going rate i.e. the strike price. It may seem strange to switch off the low CO2 generation, but it works out cheaper because it is easy to switch of say 10, 2 MW turbines, in different places to balance the local grids, that switch off a 100 MW CCGT and switch on a few small diesel generators to make up the 80 MW. It is more common complicated than that in reality as other factors have to be taken into account. One more of the pervers factors us the way that the half hour bidding auctions have elevated some RE generation that is still based in gas prices. While this does not affect new RE generation, the legacy stuff is still generating, and because they have a lot of data, and market experience, they can decide not to bid on the day ahead market, but hope to pick up some balancing capacity, which pays better. While our wholesale market has generally been very good at keeping the price down, it has caused, at times, higher CO2 generation overall. So getting back to storage, local or large scale, at the moment, it probably increases overall CO2 grid intensity. This will change in time with the introduction of more RE, but not for a decade or so. It has been a long time since I looked at all this, but I seem to remember that grid frequency, which many people think can be used to control local storage i.e. elevated frequency, start storing, lower frequency, start delivering, does not work. The Grid Operator, predicts about 4 hours in advance the short term needs, and allows the frequency to rise and fall a bit. It is similar to slightly raising your house temperature because you know the night will be extra cold. The whole grid balancing is a (expletive deleted)ing marvel and we should really not tinker with it too much to save a few quid on our bills. The security of supply is globally second to none. We don't want our hospitals, and traffic lights losing power at 6PM, so we can earn £2. It is one of the reasons that these ToU tariff trials are small scale, it will be very hard to integrate in a large scale.

That is the conclusion. The grid gets more sooty as we use more, really down to not enough low carbon generation, but that is changing, so price stability will cost me along.

Right Some quick chart plotting against demand. The main thing I can glean from this very quick analysis is that two things happen. CO2 is lower when generation is lower i.e. <33000 GW and that charging batteries when demand is lower will increase demand, and therefore increase CO2. (I may have got the axis title wrong and actually mean MW not GW, shall have to check later, like tomorrow, as it is past my bed time)

I still don't have a TV, or a 'sound system' I got rid of the TV in 1994. If it was a modern one that has a 1 W standby power draw, then I have saved about 300 kWh.

Right. As usual, with statistics, life is never easy. This is a correlation chart that plots price and generation. I have grouped the generation by CO2, Coal, Gas, Oil are high CO2, Biomass and Pumped are medium CO2, and Nuclear, Wind, Solar and Hydro as low CO2. The data runs from Jan 1st 2020 to 26th October 2024. More to follow

I am having a look at things at the moment. Different data sets, Gridwatch and ONS system prices, which is sadly just daily prices.

How far back in time have you looked? I think the problem may be because the 'grid' is set up with 4 priorities: Security of supply Long Term Delivery Contracts Low Carbon Priority Predictions/Balancing None of those sit well with each other these days.

The GWP is low at 3. As it is propane, no F Gas certificate is needed.

Unlike a pregnant woman, you can unscrew a tap (or a light bulb).

Would it not be easier to add some extra battery storage and just charge then to 80% before diverting. A lot of it does depend on how much you discharge the battery. If you usually only use 20% of the capacity, then no need to, but if you often run it down to 20% of capacity, then a charging routine is needed.

Is that the best way to charge a battery, the last 15% or so takes a long time and can possible shorted the battery life.

Welcome. There is loads about PV on here, just do Google Site Searching as the built in forum search is hopeless. At 60° N it is more about hours than intensity.

Stillsons