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SteamyTea last won the day on February 15

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About SteamyTea

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  1. @Stones You going to close this one as it is similar?
  2. I will ignore the K in kW. But temperatures should really be in K, not °k or anything similar. But to get a bit statistical about it, the savings come come from the difference in the heating degree days, not the relative readings. This is why a small change in internal temperature can make a large difference at the higher end of the scale.
  3. @Tennentslager Can you copy and paste the article as it behind a paywall.
  5. I don't think we stack up too well on some of then, even today, and a few decades ago were had horrendous work practices. Seabed dredging for minerals probably has the lowest long term environmental impact, mines around here are still polluting the place, or take constant maintenance, 30+ years after they closed. You hardly see an 'old miner' these days, most have died prematurely, usually from asbestos. St. Austell still has a lung cancer problem which they think is linked to the clay works. Some of them are still producing.
  6. Around the amount I use for everything except DHW and Space Heating.
  7. And they stopped using the ITC, which was just a cartel designed to keep the supply of tin under control and the price high. Also, river delta dredging became profitable as the technology improved. Cornwall also did not invest in modern mining methods, assuming the hard rock mining was the only viable technique. I think Chile led the way in mining during the late 80's and 90's. South Crofty (our last working tin mine) was on TV the other night, saying that it is going to reopen. Been hearing that all the time I have lived here.
  8. Or substation. Keeping with the car theme, how about Kona, and just hope no one from Portugal sees it.
  9. Around 17.5% of the installed prices. So assuming a mean installed price of £7,000, and around 1 million installs, that will be £1.225bn. So not far out.
  10. And the government, under Cameron, response was 'The Big Lunch'. There were more people looking at big waves in Porthleven than at the Big Lunch, says it all.
  11. But it has enabled 2.7 GWp of domestic (up to 4 kW) installed capacity in the last 10 years. That is out of a total of 12.95 GWp. That compares favourably with our nuclear program, which has installed nothing new and is only going to add a couple of GWp. So if one used the 1 MWh generation for each 1 kWp installed, all PV now generates ~13 TWh/year Hinkley could produce about 16.6 TWh/year at 95% of full capacity. There is about 950,000 sub 4 kW in the UK, so if the premium was £1,500, that is ~£1.425 bn. I cannot find a figure for how much Hinkley has cost so far, but i will guess it is more than the MCS premium.
  12. Food, in real terms, is a lot cheaper calorie for calorie, but we now tend to eat out a lot more, so household spend is similar.
  13. I am dubious of this sort of tank. We have well understood about the properties of heat for a couple of hundred years now. If this was a brilliant solution, we would all have them. And anyway, my 200 quid E7 tank has 2 immersion heaters, one in the bottom, one in the top.
  14. Really down to the cost of different technologies/solutions. You may find that overall, a simple water cylinder heated directly with an immersion heater is cheapest. There may be slightly higher thermal losses, but these can be reduced with strategically placed insulation. Air2Air heating may be worth considering if you fit an 'oversized' MVHR system. Not quite as messy as digging up a floor to add insulation and UFH.