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| Thread ID: 86949 | 2008-02-02 19:36:00 | Nuclear Power Documentary on TV One last night | somebody (208) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 636781 | 2008-02-13 00:13:00 | www.metaefficient.com www.metaefficient.com very good to see:) That’s enough to power about 5,000 households of four in Europe.... That’s 1776 American homes on one wind turbine.:lol: |
motorbyclist (188) | ||
| 636782 | 2008-02-13 00:45:00 | efficiency has little to do with dollars, it is energy out divided by energy in I suppose it all depends on if you wish to consider the energy and expenditure put in to creating the power plant, the costs of upkeep, the non availability of power during wet and cold times, and so many other factors that make solar a little less than ideal. It's appears i was looking at the efficiency from an economic view, which bypasses much politics,and PC rubbish.Apart from the pollution angles, which are more in the manufacturing with solar, i feel economic factors is what *should* decide if a project is viable or not. Unfortunately people have romantic ideas that they wouldn't dream of doing themselves at home cause it cost far far too much for stuff all result. I'm measuring "result" in terms of output that can actually power anything greater than a few LEDs in the garden. To simply look at how much of the available energy is captured once built seems to me an approach that is just a little too narrow to be practical, but eve then solar doesn't measure up at all well, unless used directly for heating, typically heating water. However, as a means of heating water and thus reducing demand on other sources it's terribly underutilised! |
personthingy (1670) | ||
| 636783 | 2008-02-13 00:48:00 | However, as a means of heating water and thus reducing demand on other sources it's terribly underutilised! My parents put solar and a wetback in when they built their new house, about 7 years ago. They haven't paid a cent on water heating since. Solar in summer, decommission the solar in winter so the pipes don't freeze and screw the system over, then use the fire/wetback in winter. Only I believe there is now some law against putting a wetback in? Stupid councils. Could someone verify that? |
wratterus (105) | ||
| 636784 | 2008-02-13 00:58:00 | Only I believe there is now some law against putting a wetback in? Stupid councils. Could someone verify that?Aparently they are a no no becauase the lower the temp in the firebox, and therefore increase the smoke in an otherwise exceptable unit. IIRC they are banned outright in CHCH. I fully support the actions of those who install them tho. My secondry job is demolision, and we can not give away skiploads of dry firewood, thus forcing us to dump them.and meanwhile electricity is being generated at peak times by resources that are finite...... O yes, that's right.. green policy.. use up the fossil fuels first, then let people freeze as power becomes something we can no longer afford to heat with.... Hmmmmmmm |
personthingy (1670) | ||
| 636785 | 2008-02-13 00:59:00 | My parents put solar and a wetback in when they built their new house, about 7 years ago. They haven't paid a cent on water heating since. Solar in summer, decommission the solar in winter so the pipes don't freeze and screw the system over, then use the fire/wetback in winter. Only I believe there is now some law against putting a wetback in? Stupid councils. Could someone verify that? You can't put a high pressure system in with a wetback. |
Cicero (40) | ||
| 636786 | 2008-02-13 01:00:00 | Aparently they are a no no becauase the lower the temp in the firebox, and therefore increase the smoke in an otherwise exceptable unit. IIRC completely the are banned outright in CHCH. I fully support the actions of those who install them tho. Hmmmmmmm Its rather silly. If people used common sense and didn't burn wet wood with the fire damped right down, it would be all good. |
wratterus (105) | ||
| 636787 | 2008-02-13 01:01:00 | You can't put a high pressure system in with a wetback. You can...it just requires a bit of mucking around with interesting one-way valves. Parents have a high roof, so no problem for water pressure. Could be an issue in town houses though. |
wratterus (105) | ||
| 636788 | 2008-02-13 01:06:00 | You can...it just requires a bit of mucking around with interesting one-way valves. Parents have a high roof, so no problem for water pressure. Could be an issue in town houses though. I was quoting plumber.,I will refer them to you in future. |
Cicero (40) | ||
| 636789 | 2008-02-13 01:08:00 | I was quoting plumber.,I will refer them to you in future. Perhaps 'can't' install now means there has been some law passed against it, wouldn't surprise me, for 'safety' reasons or something. I know when parents put theirs in they had the option to go high pressure, but opted against it, for water and power saving. Please do listen to the plumber though...don't refer them to me. |
wratterus (105) | ||
| 636790 | 2008-02-13 01:10:00 | i had an incredibly simple solar water heating concept in an old house of mine . There was 2 holding tanks sitting just under the peak of the roof . They got so hot up there that the water was warm before it got to the electric cylinders . We had 2 cylinders, 180 ltres each . One feeding the next as a sort of preheat and this provided water for up to 9 residence . In summer the first cylinder got switched off . We just didn't need the preheat to keep up . At the peak of summer the water from the holding tank, which supplied cold water for the shower was warm enough that for some no hot needed to be added . And think this was CH CH, imaging what could be done in AK using this system that is merely a rearrangement of traditional plumbing? |
personthingy (1670) | ||
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