- Thread starter Screwdriver
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brewdexta
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Solar Roof | Tesla
Solar Roof replaces your existing roof and brings it to life with beautiful solar tiles that can power your home for decades with the energy you produce.
Screwdriver
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Solar Roof | Tesla
Solar Roof replaces your existing roof and brings it to life with beautiful solar tiles that can power your home for decades with the energy you produce.www.tesla.com
Damn that does look good. Willing to bet it's pretty damned decent engineering too. The website is awesome.
How did this chap become one of the richest men on the planet...
slim_boy_fat
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Solar Roof | Tesla
Solar Roof replaces your existing roof and brings it to life with beautiful solar tiles that can power your home for decades with the energy you produce.
When I looked at that linked site, I heard Lyod Grossman's voice in my head saying "Who lives...in a house like this"
brewdexta
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not done it yet
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I have micro inverters for my house-roof PV panels. Gets rid of any shading problems and each panel can be monitored for output by another extra module, if required by the householder or the DNO, etc.
That system, while a little more expensive than a string system has further advantages in that should one inverter fail, the rest keep going and the DC voltages involved are limited to that of each panel, not the whole string (which is hundreds a volts and keeps firemen away from the danger should there ever be the need of them (hopefully not, but I expect those high DC voltages incur extra premiums to the house insures.
Apparently the ones I have are more reliable than the typical string inverter, too.
That system, while a little more expensive than a string system has further advantages in that should one inverter fail, the rest keep going and the DC voltages involved are limited to that of each panel, not the whole string (which is hundreds a volts and keeps firemen away from the danger should there ever be the need of them (hopefully not, but I expect those high DC voltages incur extra premiums to the house insures.
Apparently the ones I have are more reliable than the typical string inverter, too.
magnet
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My father flew onto vancouver Island in the late 50s early 60s to work in the logging camps. At that time it was almost unbroken forest when he flew out they had turned the area into barren rock.A documentary years ago showed that the lumber companies ran the Canadian government.
It showed a road many miles long through the beautiful forest.
It also showed that the trees were only out to about a hundred yards from the road, beyond that was clear cut as far as the eye could see.
It looked like a desert of stumps.
The trees they replanted all died because they needed the protection of older trees.
Photography campaign shows the grim aftermath of logging in Canada's fragile forests
Ancient Forest Alliance’s project underscores the preventions that are needed to protect old-growth trees in areas such as the Caycuse watershedwww.theguardian.com
The trees they cut now were the stuff the burned back then to get the old growth out **** poles as they were known.
When I was there in the 90s I visited cathedral Grove a stand of old growth trees it's apt to call it cathedral it was quite an experience.
It's hard to believe what went on back then but they were the times they lived in.
My dad has regrets about what he was part of but natural resources were seen as infinite back then. How times have changed....... For the better!
brewdexta
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I did look at micro-inverters, would have been good for the site I have used for the small 4kW installation I'm building, for the shading reasons you mentions.. The kit I wanted to use for this wasn't available, long lead times, so settled for 2 strings of MPPT on a standard hybrid inverter, a little cheaper too. The idea is to bang this in as fast as possible to take the edge off the current energy price rises and get some experience before looking at a bigger installation.
I have a plot in mind that will provide space for up to about 50 panels, so potentially around 20kW. But it will take time to get planning, and build it, also involves larger batteries and possibly heat pumps, 3 phase gird tie etc. etc. It's probably going to be a project for 2 or 3 years hence. The idea is to put some kind of pergola/car port type structure over this concreted area, we are still in the mulling it over phase, may never happen. The area is part of the houses curtilage so should be easier for planning. We will probably go under 50 panels so we can make the design of the structure a bit more attractive.
Morrisman
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And back then we Brits were dumping shiploads of rubbish out at sea, rather than land fill or burning it, thinking the oceans were endless and the stuff would just 'disappear'. We have come a long way since those days, but there's still a long haul ahead.
When I first started working offshore 30 years ago we threw all waste over the side of our ships, even pumped old oil out the side, any daily rubbish went into the sea too. I was based in Asia and my employer didn't seem to think we had to abide by Marpol regulations. As time passed they were dragged into line and pretty soon we were banned from throwing almost anything over the side.
Unfortunately that's not enough to make a change, third world countries still see the oceans as their private sewer and refuse disposal unit.
Food waste and human waste is fine. The fish thrive on it
Morrisman
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A certain distance offshore you can, but there's some pretty strict limits in many countries waters.Food waste and human waste is fine. The fish thrive on it
Working offshore Brazil we had to have 5 different trash cans in every department on the ship, all types of waste had to be bagged separately, paper, cardboard, metal, plastic etc.
Food waste had to be kept on board in chest freezers, specially installed for the job, then it was all shipped off every few weeks by a supply boat. All very efficient, they Brazilians are really getting into the ecology program....
Except all the dozens of waste bags were dropped into a single open top container that we were told by supply boat captain all went to the same landfill...... and the frozen food waste would be thrown over the side long before they got to land....
Very much like the whole western world is tackling the climate change issue: just going though the motions, being seen to be doing something...
James1979
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I got told by the bin man that it all goes to landfill regardless of what colour bin you put it out in.A certain distance offshore you can, but there's some pretty strict limits in many countries waters.
Working offshore Brazil we had to have 5 different trash cans in every department on the ship, all types of waste had to be bagged separately, paper, cardboard, metal, plastic etc.
Food waste had to be kept on board in chest freezers, specially installed for the job, then it was all shipped off every few weeks by a supply boat. All very efficient, they Brazilians are really getting into the ecology program....
Except all the dozens of waste bags were dropped into a single open top container that we were told by supply boat captain all went to the same landfill...... and the frozen food waste would be thrown over the side long before they got to land....
Very much like the whole western world is tackling the climate change issue: just going though the motions, being seen to be doing something...
Not sure it’s true but I’d imagine he would know
addjunkie
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The waste was similar in angola all segregated totick company eco boxes, then into same landfill at massive costA certain distance offshore you can, but there's some pretty strict limits in many countries waters.
Working offshore Brazil we had to have 5 different trash cans in every department on the ship, all types of waste had to be bagged separately, paper, cardboard, metal, plastic etc.
Food waste had to be kept on board in chest freezers, specially installed for the job, then it was all shipped off every few weeks by a supply boat. All very efficient, they Brazilians are really getting into the ecology program....
Except all the dozens of waste bags were dropped into a single open top container that we were told by supply boat captain all went to the same landfill...... and the frozen food waste would be thrown over the side long before they got to land....
Very much like the whole western world is tackling the climate change issue: just going though the motions, being seen to be doing something...
8ob
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I was reliably informed that the rollout of recycling bins in some area’s were premature and the contents went to landfill. It was more to get folk into the recycling mindset while recycling facilities were put into place, that said it didn’t stop them dishing out the fines to folk for using the wrong bins
Bob
Bob
Morrisman
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Our Staffordshire county council reckon the green bin stuff all gets burned in a power station, nothing goes to landfill.
Not sure about the blue bin, metal, glass etc.
addjunkie
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Thats probably true as all the brash ( forest waste from harvesting trees)goes to bio mass plants as does much of what is cut and chipper into 20 ton lorries, or composted. Though the power rations are resricted by how much ash they produce, waste suppliers are heavily penalised if there is too much soil mixed in with it all as it increases the ash content too high.
All this green renewable stuff isnt as green as it first meets the eye there is always a tradeoff somewhere, no matter what we do, oil will still be required for somethings!
This I happened across in some old files is interesting
James1979
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Many councils still send stuff in containers to third World countries.
Quick enough to fine people though.
The hypocrisy is almost criminal literally.
We used to pay an EU landfill tax. Now Swansea council pay a Welsh Assembly landfill tax instead
