Posts tagged solar
Posts tagged solar
Although panel prices have plummeted in the past five years, installling a rooftop system in the U.S. costs twice as much as it does in Germany. (via Join the Solar Freedom Cause to Reduce Rooftop Installation Costs by 50% | megcichon)
I think we (in the US) are doing something wrong.
… but Germany’s a lot lower. We don’t need cheaper panels, we need better selling/permitting/installation processes.
Solar costs continue to drop (the blended cost is up due to a change in mix)
Here’s output from 5 in-town solar systems for a single day (which day is a parameter on the underlying Google spreadsheet, which I haven’t published yet). This is but a small fraction of the installations in town; these are ones that upload data to pvoutput.org. I’m working on feeds for other, bigger systems, plus New England grid (ISO-NE) demand. The latter’s relevant for assessing how well solar helps shave demand peaks.
I’m not sure if the graph below is static or will update with the spreadsheet; we’ll see-
Brief article on the net metering debate-
I’m not a huge Walmart fan but I applaud their rooftop solar projects.
This is what I’ve been banging the drums about: solar provides cheap peak load power! (via Solar PV Reducing Price of Electricity in Germany - CleanTechnica)
I found this little nugget in a comment regarding MA’s net metering rules. Nearly 60 MW of solar in the works or planned for CVEC (Cape & Vineyard Electric Cooperative)? Not bad…
Palo Alto Feed-In-Tariff for PV: The city will pay $0.14 per kilowatt-hour for 20-year contracts. (via Feed-In Tariff for PV in Palo Alto, Calif. Imminent : Greentech Media)
32MW Long Island Solar Farm (by LIPowerAuthority)
Why do people compare the cost of electricity produced by a coal plant with that produced by solar PV? It’s like comparing the cost of ethanol, FOB the distillery, with that of a beer ordered at a bar.
Same content, sort of, but different attributes.
In case I’m not being clear: coal-powered power plants produce baseload electricity that has to be transported, sometimes quite far, to demand. Baseload electricity is relatively cheap, because there’s relatively little demand in the middle of the night, and transmission costs can be significant. Distributed solar (up to 5 MW or so) produces electricity at the right time, more or less, relative to peak demand (at least in New England, peak demand events occur on hot, sunny, summer days), and can be sited relatively close to loads, minimizing (or avoiding) transmission costs. For the case of the municipal utility that I know most about, the premium associated with local solar generation, vs. buying from the grid, amounts to between a nickel and a dime per kWh. With solar prices dropping, solar is very close to what I’ll call relative grid parity (where “relative” takes into account the solar premium).
$2.20 euro per watt, installed??? Crikey, give me muni borrowing (~3-4%) and some available land, and I can print money.
According to the BSW, solar power contributes approximately three percent of the German electricity supply, with a goal of 10 percent by 2020. (via Germany Installed More Than 2 GW of Solar in December : Greentech Media)
Wow- 3% is not a large number, but it’s not a small number, either!