And more bad news for those focusing on storing solar power in batteries – the new study does not believe battery storage will be economically feasible until the 2030s.
Saturday, August 31, 2013
Tuesday, August 27, 2013
Mr Fraser this week unveiled AGL's plans to proceed with two solar power plants costing $450 million for Broken Hill and Nyngan in western NSW. The 155-megawatt capacity will meet the power needs of about 50,000 homes, and be about 15 times bigger than Australia's largest plant.
In my view, the most cost-effective way to develop solar is with large-scale projects," Mr Fraser said. "You get the economies of scale.
Conventional wisdom supports Mr. Fraser's contention - data on the other hand tells a different story. $450 million for a 155 MW solar farm works out to $2.90 per watt. Solar Choice has the average unsubsidized price for 1.5 kW rooftop systems throughout Australia at $2796/kW. That price goes down to $2277/kW for 5 kW systems. It's rather remarkable that a 155 MW photoelectric solar farm that is 100,000 times larger than a modest 1.5 kW system would be more expensive on a unit price basis. To be fair I should point out that the solar farms are tracking plants so that accounts for part of the extra costs. That said, $2.90 per Watt is high even for a tracking plant.
Tuesday, August 20, 2013
Tuesday, August 13, 2013
Saturday, August 10, 2013
I was having my normal bank robbery dream when suddenly instead of bags of money there was an evil baby in pink overalls. We were in a motel room with a 10 foot wide hole cut in the floor and a dark pool of water 30 feet below. I grabbed the creepy baby and threw it in the motel cenote. It shrunk towards the water facing us the whole time. When it hit the water it splashed into a thousand new creepy babies in pink overalls. Then I woke up.
Friday, August 9, 2013
Since 1971 the United States, which has much more robust demographics than virtually any other advanced country, has had one year in which its fertility rate was high enough for natural population growth: all the rest of the, substantial, growth in the US’ population has been driven exclusively by immigration.
Thursday, August 8, 2013
And if I could add my own two bits, I think it’s time for Germany to start requiring private households to get involved in load management. There’s some low-hanging fruit to be had. A quick back-of-the-envelope calculation: assuming that Germany’s roughly 26 million households each have refrigerators consuming 50 watts on the average, that is more than 1.3 gigawatts of shiftable load, and people would not even notice it.
Thursday, August 1, 2013
Deutsche Bank said that although the market in Europe had contracted, at least one third of new, small to mid size projects were being developed without subsidies. Multi-megawatt projects were being built south of Rome for €90c/W. This was delivering electricity costs (LCOE – with 80 per cent self consumption) of around €80/MWh (€8c/kWh)