A Tesla Model 3 has a worse life-cycle carbon footprint than a similar-sized Mercedes diesel car, the renowned German think tank, IFO, has found. It warns that electric vehicles are "no panacea" against climate change.
When the IFO released its findings…Continue
Added by Willem Post on April 25, 2019 at 8:00pm — No Comments
Most people, including myself, really have no clear idea regarding the various subsidies required to attract capital for the build-outs of solar systems. Relatively few insiders, such as some legislators, the Vermont Department of Public Service and the Vermont Public Utilities Commission, likely are intimately familiar with all the detailed ins and outs.
The Vermont Public Utilities Commission administers the Vermont Standard Offer Program that promotes and subsidizes the…Continue
Added by Willem Post on April 20, 2019 at 5:00am — No Comments
PV Solar Output Variability During variable Cloudy Weather
Clouds are the main reason PV solar generation experiences intermittency (excluding the normal night-time disappearance).
PV solar generation can rapidly decrease by 60% within seconds, due to a cloud passing over the solar panels causing a reduction in solar insolation.
The time taken for the cloud to pass is dependent upon cloud height, sun elevation and wind speed. These factors need…Continue
Added by Willem Post on April 17, 2019 at 10:00am — 3 Comments
The Hornsdale Power Reserve, HPR, battery system, 100 MW/129 MWh, in Australia, was the largest battery in the world in 2017. It is located near a 315-MW, French-owned wind turbine plant.
In 2017, various capital costs of the system were mentioned. About 1.5 y later, documents revealed the turnkey capital cost was about 56 million euros, about US$ 66 million, or 66 million/129,000 = $512/kWh; this was a low price, because Tesla was eager to obtain the…Continue
Added by Willem Post on April 9, 2019 at 11:30am — 1 Comment
In view of the grave concerns raised by 5 to 17 year old children on the impact of CO2 on the Earth’s climate, the government will introduce legislation to address the most pressing issue of our times, namely CO2 emissions and the ensuing climate mayhem that they cause. See Appendix 1.
CO2 has risen to record levels from 0.0280% (pre-industrial) to 0.0405% today. See Appendix 2.
The policy, inspired by the GND, has four main aspects, for…Continue
Added by Willem Post on April 3, 2019 at 10:30am — 7 Comments
ABSTRACT OF ARTICLE
In this article it was assumed all New England fossil and nuclear plants would be closed down, and the 2017 capacities, MW, of wind and solar would be increased 22 times, to offset the electricity shortfall of the closed plants. It was assumed the load (electricity fed to grid) on the NE grid increased from about 123 TWh/y in 2018 to about 175 TWh/y in 2050, mostly due to electric vehicles and heat pumps. See tables 1 and…Continue
Added by Willem Post on April 3, 2019 at 6:00am — 6 Comments
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