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The table shows the project cash flow of years 1 through 6.
Download the spreadsheet from the URL to see the other years.
Electricity generation in year 1 was 2200 x 8766 x 0.145 = 2,794 MWh.
Due to aging at 0.5%/y, it would be 2,780 MWh in year 2, and 2,725 MWh in year 6, and 2,478…Continue
Posted on April 19, 2019 at 12:00pm
PV Solar Output Variability During variable Cloudy Weather
Clouds are the main reason PV solar generation experiences intermittency (excluding the nighttime 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 to be…Continue
Posted 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
Posted 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
Posted on April 3, 2019 at 10:30am — 7 Comments