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Virtual Resources

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This paper is about the latest spin on virtual power capacity systems, which are also known as virtual peaking capacity, virtual power plants, and so forth. These systems are still being produced, but the company producing the latest spin on these virtual systems is generally known for a spin of a different type.

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John Benson's picture

Thank John for the Post!

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Dr. Amal Khashab's picture
Dr. Amal Khashab on Aug 11, 2020 1:14 pm GMT

Good read. The beauty  is  old concepts are valid even having new names such as load management and demand side management. Is not demand a load , is it?

I have an idea to apply all load management techniques as guide lines options for customers during certain period on voluntary basis. Saving in peaking demand has to be appreciated, and visa versa the peak demand has to be penalized. The reference case for assessment is the previous year same month consumption. This is simple ,  and don't  need advanced smart meters.

Bob Meinetz's picture
Bob Meinetz on Aug 11, 2020 3:04 pm GMT

John, it should be noted 100% of the blame for the Kogan Kreek trip, the SA "non-credible contingency event", and the December high and low frequency "events" can be attributed to frequency and power instability originating from the Hornsdale and Snowtown Wind Farms.

Gotta love the renewables / battery business model: expensive, intermittent generation creates the problem, expensive batteries solve it. Rinse, repeat.

Charles Botsford, PE's picture
Charles Botsford, PE on Aug 19, 2020 8:19 pm GMT

Hi John,

Great post. I especially liked your analysis regarding BEV resources. Though you call it an over-simplification, it demonstrates the scale of resources available via managed charging of EV batteries. The cost to ratepayers and taxpayers of this resource is essentially zero compared to the cost of stationary utility-scale battery systems, which is very expensive even if the batteries (cells) portion of the system were free.

In California, Tesla may or may not be able to discharge their EVs into the grid. It depends on whether their on-board chargers are four-quadrant inverters, which will likely be required by Rule 21 (and IEEE 1547-2018, UL 1741, SAE J3072). 


John Benson's picture
John Benson on Aug 20, 2020 10:47 pm GMT

Thanks for the comment, Charles.

So far I haven't drilled into Elon's charger strategies to any great extent. This might be a good subject for a future post (after Battery Day). 


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