View Single Post
Old 07-07-2021, 06:48 PM   #62 (permalink)
redpoint5
Human Environmentalist
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 9,374

Acura TSX - '06 Acura TSX
90 day: 28.24 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 27.07 mpg (US)
Thanks: 3,250
Thanked 3,571 Times in 2,669 Posts
Quote:
Originally Posted by thingstodo View Post
As for costs, besides the meter ... what costs? The grid does voltage and frequency regulation, has the peaker plants, etc. I must e naive - what does the coop do?
Adding a single roof-mounted solar system to the grid has no additional costs because the amount generated is so insignificant. However, each additional intermittent electricity source (solar system) that is added to the grid adds increasing cost to mitigate the sporadic nature of those systems. Solar is a low quality type of electricity because it's non-dispatchable (does not respond to demand).

Once a certain amount of non-dispatchable electricity is introduced to the grid, it begins to increase the cost of dispatchable electricity. While the direct costs of the solar equipment alone are fixed, there are infrastructure costs that the grid must absorb.

One made up example (to illustrate the problem) is a gas generator with a 30 year operational life. The cost to construct the generator is amortized over the lifetime production of electricity. Because solar is curtailing (reducing) some of the natural gas electrical production, that fixed infrastructure cost has to be spread over fewer generated GWh. Instead of that natural gas plant being able to produce electricity for 3 cents per kWh, it now costs 4 or 5.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
The Following User Says Thank You to redpoint5 For This Useful Post:
thingstodo (07-07-2021)