iPlug
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Location: Rocklin, CA

California Electrical Grid Sources

Sat Jul 13, 2019 3:45 pm

I've been updating this annually over at PriusChat for a few years and thought a few here might find this interesting:

Another great year for California, continuing to lead in grid greening. Please note that for 2018, we came off a record rainfall 2017 year which briefly inflated hydro sources.

2018 California Electrical Grid Source data:

https://ww2.energy.ca.gov/almanac/elect ... power.html

Highlights comparing 2018 to 2017:
(note units are percent total system power)

-coal mix is decreasing and only 3.30% (vast majority remains imported)
-natural gas use increased after being down for 3 consecutive years, now 34.91% of the power mix
-nuclear remains nearly stable, at 9.05%
-large hydro decreased from 14.7% to 10.68% (2017 had record rainfalls within CA)
-non-large hydro renewables grew and continue to climb rapidly, continuing a long trend, with a year-over-year 2.36% increase in the share of total power mix, to a current level of 31.36%
-wind continues to grow with new accelerating gains following some years of slowing increases, now 11.46%, up from 9.4%, briefly retaking the renewable lead from solar which took the lead for the first time in 2017
-solar (1 MW and larger facilities) increased to 11.40% (10.2% last year)
-small hydro fell as with large hydro as 2017 had a temporary burst with record rainfall that winter/spring
-still, the impact of solar above is greatly underestimated as “behind the meter” (BTM) home solar is not measured as only units generating 1MW or greater are counted; “BTM residential solar generation was estimated to be 13,582 GWh, a 20 percent increase from 2017”; therefore California probably gets ~17% total system electric generation from all sources of solar PV
-California total system electric generation was down 2 percent from 2017 and a major factors cited wereenergy efficiency programs and residential installs of BTM residential solar PV systems that directly displaced utility-supplied generation.
-California's non CO2 emitting electric generation categories (nuclear, large hydroelectric, and renewables) accounted for 53 percent of its generation, compared to 56 percent in 2017. As a result, in-state generation dropped by 6 percent (11,494 GWh) to 194,842 GWh. This decrease was due, in part, to reduced generation from hydroelectric power plants as dry conditions returned to the state. Net imports increased by 6 percent (4,944 GWh) to 90,648 GWh, partially offsetting the decline.
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Oilpan4
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Joined: Wed Jan 09, 2019 10:51 pm
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Leaf Number: 004270

Re: California Electrical Grid Sources

Wed Sep 23, 2020 6:00 am

The 2020 rolling blackouts show how well its working.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

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Nubo
Posts: 5974
Joined: Fri May 28, 2010 11:01 am
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Location: Vallejo, CA

Re: California Electrical Grid Sources

Wed Sep 23, 2020 10:35 am

Oilpan4 wrote:
Wed Sep 23, 2020 6:00 am
The 2020 rolling blackouts show how well its working.
Can you quantify? I've experienced none.
I noticed you're still working with polymers.

Oilpan4
Posts: 1838
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: California Electrical Grid Sources

Wed Sep 23, 2020 10:32 pm

Oh it didn't effect you so I guess it didn't happen. Well that settles that.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

91040
Posts: 1055
Joined: Fri Mar 11, 2011 10:36 pm
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Location: Los Angeles, CA

Re: California Electrical Grid Sources

Sat Dec 19, 2020 9:56 am

In Boost for Renewables, Grid-Scale Battery Storage Is on the Rise

Driven by technological advances, facilities are being built with storage systems that can hold enough renewable energy to power hundreds of thousands of homes. The advent of “big battery” technology addresses a key challenge for green energy — the intermittency of wind and solar.
BY CHERYL KATZ
DECEMBER 15, 2020
https://e360.yale.edu/features/in-boost ... n-the-rise
1st Capacity Bar loss 30k mi 16mo
2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah
4th- 86.5k mi 43mo 42.6Ah
5th- 101k mi 50.5mo 38.4Ah, end 36.1Ah
New Battery 9/28/15 104k mi 66.1Ah
1st- 160.5k mi 34mo 54Ah
2nd- 184.4k mi 53mo 49Ah

Oilpan4
Posts: 1838
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: California Electrical Grid Sources

Thu Dec 24, 2020 3:20 am

If you're in the south west solar isn't that intermittent.
Another way to make solar less intermittent is install the capacity on top of thousands of homes and businesses over maybe hundreds square miles instead of a solar farm covering a square mile that can easily be blocked by a cloud.
"THE ABOVE POST CONTAINS MISLEADING AND INACCURATE INFORMATION. PLEASE CONSIDER IT OPINION, NOT FACT". -someone who I offended and is unable to produce the facts in question.

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