California's Renewable Energy Problem A reality check on renewables - David 1 day ago   18:01

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References:

References:
[1] https://endcoal.org/wp-content/uploads/2019/03/BoomAndBust_2019_r6.pdf
[2]
https://www.energy.ca.gov/renewables/tracking_progress/documents/renewable.pdf (verified with own calculation)
[3]https://web.archive.org/web/20040702092945/https://www.duke-energy.com/news/releases/2000/Nov/2000111601.html
[4]https://pv-magazine-usa.com/2018/11/08/california-regulators-approve-the-worlds-largest-battery-projects/
[5] https://www.ge.com/power/transform/article.transform.articles.2018.oct.storage-threat-to-peaker-plants
https://www.greentechmedia.com/articles/read/just-how-much-business-can-batteries-take-from-gas-peakers#gs.bn4i7x
[6] http://www.caiso.com/TodaysOutlook/Pages/default.aspx
[7] https://reneweconomy.com.au/revealed-true-cost-of-tesla-big-battery-and-its-government-contract-66888/
[8]http://www.caiso.com/Documents/Wind_SolarReal-TimeDispatchCurtailmentReportMay07_2019.pdf
[9] http://www.caiso.com/Documents/Wind_SolarReal-TimeDispatchCurtailmentReportMay15_2019.pdf
[10] https://www.energy.ca.gov/almanac/electricity_data/total_system_power.html
[11] https://arpa-e.energy.gov/sites/default/files/documents/files/DAYS%20Project%20Descriptions%20FINAL.pdf


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Comments 6990 Comments

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Hozefa Lakadawala
Really informative video
Jamie Nash
Surely hydrogen is a viable solution to storage.
Sergej Solomakha
Surely, energy storage is one of the biggest challenges for renewable energy. But this does not mean that we should strive to go back and abandon the energy of the sun and wind. There are also solutions in the field of long-term accumulation - such as hydrogen and methanol. In addition, the energy redistribution networks themselves must apparently finally become something different than 100 years old technology. Certainly an excellent analysis and reason to look a little further, the only question is where to direct efforts in research.
Edward Carberry
Did I just hear something about, getting the young to think about engineering? Oh, am I in the wrong time! 34 of my ideas have been patented, first one was when I was 6 or 7 yrs old. Little wonder why I am board!!!!!
DrgnFlys
Renewables cost less than any other source and last for decades. Renewable energy sources are the best way to go, if you've got an ounce of business sense.
Rene Topplep
No need to store a huge amount of energy. Our energy needs for the next 1000years or more is already stored in the sun. Think globally. The sun is always shining somewhere and will generate energy. There will be always wind blowing somewhere. Just a matter of global distribution of energy
mhz
How does closing natural gas plant reduce carbon emission?
John Richeson
This video actually demonstrates why the "big box" utility business model no longer works. The problem is not "renewable" energy. It is "alternative" energy sources... where homes and businesses can generate much of their on energy on site. The video assumes that ALL energy must be provided by the utilities, and fails to even acknowledge the rooftop solar panel, power storage not owned by the utilities, and the growing fleet of "mobile" energy storage in electric vehicles that will function to balance grid load when plugged in at night. Linear forecasting in a non-linear world is not REAL engineering.
Mike Rurak
Stationary battery storage does not to be light. It just needs to be cheap and energy dense. So something like sodium ion batteries. Which may be heavier, but are far cheaper and thus perfect for grounded battery banks. So there you go. simply use batteries that fill the need and nothing else. Your power storage does not need to move, so who cares about how heavy it is, there are heavier options with comparable capacity at a fraction of the cost
Funny hippo
im no engineer, but am curious. would it be better to start building houses with batteries made from power cells. it would spread the cost out and each house could add cells if needed.
William Munro
So they buy electricity from other sources generated by hydrocarbon. What a bunch of hypocrites.
Jeffrey C
If only all that green energy money was put into Liquid Thorium Nuclear reactors.
drewtronics
The cheap tier of California energy cost was at .25/kwh ranging to the highest tier at .50/kwh at the time I left the state. This in, and of itself, is un-sustainable and is driving population out of the state. I went to Texas, I love using carbon as my slave, so if you come here from Cali, embrace making carbon your slave and enjoy .108/kwh power. Oh, and the trees love me for supplying them with LOADS of carbon dioxide food............. I don't bow to your fake climate catastrophe gods. This world and its plant life LOVE CO2!!!!!!!!!!
burhanuddin dhandhukawala
Can't we just connect all the grids across the globe so that atleast some of them are generating solar electricity at any given time to get rid of batteries?
Lynndon Harnell
Storage implies explicitly energy. Any engineer can tell you MW is not energy. Its energy rate.
Kenn Hepner
The scope of all the YouTube videos I see are about massive, expensive projects that can only be funded by government for use by primarily for profit energy generation and distribution companies. The concept that only government and gigantic industry can produce renewable energy is a will fill blindness to small scale generation that returns excess generation to the grid. Centralized power generation is also a means of population control. A million small generation plants returning excess power reduces the profit needed for a commercial Enterprise. If the power distribution is a publicly owned facility, the profit motive is reduced to paying for the fuel and manpower. The returned power, with a payment to the small generation plants at monthly adjusted wholesale rates, give the utility more power to sell out of the area as well as gives the current equipment a longer usable life. What reason, besides profit for the existing utility to people have to ignore small generation plants. A million small solar, wind, and wave power plants would be good for all of us.
Tom Recane
What about residential solar power generation and storage? How will that effect demand in winter months? Couldn’t a lot of that evening demand be handled by batteries in the home?

Also is 100% renewable energy necessary? Would 80% be good enough? That’s a huge reduction.
SpinFast
Easy fix for CA. Just double or triple the price of electricity. Demand will drop significantly.
Edward Badlands
There’s NO WAY wind & solar can support this idealism. Get smart get nuclear power up and really go green!

Do the math, making solar panels and batteries is a huge source of pollution, unnecessary extra cost massive infrastructure additions.
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A reality check on renewables - David California's Renewable Energy Problem 1 day ago   18:35

How much land mass would renewables need to power a nation like the UK? An entire country's worth. In this pragmatic talk, David MacKay tours the basic mathematics that show worrying limitations on our sustainable energy options and explains why we should pursue them anyway. (Filmed at TEDxWarwick.)

Lesson by David MacKay.