Neighborhood Defenders bring up aesthetics, the environment and property values as reasons to oppose things. There are quite a few in my city (and likely yours, too). Sometimes, it seems like nothing must ever change or else we will incur their wrath. I've been begging for bike lanes for 25 years, to no avail. Bike lanes must never take away on-street parking (mostly FREE PARKING) so they don't get built. Instead, we'll just keep making blood sacrifices of our children on the streets.
Anyway, I digress. This is a blog post about electricity and pollution. But I have to digress a little bit longer first.
Since 2019, I have been a director on the boards of both League of Women Voters of the Beach Cities and of Los Angeles County. Due to my science background, I was assigned the Natural Resources Portfolio.
I've been passionate about water and the environment since I took Field Biology in high school. So I also joined the LWVC Water Committee. I was a little bit too outspoken at the Water Committee meetings because I ended up being assigned to write nearly half the Overview of California Water articles, including the one on the Water-Energy Nexus.
This led the LWVC chair of Natural Resources to ask me to serve as her deputy in the area of Energy/Electricity. Thus, I found myself the Energy Subcommittee team leader. I promptly ordered and read a bunch of books about energy and clean energy in particular. It's a fascinating topic. I never imagined that I would know the names and boundaries of the regional balancing authorities of The Grid, or that I would have opinions on their governance. But, I do now. ;-)
Back to electricity.
There's been a spate of articles lately about the fate of a handful of power plants along the California coast that use ocean water for cooling. OTC (Once Through Cooling) plants have to suck in large volumes of ocean or river water, which can suck in small sea/aquatic life. That is totally no bueno.
At one time, we had quite a few of them. They sit on prime ocean-front land so their real value is often more due to real estate than power production. OTOH, they also have infrastructure, such as existing transmission lines, that would be difficult to assemble today.How a beachfront gas plant explains California’s energy problems lays out some of the issues.
El Segundo rarely operates both generators at the same time. It also runs some warm up hours with little power output, but uses a lot less gas to do it at those times (if you look at the full data).
Nameplate capacity is how much power a plant can generate, if it ran at full tilt. ESEC has a nameplate capacity of 560 MW with both generators operating. They ran one for part of 538 hours and the other for 626 hours. There are 8760 hours/year. If it ran at full capacity the entire year, it would generate 4,905,600 MWh of energy. It generated 227,487 MWh in 2021, so it ran at .046 capacity factor in 2021. ESEC is an example of a "peaker" plant, that runs only when the grid demand is high.
In the future, with high integration of renewable energy sources, all gas plants will operate as peaker plants. If they can't be nimble enough, they will be retired. It's the most rational and economic choice. It's also the only way they will meet California's RE PS which is the law of the land.
AES officials say the new plant will run more efficiently, have a smaller footprint and provide flexibility for the grid when energy from renewable resources isn't available.
Opponents, on the other hand, argue that the plant will continue to decrease property values and blight the waterfront, despite a $300 million revitalization effort. Additionally, they point to AES' application and say a new plant will run more often than the current one, and thus produce five to 15 times more particulate pollution.Anyway, for almost a decade, Redondans have suffered 2-3.5x more pollution than we would have if AES RB had been repowered to the same scale and technology as ESEC. We lived with more noise as the proposed upgrade would have been enclosed to contain sound and ran much fewer hours/days. We also continued sucking marine life into the water intakes.