星期一, 5月 10, 2021
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Solar and storage are showing coal and natural gas the exits, IEEFA outlook says

Source:pv magazine

Image: Pixabay

The coming surge in battery storage deployment is further eroding the economics of coal and natural gas generation and accelerating fossil fuel plant retirements, the Institute for Energy Economic and Financial Analysis (IEEFA) said in its 2021 US Power Sector Outlook.

Technology improvements and the resulting price declines already have rendered solar and wind generation resources the least-cost option in much of the U.S. During the next two to three years the accelerating shift will be transformative, the IEEFA said.

Solar plus storage is currently economically competitive, and costs are almost certain to decline.

“Hitting both the [DoE’s] solar and the long duration storage cost goals would be a game changer,” the report said.

To pull down storage costs, the Department of Energy (DOE) in December launched a storage challenge that set a goal of reaching a levelized cost of storage for long-duration stationary applications of $0.05/kWh by 2030. Using DOE’s own estimates, the report said this would represent a 90% cost reduction.

DOE launched a storage challenge that set a goal of reaching a levelized cost of storage for long-duration stationary applications of $0.05/kWh by 2030.
Department of Energy/Quentin Kruger

In February, the DOE added to that goal, setting its sights on pushing PV costs down to $0.03/kWh by 2025 and $0.02/kWh by 2030.

“Last year was definitely a breakout year for battery storage… but it’s just a harbinger of things to come,” said Dennis Wamstead, the IEEFA analyst who co-authored the 2021 outlook.

About 20,000 MW of new battery storage will probably be installed at utility installations around the country in the next four years. Battery storage passed the 1 GW marker for installed capacity last year.

According to the IEEFA’s report, coal’s days are numbered. “Even being among the best operating coal-fired generators doesn’t guarantee that a unit is financially viable or is the lowest-cost option for consumers,” it said.

On the natural gas side, the IEEFA said it expects project financing to become increasingly difficult to secure due to climate change concerns, a more progressive administration in the White House, and lingering overcapacity. The possibly that the Federal Energy Regulatory Commission will re-examine its current hands-off approach to approving new interstate gas pipelines also presents a threat to future gas generation proposals, it said.

Party’s over?

In short, the rise in gas generation that occurred in the 2010s is pretty much over.

“Part of that is being driven by the rush to wind and solar, and part of that is being driven by the fact that there is an increasing emphasis on the environmental impacts of gas,” Wamstead said.

He said “it’s entirely possible” that by the end of 2022 wind and solar by themselves will have caught up with coal. He said that by the end of this year, wind, solar, and hydro generation may well exceed coal’s contribution to the U.S. electricity market.

If the Biden administration pursues a 2035 carbon-neutral electricity grid with any success, “obviously that will change a lot of these forecasts,” he said.

For example, creating an investment tax credit (ITC) for energy storage or a technology-neutral tax credit that would apply equally across all forms of generation, and storage that lowers greenhouse gas emissions could also accelerate change. So, too, could the passage of several other bills in Congress, including one measure to incentivize domestic manufacturing of advanced energy technologies and another to create a transmission tax credit.

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