By 2050 Virginia’s transition to wind and solar power under the Virginia Clean Economy Act (VCEA) could add almost $200 a month on average to a residential electric bill. Previous estimates of the consumer cost of dumping all fossil fuels from power generation have focused on the next ten years or so, but a new analysis looks beyond that to the actual deadline for the planned conversion.
Commercial and industrial customers would see comparable explosions in cost. These projections are far higher than those prepared by our own State Corporation Commission for two reasons: The SCC estimates do not cover the later years when the utilities must reach full compliance, and therefore do not include all the coming new investments into the late 2030s and 2040s.
The Center of the American Experiment in Minnesota, which has looked at similar proposals around the country, estimates that Virginia energy ratepayers of all classes will need to pay out an extra $203 billion over two and half decades, close to half of it the utility profit margin on the massive new solar, wind, battery and related transmission facilities.
The Virginia General Assembly is currently considering either repealing or amending the 2020 VCEA, which dictated that Virginia’s major electric utilities must eventually stop using coal, natural gas or other fuels that emit carbon dioxide.
For the periods covered by the SCC reports, the ACE report lines up closely on cost. But its 2050 combination of assets includes far more solar panels and battery storage than anybody has talked about so far and adds 7,500 megawatts of land-based wind turbines, in addition to the coming offshore wind mandated in VCEA. It assumes no more than the 5,200 megawatts of ocean wind turbines already included in VCEA, because of the high cost.
It predicts a total of 105,000 megawatts of generation and storage will be needed to reliably serve Virginia, about four times the current fleet. The amount of steady and reliable generation not dependent on the weather will decline from 25,000 megawatts now to 8,000 by 2050.
The authors of this study are not utility engineers or expert accountants and were hired by a partisan group leading the fight to repeal the VCEA. They rely on models to design a likely generation network that complies with VCEA, and estimate its costs based on current industry information in the public domain. The old rule applies: All models are wrong, but some models are useful. This is useful.
Their main point is one that has been made by others. The VCEA will introduce such a huge dependence on wind and solar assets that are subject to weather interruptions that massive battery installations will be necessary to back them up. Those installations will sit idle most of the time with the meter running. The authors have looked at performance data on existing wind and solar installations to predict how often and for how long that will happen.
“For example, based on hourly load forecast models, there are multiple 15+ hour time frames where the combined capacity of wind and solar – totaling nearly 64,000 MW in 2050 – produced at capacity factors below 10 percent. At times, the combined capacity factor hit zero.
“In one of these instances, wind and solar produced at capacity factors below 10 percent for an 18-hour stretch, which came within a 64-hour period where the average capacity factor of combined wind and solar capacity was 11.6 percent and the highest it reached was 29 percent.”
A 64-hour brown out? When your system depends on 51,000 megawatts of solar panels and 12,700 megawatts of wind turbines, calm and cloudy days are going to be a challenge. The nuclear plants and hydro plants which will remain in 2050 will not be enough to pick up the slack, and battery discharges are of limited duration. Since other states are also killing off their fossil fuel plants (and some are killing their nuclear) you cannot depend on imports to keep the lights on.
In this report, the cost of that battery backup is applied in estimating the levelized cost of energy for the new solar and wind. It adds about $28 per megawatt hour to the cost of the offshore wind plans, $43 per megawatt hour to any onshore wind, and about $45 per megawatt hour for solar. The utilities and environmental activists will violently resist including that calculation in the SCC cost analyses on new solar and wind projects.
But it should be there. Intermittency needs to be assumed and priced in. Batteries are not generators.
This will not work. The VCEA-created system mandated in state law will be unreliable and incredibly expensive. The utilities know this but won’t say it out loud. The SCC experts know this but haven’t been asked to project to 2045 or 2050. But both the utilities and the SCC are dancing around the truth, and even some Democrats may be waking up.
The ACE report seems to treat the Virginia electricity system as an organic whole, not focusing on the different companies and territories. Most of these costs will be imposed on Dominion Energy Virginia customers, about 70 percent of Virginians, and regional price variations may grow. The report also disregarded the huge tax incentives for renewable investments the utilities may reap, in recognition that those merely shift costs from ratepayers to taxpayers but do not reduce the real cost.
Democrats in the state Senate are expected to kill the repeal or reform bills pending. That also just shifts something but doesn’t avoid it. It shifts from now to sometime in the future the point at which Virginians realize this is not going to work, they cannot afford it, and start work on something viable.
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