Direct to EV Charging Solar Farm Solution
CSAI has identified an immediately workable solution to the electrical transmission problems brought about by California’s rapid shift to electrified transportation. Though the state has only begun to start this transition, after 2026, the sale of new gas cars will be banned. Following heat waves and blackouts last summer, a January 2023 Cal Matters investigation, “Can California keep the lights on with 12 million electric cars?”
The limited capacity of the transmission grid is a very real problem with no fix in sight.
The California Independent Systems Operator (CAISO), which manages access to the grid for the state that leads the nation in renewables, did not even accept new applications for solar projects in 2022. So many solar projects have lined up for permission to access transmission lines that a backlog for approvals of up to eight years has formed.
It will take decades, and hundreds of billions of dollars. But the climate crisis can’t wait. What can we do in the meantime?
Build solar farms not connected to the grid, a market-financed solution that can be scaled up quickly and widely.
Most new utility scale solar farms generate more than 100 megawatts of power and are spread over 1,000 acres or more of carefully sited land. Building them requires years of planning and approvals, the most challenging of which is interconnecting to the transmission grid.
By taking advantage of the existing legal right of property owners to generate solar power and sell it onsite, solar farms that sell all the electricity they generate for EV charging could be much smaller than industrial solar plants, while still being highly profitable.
During the next 20 years, this simple solution would empower private capital to finance one of the most important climate mitigation and climate justice innovations in history, without adding any additional demand on an electricity transmission bottleneck that today prevents California from achieving its mandated zero emission 2045 goals.
A proliferation of the grid-free solar farms would be a major step in making electric vehicles affordable and accessible to working and middle class people, especially lower income renters without access to at-home charging stations.
This unique “bypass the grid” solution means that California would be able to electrify our polluting transportation sector within the next few decades without taxing an already overburdened transmission grid.
During the next 20 years, as much as 30 GW of solar energy could be added without requiring additional transmission grid capacity. This is nearly half of the 70 GW of utility scale solar generating capacity that California’s Joint Agency 2021 report on renewable energy projected would be necessary to reach a zero emissions electricity grid by 2045. And unlike utility scale solar farms, which otherwise must be located along transmission lines, these small EV charging station solar family farms could be located anywhere, reaching areas where larger commercial EV charging stations do not.
In the process, EV charging stations not connected to the grid would advance climate justice by bringing billions of dollars in revenue to thousands of small farmers and rural counties suffering from climate related drought, while providing California’s government with the critical implementation tools needed to address air pollution in the San Joaquin Valley, which is the worst in the state.
The economic fundamentals of direct sale solar EV farms are so advantageous, and the timetables unimpeded by transmission grid access so attractive, that billions of dollars of private investment capital could deploy enough charging stations to meet the growing number of electric vehicles, including trucks and tractors, which will replace all polluting gas powered vehicles sold in the state by 2035.
A 25 acre solar family farm, for instance, could power 20 super fast charging stations with 4 MW of solar panels and 6 MW of battery storage. Each charger could serve a dozen electric cars or a handful of buses, trucks or tractors per day, eventually drawing $2 million of revenue per year from an investment, after federal tax rebates, of just $6 million.
At the same time, the solar panels would shade the earth, and avoid the worsening air pollution in the Central Valley that is expected from dust bowl conditions that emerge on drought-fallowed lands.
Importantly, this solution would overcome the overwhelming regulatory bottleneck that has created an 8 year interconnection wait to gain access to the transmission grid. It would allow solar farms to be placed almost anywhere they are needed, regardless of transmission resources.
The Grid-Free Solar Farm Solution would also:
1. Enable thousands of decentralized small solar family farms to realize the full value of their electricity without having it marked up by utility companies which today control access to and from the grid.
2. Provide locally accessible, lower cost renewable energy powered EV and tractor charging to areas underserved by major transmission lines and commercial charging stations.
3. Enhance resilience & national security: This new network of thousands of off grid solar powered charging stations would be secure from transmission grid blackouts caused by fires, earthquakes, criminal ransomware or terrorism. Should power go out, Californian’s would still be able to find direct charging for their electric vehicles, especially emergency vehicles.
4. Provide a tool to enhance CARB’s polluting vehicle trade-in programs. Because these lower cost charging stations could be located in underserved heavily polluted areas, the California Air Resources Board could expand its rebate programs to the state’s poorest people, who now drive the most polluting cars, trucks, tractors and farm equipment in the state.
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