What policies can improve the integration of electric vehicle charging into the grid? And how can electric utilities prevent everyone from charging all at once?
This is a really interesting question! NREL and USAID have worked with Laos to help the Ministry of Energy and Mines determine the right business models and regulations for electric vehicle supply equipment (chargers). This presentation can help you think about your jurisdiction’s objectives and the types of business models for charging that may be best for you.
As the share of EVs grows, the need to find ways (either regulatory, or using price signals) to prevent everyone from charging at once is going to grow. One option that is emerging is what’s called “deadline differentiated pricing”: essentially, if you want your car charged in 30-45 minutes, you pay a substantially higher charging price; if you only need your car fully charged in 12 hours, or 24 hours, then you pay a substantially lower price. By giving the grid the ability to charge your car when supply is available (and cheapest, like when the sun is shining, or the wind is blowing) EVs can even help make the grid as a whole more flexible, and more resilient. As the sector grows, price signals like these are going to be a critical part of governing a growing, multi-million vehicle sized EV fleet. Hope this helps!