It's not a big deal. Average american drives what 12,000 miles per year? Or 32 miles per day. My car (m3) has a 75kwh battery and has a range of 310 miles or

It's not a big deal. Average american drives what 12,000 miles per year? Or 32 miles per day. My car (m3) has a 75kwh battery and has a range of 310 miles or so. So I need (on average) 10.3% of a battery charge or 7.75 kwh. Most people are home for 12 hours a night, so 650 watts. So sure peak might be 3.5-7kw, but the average car load will be much less.. 5-10x less. Keep in mind that the average car lasts 8 years (claims consumer reports), but seems like bad economy is causing that to head higher. So even if 10% of the cars per year switch to electric that's not really all that much power. Especially with wind, solar (both home and utility scale), battery storage (both home and utility), hydro, etc ramping up. The hardest thing for most grids to handle is peak loads on hot days where a fairly large fraction of home AC are running, now that's a load that makes charging an electric car look easy. E-cars by nature tend to balance the load and make the grid easier to design and maintain. Sure tax incentives for storage, wind, and solar should continue. California's SGIP program seems particularly effective. Solar+Storage solutions get a big break, and the grid can make do with less peaker plants because they can tap into residential installed power walls all over the state to handle the peaks that used to require spinning up the least efficient/most expenisve peaker plants.