You can virtually disconnect from your local utility company by putting a solar panel system on your roof. As long as you’re making that move, why not take it a step further and disconnect from the gas pump, too? You can, as long as your solar panel system can handle charging your electric car, as well as providing electricity for your home.
If you own a Tesla, Nissan Leaf, or Chevy Bolt, for instance, a solar energy system on your roof can serve as a substitute for the gas pump.
Most people spend about $2,000 per year at the gas pumps purchasing gasoline for their cars. At that rate, with an electric car, it won’t take too many years to recover the cost for the solar panels required to charge their electric cars. And, if gas prices go up, they can cash in on the savings even faster.
Of course, this also depends on whether someone is purchasing a system for their home that will also provide electricity to recharge the batteries in their electric car or whether they’re adding on to an existing solar array for an electric car. It’s important to note that Illinois solar incentive programs do not apply when adding on to an existing system – they apply to new systems only.
The question is how many solar panels you will need to charge your electric car and will you have enough left over to provide energy for the home or office.
Assuming you have an optimal location for your solar panels – a Southern exposure without obstructions – six to eight panels (in addition to the panels providing solar energy for your home or office), producing 300 watts each, is generally considered enough to recharge your electric car when its battery is low. If your home has an East-West exposure, you may need additional solar panels to make up the difference in lower output per panel.
These numbers assume that, like most people, you drive about 1,000 miles per month. If you drive more than that you may need more electricity to operate your car; you may need more panels to keep up. The same is true if you’re prone to jack-rabbit starts. In other words, both the distance you travel and the way you drive your electric car are considerations.
To think that a solar array on your roof could help you to virtually disconnect from the local utility company and the gas pump is a little slice of Nirvana.