What’s The Best Way To Buy?

KateDear Kate,
We’re thinking about solar for our home, and possibly an electric car sometime in the future. Seems pretty cool to be energy independent!

What’s better for us? Buy big now, in preparation fo the car? Or wait until we get the car and then add on to our system?

How Big?

Dear How Big,
Glad to hear you’re thinking ahead! a solar/electric car combo can be a real win.

Here’s the trade-off: Buy big now and you’re putting money on your roof, with no benefit to you. Add later, and you might not get all the tax and rebate benefits, as those keep changing.

Consider buying your solar system using a solar lease or purchase power agreement. For both of these types of contracts, the installer retains ownership, and they can better navigate the tax incentives.

If the car purchase is down the road (pun intended!) than a two-stage install might be best. But who knows? The installer may give you a discount if you do the two stages all at once.


Do you have a question for Kate? Email her at askkate@wattzon.com. And yes, there is a real Kate. She has helped hundreds of consumers save energy the easy way – through habits and low cost changes. Everyone saves after Kate’s home visit, even the greenest of homes. She’s that good!


WattzOn Labs is always innovating ways to engage people to save water and energy. It showcases the WattzOn products under the WattzOn Labs private-label. We don’t market these products, but use this small-scale direct-to-consumer experience to constantly evolve and learn. Then we apply the findings to the rich, private-label products used by all our customers at WattzOn.