Electric ovens and stovetops, just like water and room heaters, use far too much power to be viable on solar. It's important to choose a reputable brand and properly maintain the batteries to maximize their lifespan. To know how many solar panels you need, add up the total wattage of your TV and refrigerator. Not only have countless homeowners filed complaints regarding the company's aggressive marketing tactics, but a lot of the company's negative reviews also mention a lack of communication and delayed responses to warranty claims. If you notice any cracks, scratches, or loose connections, it's best to have them repaired or replaced by a professional. If you want to save the most money possible, you'll need enough battery storage to cover your energy usage when your solar panels aren't producing – somewhere around 2-3 batteries.