![]() ![]() It also provides an estimated cost and a visual mockup (though not of your house). Tesla will then spit out a suggested solar array and number of Powerwall batteries. Enter your average monthly electricity cost. The ordering process is fairly straightforward: Enter your address. Read more: Your Solar Panels Can Make You Money. If you finance your panels through Tesla, you'll owe 10% down (assuming you have "excellent" credit) and you'll start making payments 35 days after your solar array receives permission to operate. Tesla lets you purchase solar panels in cash or through its own financing option. What financing options does Tesla offer for solar panels? Tesla, which does not operate a press office, did not respond. ![]() The SEC declined to comment on any probe in response to a CNET request in April. The SEC said that the ongoing investigation into Tesla does not mean it has found that Tesla broke the law, Reuters reported, and no new developments have come to light since. Several of its solar customers have sued Tesla over fires. The company launched Project Titan in 2018 to fix the issues, but was not upfront about the reason and did not offer to shut down solar panels to decrease the risks, according to the complain. In December 2021, Reuters reported the SEC was investigating a whistleblower's claims that Tesla failed to notify customers of an issue that may have caused some solar arrays installed before 2018 to catch fire. Because your energy needs vary from others, you might find a better fit for your needs with another company. While others might offer Tesla's Powerwall and another brand or size of battery, Tesla only offers the Powerwall. Tesla offers fewer choices than some other installers. All you need to do is to submit the competing quote through your Tesla account. If that quote comes within 14 days and is for an array of the same size or larger, Tesla will match the price on a dollar-per-watt basis. Tesla will match any installer who quotes you a lower price. Tesla has also suddenly changed its solar panel prices in the recent past. You may need to upgrade your electrical main panel or pay extra for hiding the conduit from your solar panels. Your $100 refundable deposit only starts the process. Tesla's prices for panels without storage are well below the information available for other national providers, though they may not be the final cost. One Powerwall costs $10,500, though Tesla appears to be offering a discount if you buy more than one. The Lawrence Berkeley National Laboratory reports the national median-size solar array is 7 kilowatts. If you remove the suggested Powerwall batteries, the estimates come to $2.10 per watt for each size. With one Powerwall and the federal tax credit ( 30% of the cost if you install through 2031), Tesla estimates that installations range in cost from $4.29 per watt for a 4.8-kilowatt system to $3.48 per watt for 7.6 kilowatts and $2.70 per watt for 17.6 kilowatts. Tesla's online estimates typically come in below that mark, unless you include back up batteries. Larger systems will tend to be cheaper per watt than smaller systems. ![]() A Wood Mackenzie analysis determined that an 8-kilowatt solar installation in 2022 cost $2.99 per watt on average. Price, because it's hard to generalize and compare across companies, doesn't factor into the score we give solar companies, but it's an obvious consideration when you're shopping for solar panels. Many other major solar companies offer it with their installations. You can pair your purchase with one or more Powerwall batteries, Tesla's well-regarded energy storage option, and have energy at night and during power outages, or take advantage of time of use rates. Tesla's solar panels have maximum efficiency ratings that range from 19.3% to 20.9%, which compare favorably with other panels (though slightly more efficient panels are available). Unless you're particular about who manufactures your panels, what's really important is how long they'll last and how well they'll work. If that's important to you, Tesla has an advantage here. To my eye, Tesla's installations are indeed less obtrusive than others. Tesla promotes its panels' sleek, low-profile design. (That jump in size is the capacity of one solar panel, which often come in a 400 watt size). Tesla used to offer only four sizes of solar arrays, but now offers quotes on systems as small as 4.8 and as large as 17.6 kilowatts, increasing in 0.4 kW increments. ![]()
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