I found EnergySage to be an invaluable help in researching vetted solar companies in my area, their quotes for the number of solar panels, each company's recommended solar panels, inverters, total cost, price/watt, and more. To be able to compare each company's products side by side was an incredible help. In this comparison, you could click on each company's product to find out the specs. about it. You even get a representative from EnergySage assigned to you who I found to be very knowledgeable and helpful. Thanks to EnergySage I feel very confident in the company I selected to install a solar system on my house.