EnergySage was super helpful in both researching the equipment and options in installing solar on our house. The bid process was also great in terms of quickly soliciting a number of bids, providing a very thorough side-by-side comparison of all the bids, and doing so in a calmer way than the barrage of cold-calls solicited by other home improvement aggregators (you can choose whether or not to give out your phone #/email, or just coordinate through energysage directly. Once we were ready to select our installer, clicking the button auto-informed the other bidders that they weren't chosen.