A well-designed rooftop solar system should last 20 or 30 years, or longer. This guide for choosing the right contractor should help ease your concerns.

Using Normal, Illinois, as a … well, normal … case study, we look at how a roof’s latitude, pitch, and azimuth affect energy output.

A solar racking system’s strength is determined in part by the metal racking, but it also depends on the roof’s underlying structure. Rafters and any supporting structures must be strong enough to withstand your region’s maximum wind and snow loads.

In this series, we’ll break down the decision-making process into bite-sized pieces so you can navigate the process and feel good about your choices.

Solar-plus-storage on residential rooftops pencils out in only a handful of markets. Here’s how the numbers work.

Tax credits are great, but many individuals and businesses don’t pay enough in taxes to make them work. Why not create a paradigm shift in how credits are distributed?

As national solar lease companies layer the industry and as more states weigh new-construction solar mandates, the pace of change–and the nature of competition–will only accelerate for local rooftop solar experts.

In a sales environment where only one in 10 viable solar projects moves forward, getting from a good idea to a firm decision by a customer needs to happen fast. Here’s how one commercial solar installer makes technology work.

Multiple states require electric utilities to share their power grid data with solar developers. The resulting tools are like treasure maps for solar developers.

Tools deployed by the state as well as the underlying contract structure have created a program that local business and homeowners can grasp, and are investing in. That’s SMAHHHT.