603 Solar is a Residential Solar provider based in Portsmouth, NH helping homeowners receive the best return on investment possible with the opportunity that solar has to offer! 603 Solar helps homeowners understand what their needs are and how much solar production they will need to offset their electric bill. We help calculate how much solar you will need, design exactly how the system will layout, and handle all the applications and permits required to approve a solar installation. Once approved we coordinate the installation and inspection of the system, and once it has been approved the system is ready to start collecting energy for you!