The Apollo solar roofing system for asphalt shingle roofs is made up of lightweight modules that use silicon solar cells to convert sunlight to electricity to generate up to 52 watts per module. The modules are resistant to wind uplift and do not require structural reinforcement. The system is Class A fire rated and qualifies homeowners for a 30% federal tax credit, the company says. 800.233.8990. www.certainteed.com.