• What: Workers finished installing a 50-kilowatt solar array on the roof of The Johnson Group, a public relations company. The 217 panels each produce 230 watts of power during peak hours, which is fed back into TVA’s grid.
• Companies: The Johnson Group, Tennessee Solar Solutions and Alamo Properties
• Location: The Johnson Group, 436 Market St.
• How it’s green: The panels feed power back into TVA’s grid during peak usage hours, saving an estimated $1,200 per month on the company’s electric bill, and helping to offset heavy demand for electricity in the region.
• Why do it this way? The wind doesn’t blow hard enough in Chattanooga to support a windmill, said Anthony Roden, president of Tennessee Solar Solutions. That leaves solar energy as the most efficient method of on-site power generation.
