A revolutionary new technology can put solar cells on almost any surface, transforming traditional solar energy installations and turning buildings into power generators. Rising up from suburban sprawl like the mythical Oz, the downtown business district of any major metropolis repeats a familiar scene: high-rise office buildings, covered in windows, reaching for the sky. Skyscrapers may typify city skylines, but all that reflective glass also represents an incredible opportunity. Imagine harnessing all that surface area by converting those reflective surfaces into powerful solar arrays. That’s the idea behind Santa Barbara-based startup Next Energy Technologies groundbreaking solar technology. Surface Generation Currently, buildings account for anywhere between 40-50% of total global energy use and over half of all CO2 emissions. In addition, electricity represents one of the largest variable operating expenses building owners face, accounting for as much as 20-25% operational budgets. Many facilities successfully reduce consumption by incorporating renewable energy onsite and energy efficiency strategies like LED lighting and energy management systems. But what if the buildings themselves could generate power? The concept is deceptively simple: use transparent solar cell ink to print photovoltaic cells directly between standard dual-pane windows. The genius lies in the execution. For Next Energy founders Daniel Emmett and Corey Hoven, it’s all about making solar efficient, customizable and inexpensive. Windows Transformed “The most important difference with our technology is the transparency,” Hoven explains. “While all other solar cells are opaque and absorb all visible light, the windows that use our system look like conventional windows. They can allow the visible spectrum to get through, which makes our solar cells highly efficient without changing the appearance or functionality of the window.” Tinted windows can help manage indoor temperatures and lessen heating and cooling costs, but adding a solar component ups the...