On the GreenBeat: SolarCity eyes 2013 IPO, Serious Materials makes building management push

SolarCity could be looking at an IPO in 2013, CEO Lyndon Rive told the Wall Street Journal. The solar installer is expanding — it hired 300 people in the past year and expects to add 100 more to its staff in the next six months. Key to its growth: the company’s energy savings for primarily residential customers has started to attract commercial customers. The company announced its biggest deal to date last week with Wal-Mart, which will install 15 megawatts of solar panels in 20 to 30 of its stores.