REGEN Energy named Robert M. Chiste as interim CEO. Chiste was the founding CEO of Comverge and led that demand response firm’s IPO in 2007. REGEN builds demand management software and controllers for utility and commercial customers. The company claims that its "controllers dramatically reduce peak electrical demand by up to 30 percent in commercial and light industrial properties." Earlier this year, REGEN Energy held a $7 million initial close to its Round B "led by a significant international energy company" along with NGEN Partners and BDC Venture Capital. Pursuing new endeavors is Tim Angus, who resigned as president, CEO, and member of the Board of Directors on March 20. 

Scott Burton has succeeded Ed Grady as CEO of RSI (formerly known as Reel Solar), a VC-funded cadmium telluride solar module firm recently acquired by a Chinese strategic.

Peter Londa is now the CEO of Tantalus. Londa joins the company, which offers an advanced metering platform for utilities, after serving as the CEO of BPL Global, a firm which was sold to Danaher last year. Londa replaces outgoing CEO Eric Murray. Tantalus provides "two-way, real-time data communications networks to monitor and control electric, gas and water utilities."

Yingli Solar named Mathew Sachs as VP of Corporate Development.

Tucker Twitmyer has departed energy-centric EnerTech Capital Partners after a decade at the investment firm, according to Fortune. He is headed to $11 billion investment firm Franklin Square Capital Partners. Twitmyer's investments at EnerTech included Advent Solar and OwnEnergy, according to the report.

SunEdison, a developer and provider of solar energy services, named Jose Perez as President of SunEdison Europe, Africa and Latin America. Prior to his new role, Perez was VP of Global Project Operations and VP of Operations for EMEA at SunEdison.

Power Analytics added Tom Thebes to its board of directors. Thebes is president of Chemring Sensors & Electronic Systems. Power Analytics' software provides users control over power infrastructures from design and modeling to simulation and analysis.

Schneider Electric appointed Laurent Vernerey as president and CEO of its North America operations. Vernerey has been with Schneider for 28 years and worked his way up from plant manager to lead the company’s $8 billion North American line of business. Schneider has more than 150,000 employees and had sales of $31 billion in 2013. 

KACO new energy, a PV inverter manufacturer, named Jurgen Krehnke, previously president and GM of SMA America, as its new CEO for the Americas. Krehnke is currently a board member with the Solar Electric Power Association. KACO is hiring in its San Antonio, Texas offices to support the 400-megawatt OCI/CPS project.