Arthur (Bud) Vos joined Enbala Power Networks as president and CEO. Previously, Mr. Vos served as COO at Simple Energy and as CTO of Comverge. Enbala's previous CEO, Ron Dizy, will remain with the firm as EVP and Chief Revenue Officer. Enbala provides a software platform for for grid optimization. One of its best-known projects is in PJM territory, where it has been providing frequency regulation services by aggregating quick-responding load from about twenty sites. Enbala is on GTM's Grid Edge 20 list.

Power Analytics (formerly EDSA) has hired Dr. Jose Vivas as VP of power engineering services. The firm, another Grid Edge 20 honoree, is able to run "a software simulation of the power grid...quickly and accurately enough to keep up with real-world grid fluctuations -- or even to predict what's going to happen next." Power Analytics is now branching into interconnected regional microgrids andsolar-energy-storage systems, with an eye on helping create physics-based models and underlying control systems for managing the most complex two-way, distributed challenges on the grid edge.

Utilidata named Siobhan MacDermott as Chief Information Security Officer. MacDermott most recently served as Chief Policy Officer of AVG Technologies and is a former executive at Intel Security (formerly McAfee Security). Utilidata focuses on automated power conservation and management for utilities and industrial clients. Utilidata made it onto the Grid Edge 20 list with an honorable mention.

Jonathan Trent is now Director at the OMEGA Global Initiative, an organization focusing on spreading the word and disseminating technology related to algae-based products. The OMEGA system uses floating plastic photobioreactors to grow algae for fuel and feed, while also cleaning water and reducing CO2. 

Jeroen Van Duren is now Director of the advanced battery team at Intermolecular, a process discovery and contracted R&D firm. Van Duren was Director of Research at Nanosolar before joining Intermolecular in 2011. 

John Ogrodny, formerly with Tigo Energy, is now owner and President at Hawaii's Building Energy Group, a provider of daylighting systems and solar hot water technology. 

Verengo, the No. 3 U.S. solar installer (behind SolarCity and Vivint), announced the hiring of its 1,000th employee. Founded in 2008, Verengo focuses exclusively on the residential market. 

Microinverter maker APS America has hired Michael Ludgate as VP of business development. Ludgate was previously Sr. Director of Sales and Marketing for Sharp's Solar Energy Solutions Group and Kyocera Solar. 

David Goldman has been promoted to SVP, Financial Products at Solar Mosaic.

Jeannine Sargent, President of the Energy division at Flextronics, is now president of a newly formed group, Innovations and New Ventures, at the manufacturing and supply chain giant. Sargent was CEO of Oerlikon before joining Flextronics.