Tanguy Serra left the CEO post at Vivint Solar to join SolarCity as Executive VP of Operations in April of last year. An SEC 8-K issued today announced his appointment as COO at thesolarinstaller and financier. SolarCity's founding COO Peter Rive will continue as CTO and a member of the Board of Directors. 

Vivint, the home automation and security company and parent of Vivint Solar, added Nike veteran Jeff Lyman as CMO. Before joining Vivint, Lyman spent nearly a decade at Nike.

Nexant, an energy software and services firm, named Jonathan Foster as CFO. Previously, Foster served as CFO of LS9, a biochemicals development firm recently acquired by Renewable Energy Group. Foster's previous positions include CFO at Atempo, CFO at Keymage, and Deputy Director for Management and General Counsel for the White House Office of Science and Technology Policy.

Peter Schenck has moved to Vice President Acquisitions at solar project developer Soltage. Schenck was previously Director of Sales at Jinko Solar. Soltage just announced a JV with the Libra Group for a $40 million equity fund led by John Hancock Life Insurance Company to build and operate a portfolio of solar plants on the Eastern Seaboard.

SunEdison added Todd Michaels, formerly of NRG Energy, as VP of Product Innovations.

Solar balance-of-system vendor Shoals Technologies Group promoted Daniel Koulianos to VP, Global Emerging Markets.