Board of Directors

Moke Simon, President



Danielle Matthews Seperas, Vice President

danielleDanielle Matthews Seperas joined Calpine in 1999 and is responsible for Calpine’s geothermal community and local government outreach related to energy and other issues.

Her responsibilities include expanding geothermal energy education in the community, community tours, and overseeing Calpine’s Visitors Center operations. Danielle holds a Bachelor of Science degree in History and Government and a Master’s degree in Public Administration.


Mark Borghesani, Treasurer

Mark Borghesani joins the Hammers for Hope Board of Directors as treasurer and logistics lead.

He brings his experience as general manager and president of the board of Kelseyville Lumber to Hammers for Hope to manage projects, coordinate contracts and supplies, and assist with application assessment.

Kelseyville Lumber has been in the Borghesani family for three generations, and is still owned and operated locally. Mark began working for Kelseyville Lumber over thirty years ago, and has managed the company since 1995; he counts his 90+ employees as family.

As a Lake County native, Mark enjoys the natural resources of county by hunting, fishing, and taking his jeep out. He also enjoys riding his Harley, and playing basketball. He is passionate about harnessing the power of community to improve the lives and homes of residents. His other volunteer work includes participation in the Kelseyville Lions, over ten years of involvement with Hospice Services of Lake County, and service on the Chamber of Commerce board.

John Hess