CalCEF Clean Energy Angel Fund

CalCEF Clean Energy Angel Fund invests in clean energy companies and is a San Francisco-based seed- and early-stage venture capital fund.

Danny Kennedy

Managing Director

8 past transactions

Alphabet Energy

Series C in 2016
Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainable materials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts.

RSI (Reel Solar Inc)

Seed Round in 2013
RSI provides technology, tools, materials and know-how to the leaders in photovoltaic manufacturing. The company has developed a proprietary process for Rapid Efficient Electroplating on Large-areas (REEL). RSI works with regional manufacturing partners to deliver the lowest cost locally manufactured photovoltaic modules. The company was founded in 2009 by a team of capital equipment veterans based in Silicon Valley, California. Co-investors include CalCEF Angel Fund, CMEA, Mayfield Fund, Nth Power, and Pangaea Ventures.

Alphabet Energy

Series B in 2013
Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainable materials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts.

Tula Technology

Venture Round in 2012
Tula is driven by an overriding passion to increase efficiency and improve the environment. With more than 320 patents for multiple technologies issued or pending – and a combined 450 years of engineering work behind them – we’re focused primarily on applications for passenger automobiles and commercial heavy-duty trucks powered by gasoline, diesel, alternative fuels and electricity. Our approach to improving efficiency really sets us apart. We come at it with software solutions, not hardware, and we deliver proven results with one million vehicles on the road using our technologies to decrease harmful emissions and increase fuel savings. But we’re not stopping there. We’re exploring efficiency in other means of mobility, robotics, e-aviation and industrial machinery. Tula drives efficiency.

Boulder Ionics

Series A in 2012
Boulder Ionics is a rapidly growing start-up that produces ionic liquids and ionic liquid based electrolytes for demanding electrochemical applications. Using a proprietary high-throughput synthesis platform, Boulder Ionics is able to manufacture ultra-high-purity ionic liquids at a superior price/performance ratio. Boulder Ionics’ advanced Iolyte™ electrolytes and pure ionic liquids have applications in a wide range of products ranging from ultracapacitors to lithium-ion batteries and next generation metal-air batteries. The company is currently working with several strategic partners and industry leaders and expects full integration of Iolyte™ electrolytes into a growing number of commercial products by mid-2012.

Alphabet Energy

Series A in 2011
Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainable materials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts.

Alphabet Energy

Seed Round in 2010
Alphabet Energy, Inc. is commercializing a breakthrough, inexpensive waste heat recovery technology developed at the Lawrence Berkeley National Laboratory. Our revolutionary thermoelectric approach and materials platform is the only of its kind that lends itself to massive scale at low cost. With our products, made entirely from sustainable materials, customers may use their waste heat to generate electrical power in the range of microwatts to megawatts.

Allopartis

Series A in 2008
Allopartis develops enzymes to convert biomass into sugar for cellulosic biofuel production and industrial biotechnology.
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