Joseph E. Slamm is a renewable energy investor who co-founded Hudson Clean Energy Partners (now Hudson Sustainable. See sector focus and contact routes.
Joseph E. Slamm is a renewable energy investor who co-founded Hudson Clean Energy Partners (now Hudson Sustainable Group), focusing on early-stage to growth-stage investments in clean energy, resource efficiency, battery storage, and grid infrastructure. His notable portfolio includes lead investments in Horizon Wind Energy (where he served as interim CEO), First Solar, and SunEdison, alongside current board roles at Element Power and Wind to Power Systems. Slamm’s distinctive thesis centers on pioneering investment and financing structures for global renewable energy platforms, having deployed over $3 billion in capital to accelerate the energy transition.
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