The best alternatives to Legion Solar 4 are Yeloha, SolarGaps, and HelioCloud. If these 3 options don't work for you, we've listed a few more alternatives below.
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Universal-2 by AssemblyAI— Speech-to-Text API for conversational data
SmartHelio helps solar utilities automatically predict and prevent downtime disruptions, increasing their annual revenue by 10% from their solar plants. We are working with 15 large solar utilities to help them generate extra $25M per MW per year.
Mosaic is a clean energy fin-tech company based in Oakland, California. Founded in 2010, Mosaic created its initial business model using crowdfunding principals to offer loans for commercial solar development projects.