Derapi

Derapi builds a universal API for distributed energy devices: one interface that speaks to batteries, chargers, thermostats, and inverters from many manufacturers. Anyone building a virtual power plant has to integrate with each device maker separately, and each integration is a bespoke technical and commercial negotiation that takes months and then needs maintaining forever.

That overhead is why VPPs are hard to build and slow to spread. There are millions of batteries, EVs, and heat pumps sitting in homes that could be answering the grid's peaks instead of a gas plant, and a large part of what stands between them and that job is integration work nobody wants to do. Derapi does the integrations properly rather than reverse-engineering them, which is what it takes to control a device, not merely read from it. Infrastructure is unglamorous and it decides what gets built on top.