The open hardware journal - HardwareX just issued a Special Issue on Open Source Decarbonization for a Sustainable World
No APCs for open hardware projects that cover tech for electrification of heating (e.g. heat pumps) and transportation (e.g. batteries) as well as decarbonizing the grid (e.g. solar). Projects like Pumps for Peace are exactly what we are looking for.
Submission deadline: April 28th, 2023