The project's objective is to create a prototype domestic power source with an electrical output of about 1 kW for combined electricity and heat production from biomass through the organic
Rankine cycle (ORC). The heat will connect to heating systems in various buildings. It will use heat from a modified biomass boiler and direct heating of the working substance. The electricity aligns with PV batteries and inverters, supplementing home electricity in the heating season. The unit's core is a tailored expander-pump-generator. Another option is connecting a standard expandergenerator and pump-motor. The final choice will be based on techno-economic optimization.