inhouse engineering is a manufacturerer of fuel cell CHPs 5kW el. We offer solutions for your optimal energy supply in an apartment building or in a business realty, which offer far more than your previous heating and rising electricity prices counter. With our many years of experience, we also offer sophisticated tools for research and teaching in the field of fuel cells. Whether component development and characterization (catalytic converter, membrane, gas diffusion layer or flow field) or life expectancy anlaysis with our test benches for PEM fuel cells, you receive custom solutions.