I believe green energy is great way to heat our homes but what if the wind is not blowing and sun is not shining? This is a big challenge for re-newables and storing excess energy as fuels for later use can be a great solution to this issue. I work on electrocatalysts that could help for simple and efficient generation of H2, CH4 and other carbohydrides from water or CO2 using a green electricity source. I think solids are fascinating to work with and potentially very useful in energy conversion and storage. At my lab we just can't get enough of solid state materials and make them in thin films, slurries, colloids, nanoparticles and powders.