Romny's energy efficiency modules convert heat into useful electricity using thermoelectric effects. This technology uses no moving parts or fluids, and it's performance is not limited buy orientation. A module is designed to allow heat to flow across materials in an electrical circuit that exhibit low thermal conductivity, low electrical resistivity, and a high Seebeck effect. For more details on thermoelectric effects in general, consult Wikipedia. To understand how Romny delivers high performance, low cost materials and modules, click the contact page above.