by-products compoundsemiconductors congresses designandconstruction electricbatteries electricpowerproduction electricpowerproductionfromchemicalaction electrochemistry energyharvesting energystorage fuelcells heat hightemperatureelectrolysis materials nuclearpowerplants nuclearreactors oxidation photovoltaiccells power(mechanics) powerresources purification renewableenergysources semiconductors solarenergy thermodynamics tj810 transmission water