Custom manufacture of energy systems for others namely, district energy systems and geoexchange systems to heat, cool and provide power in municipal, industrial, commercial and residential applications using power in municipal, industrial, commercial and residential applications using coal, steam, oil, biomass, natural gas, solar, wind power, nuclear, geothermal and sewer heat recovery.

Installation, maintenance and repair of energy systems namely, district energy systems and geoexchange systems to heat, cool and provide power in municipal, industrial, commercial and residential applications using power in municipal, industrial, commercial and residential applications using coal, steam, oil, biomass, natural gas, solar, wind power, nuclear, geothermal and sewer heat recovery.

Public utility services in the nature of distribution of energy, namely, distribution of electrical energy, gas, water and district heating and cooling in municipal, industrial, commercial and residential applications using coal, steam, oil, biomass, natural gas, solar, wind power, nuclear, geothermal and sewer heat recovery by district energy and geoexchange systems.

Custom design and development of energy systems for others namely, district energy systems and geoexchange systems to heat, cool and provide power in municipal, industrial, commercial and residential applications using power in municipal, industrial, commercial and residential applications using coal, steam, oil, biomass, natural gas, solar, wind power, nuclear, geothermal and sewer heat recovery.