42 providing electricity and related services (surge protection, heat pump financing, energy audits, infrared scans, air leak tests), fiber-to-the premise (FITP), dark fiber, water and sewer services, generator sales and maintenance, solar power generation, geothermal energy and services, district heating and cooling (stream), propane gas, natural gas, voice, video and data services, co-location facilities, security systems, home automatio networks, and large scale wi-fi services