37 pump repair, restoration and maintenance; modification services, namely, pump upgrades for pump efficiency; hydroelectric turbine repair, restoration, maintenance; modification services, namely, hydroelectric turbine upgrades for pump efficiency; maintenance, repair, modification upgrade, replacement and tuning of components, parts or systems in hydroelectric turbine generators; installation of renewable energy generation equipment; installation of pumps; installation of hydroelectric turbines; consultation in the field of hydroelectric turbine repair, restoration and maintenance; consultation in the field of pump repair, restoration and maintenance; consultation in the field of modification upgrades for hydroelectric turbines, namely, upgrades for turbine efficiency; consultation in the field of modification upgrades for pumps, namely, upgrades for pump efficiency; consultation in the field of modification upgrades for renewable energy generation plants, namely, upgrades for renewable energy generation plant efficiency; consultation in the field of rehabilitation repair for renewable energy generation plants; all the foregoing being in connection with hydroelectric power applications