Suppy and Design of renewable Energy systems for grid-tie and off grid purposes.

8(a), concrete, utilities, residential, sitework, commercial

Excavating, Landscaping, Sewer, Trucking, Water

Excavation, earthmoving, water, sewer pipeline, construction, road building, and trucking, Demolition

Water & Sewer

Biomass, Alternative Energy, Woodchips, Cellulose, Heat Air Cond, Industrial, Commercial, Controls, Boiler, Steam, Hot Water, Chillers, Closed Loop Systems, HVAC, windmills, fuel, ethylene, power, water, septic, drainage

SPEARFISH IMPORTS EXPORTS INC

Weed control, fertilizing, mowing, trimming, chemicals, fertilizer resale

grilles, registers, diffusers, HVAC units, air conditioning, heaters, furnaces, dampers, fire smoke dampers, duct heaters

Electric Power Distribution, Electrical Contractors, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Power, Distribution, and Specialty Transformer Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing

Irrigation District

GRAND ELECTRIC COOPERATIVE, INC.

WINTER BROTHERS UNDERGROUND, INC.

Steam and Air-Conditioning Supply, Plumbing, Heating, and Air-Conditioning Contractors

Water Supply and Irrigation Systems

Natural Gas Distribution, Residential Remodelers, Oil and Gas Pipeline and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors

Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors

Water Supply and Irrigation Systems

Other Electric Power Generation

Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Land Subdivision, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction