Mass. Electric Construction Co (MEC) installed one of the largest community solar projects in Massachusetts. Situated on 200 acres of the historic St. Joseph’s Abbey, the Spencer Community Solar Farm is 100% subscribed with a rating capacity of 14.7 MW (AC). This installation is comprised of more than 61,000 solar photovoltaic panels powering 1,500 local homes.
The project included the design and construction of transmission structure foundations, including upgrading and converting existing 138kV to 230kV with new structures, power conductors and OPGW. The project also incorporated the demolition and reinforcement of existing 138kV structures.
Located 5 miles southwest of downtown Memphis, the Allen Combined-Cycle Plant is a 1,100 MW natural gas-fired power plant that replaces Tennessee Valley Authority’s (TVA) almost 60-year-old Allen Fossil Plant. Kiewit was the EPC contractor for the new 2x1 combined-cycle facility, which features two GE 7HA.02 combustion turbines and a Toshiba steam turbine.
Kiewit was selected by Public Service Electric & Gas (PSEG) for engineering and procurement services on the Northeast Grid Reliability Project. The project included upgrading existing tranmission lines, converting substation configurations and adding underground circuit to increase capacity while reducing transmission system congestion.
The Kiewit team was awarded the contract to design and install the Ghent Coal Combustion Residuals (CCR) Transport Project. Upon completion, it will condition, dewater and transport CCR from the four coal-fired boilers to a remote landfill storage. The project includes the installation of a pneumatic system for conveying fly ash, including fly ash storage silos, gypsum dewatering facility and bottom ash dewatering facility. The ash handling project incorporates a 1.8-mile overland pipe conveyor for transporting the dewatered CCR to a landfill.
Ontario Power Generation (OPG) awarded Kiewit-Alarie, a Partnership (KAP), the design-build contract for the redevelopment of the Wawaitin, Sandy Falls and Lower Sturgeon hydroelectric Generating Stations (GS) on the Upper Mattagami River and the Hound Chute GS on the Montreal River.
Working in a limited space with a five-week outage duration, the Kiewit team engineered, procured, constructed and performed startup of the air quality control system to tie it into Brayton Point’s Unit 3 at New England’s largest fossil fuel-fired power station.
To decrease the cost of hydroelectric power and increase the demand for service, Kiewit completed this bid-build contract to expand the Healey Falls Generating Station. Located about 15 kilometers north of Campbellford, the generating station includes a new unit in a spare bay inside the existing hydroelectric power plant once complete.
As part of its commitment to expand fuel diversity, Tennessee Valley Authority replaced its two oldest coal-fired units at the Paradise Fossil Plant with a natural gas-fired power plant. Kiewit was selected as the EPC contractor for the new 3x1 combined-cycle facility, which now generates 1,100 MW of power.