SGC selected a route for the 38-mile transmission line and ultimately securing all easements or purchases of the land for construction. SGC completed the ISO interconnection study and assisted with negotiations and technical support of the Large Generator Interconnection Agreement (LGIA) with the utility. The electrical group designed and supported construction of the collector system, the substation, and the transmission line. The construction management group ensured compliance with all permit requirements through very demanding and environmentally sensitive areas during this phase of the project. The Stetson Project was completed and went on line in December 2008.
SGC provided survey services for the 38 mile corridor and project area, developing record documents for land transactions and assisting client by providing an ALTA/ACSM Title survey for the project together with plans for the transmission corridor. Survey assisted with construction layout of clearing limits and corridor structures, and worked with the client and contractors to help meet the aggressive construction schedule.
Stetson II is an expansion to the original Stetson project described previously. This expansion added 17 GE 1.5 MW wind turbines to the original facility. For this project, SGC provided electrical engineering and design for an 11-mile 34.5 kV over-built collector system that connected into the substation constructed for the original Stetson project. SGC provided electrical engineering design for the expansion of the wind farm substation which connects to Line 56, the 115 kV transmission line. The Stetson II Project was completed and went on line in December 2010.
SGC’s Survey Engineering group surveyed 2 entire Townships within which both Stetson I and Stetson II project areas were located. Survey provided construction layout services for the supporting collector facilities and ALTA/ASCM Land Title surveys critical to the developer’s success in obtaining financing for the construction of the project and again after construction for sale to new owners.
The Oakfield Wind Power Project is a proposed wind farm comprised of 34 GE 1.5 MW wind turbines; it is currently submitted and awaiting permit approval from state and federal agencies. SGC provided lead civil engineering services for this project overseeing the construction access road design, design of the operations and maintenance building, design layouts for the proposed substation and concrete turbine pads, and engineering for storm water management. SGC acted as the lead for electrical engineering, conducting complete facilities design; electrical collector line design; ISO interconnection coordination; and electrical design for the proposed substation expansion. SGC also acted as the lead in survey engineering efforts including mapping, layouts, and ALTA surveys to support land acquisitions. This project is in the permitting process.
The Town of Oakfield was surveyed in 1858 and SGC surveyors were able to obtain original survey field notes, allowing us to determine ancient boundary line locations for an area encompassing over 5,600 acres. They supported efforts by the developer to obtain easements and leases for eventual development of the project, as well as ALTA/ACSM Land Title surveys for when the project obtains financing.
The Rollins Wind Project consists of 40 turbines in two arrays connected by a 34.5 kV electrical collector system. The power is delivered to the ISO grid in Chester, Maine via a 9-mile stretch of 115 kV transmission line tapping into the 38-mile Stetson Line 56.
SGC provided the permit and final construction designs for the 115 kV transmission line, the 7.1 miles of 34.5 kV line for the electric collector system and a substation to transform the 34.5 kV to 115 kV for transmission. Additionally, SGC performed land acquisition for the turbine locations, collector system and transmission corridor right-of-way. Throughout the process, SGC provided surveying services required to support the extensive land acquisition and engineering design. The Rollins Project was energized in April 2011.
Provided detailed land surveys for determining appropriate location of transmission and connector corridors linking the Rollins Wind development to the38 mile transmission corridor. When completed the surveys covered an area totaling 11,000 acres in 5 townships, providing critical information in support of the design of the electrical systems and location right of way easements. ALTA/ACSM Land Title surveys were completed of all facilities in support of the developer’s successful efforts to obtain financing for the construction of the transmission line and project areas.
SGC performed a preliminary feasibility analysis, project assessment, and electrical engineering services for this 50 MW wind project utilizing 22 Siemens 2.3 MW turbines. SGC developed a preliminary one-line diagram for the collector substation based on the one line utilized in the System Impact Study. This one-line diagram was to be the basis for developing the preliminary substation layout of breakers, switches, and all other major devices used in the design. SGC also developed a preliminary plan view, permit level design for portions of the collector system which formed the basis for submitting a DEP application for a site location permit. SGC is currently preparing final construction designs for the collector and generator lead to the substation with construction planned for late 2011.
SGC provided electrical engineering and survey support for the Kibby Wind Power Project. This project is located north of Eustis, Maine and consists of 44 Vestas V-90 3.0 MW turbines. SGC’s electrical engineering and design effort on this project included the 34.5 kV electric collector system, a 34.5 kV to 115 kV substation, and a 115 kV underground transmission line. SGC performed survey work in conjunction with collector design, the substation construction and the underground transmission line. Performed field verification of as-built right-of-way, structure guy locations, line clearing and staking. The project was completed in late 2010.
The Longfellow wind project is a proposed wind farm that will utilize 18 to 20, 2.5 MW Clipper Liberty wind turbines. The project will require a 4.5 mile 34.5 kV electrical collector system that will deliver power to the grid via a transmission line that is also approximately 4.5 miles long. SGC assisted with preliminary project feasibility assessment as well as land and right-of-way acquisition for the transmission lines and turbine locations. SGC also assisted in coordination with ISO and provided surveying assistance for planning stage engineering design. Currently this project is in the preliminary phases and has not yet been submitted for state and federal permitting.
This Mars Hill, Maine wind project was the first utility scale wind project in the state of Maine. It consists of 28 GE 1.5MW turbines, 42 MW, 5.5 miles of collector, 50 MVA Collector Substation, 4 miles of 69 KV transmission line, and 3 Breaker Utility Ring Bus Switch Station . Current SGC employees were involved (prior to joining SGC) in development, design and construction. Currently SGC provides ongoing support to the project. The project was completed in March 2007.
SGC provided line design for 16 miles of 46 KV transmission line and distribution underbuild to support this 21 turbine, 63 MW wind farm located in Lowell, VT. The project is ongoing with construction planned for 2011-2012
SGC assisted Senergy EConnect Australia with the detailed electrical design for these two wind projects on separate sites in Victoria, Australia. The projects were designed simultaneously under a single contract. Combined, the two projects included 99 2MW Vestas turbines (31 and 68 turbines, respectively) for a total 198 MW. The scope of the projects included the design of the 33 kV underground collector systems for each project including cable sizing, routing and trench design. The design required coordination of cable routing with civil design and detailed coordination of conduit routing through the turbine foundations. In addition to the collector design SGC was responsible for the coordination of the switchgear at the base of the tower and design of trenchless installation methods under public roads.
In 2007/2008, SGC was engaged by First wind to perform a boundary survey of approximately 3,000 acres of land in northern Vermont that was under design for a 40 mW wind facility. Upon completion of the survey, property boundaries were incorporated into the preliminary design to better define the areas to be leased by the project. As the project progressed, the boundary survey was further developed into an ALTA/ACSM Land Title survey to support financing of the project for construction.
SGC’s survey engineers are currently assisting RMT, Inc. of Madison, Wisconsin with the construction layout of clearing limits, tower placement, substation layout, and other improvements. As features are constructed, SGC has also been charged with performing as built surveys to ensure compliance with design and applicable permits.
In May of 2010, RMT, a construction management firm with a focus on renewable energy projects, hired SGC to assist with the layout of geotechnical borings and equipment access ways that wouldn’t adversely impact environmental resource areas. Since that time, SGC has assisted with the reestablishment of wetland boundaries, layout of the electrical switchyard, layout of 115kV and 34.5kV transmission lines, and as built surveys of various improvements.
Proposed construction of a 27 turbine, 69.1 megawatts (MW) wind farm to be located in Carroll Plantation, Penobscot County, and Kossuth Township, Washington County. Services included the permit level design of a 34.5-kilovolt (kV) electrical collector system, an electrical collection substation, an Operations and Maintenance (O&M) building and other potential ancillary improvements associated with the foregoing. The turbines will be constructed on three ridges, and currently three turbine models are being evaluated. SGC also provided survey engineering services for the collector/transmission line, and planned the access roads for construction.
Services include preliminary turbine layout, preliminary civil engineering and preliminary electrical design for forty-three (43) 1.8 MW turbines, model to be determined. Preliminary design of three (3) permanent meteorological tower sites and associated construction access road system.