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Electric Authority of Georgia (MEAG) system description see project schematic here (requires Adobe SVG viewer) Mission: MEAG is a non-profit corporation representing 48 communities in the state that own and operate their own electric utility systems. Created by the 1975 Georgia General Assembly to provide a low cost, dependable source of electric energy to participant communities, the Authority purchased ownership interests in eight units at four of the state's most modern and efficient generating plants and began supplying wholesale power to the communities in February 1977. Staff capabilities, including engineering design and construction of transmission facilities, financial management, system wide budget preparation, billing and collection of wholesale power costs, marketing and community and industrial development assistance are available to each member city. MEAG shares ownership of the eight generating units with other power agencies in a unique arrangement, the state's power suppliers also own the statewide transmission grid. Although ownership interests are proportional to each supplier's share of the annual territorial peak demand, the joint owners may access the grid at any point in the state. Not only is this a critical requirement of delivering power to MEAG communities, it also means that a MEAG community can serve a large power customer directly from the ITS. This common transmission system provides the same high level of reliability of service for all electric customers, regardless of power supplier. The advantages of being supplied by a public power community are many. The use of tax exempt financing and non-profit status substantially reduces capital costs. Rather than paying shareholders, any profits from electrical utility sales go back into the community as capital improvements, increased levels of municipal services, reduced taxes and lower rates. Key system elements
Project description ACS was contracted to provide an upgrade to MEAG's current ACS HPM-9000 system to allow for the addition of approximately 100 EMS Remote Terminal Units (RTUs). Due to the load from processing communications to approximately 200 RTUs (100 existing and 100 new), it was determined that redundant FEP communications servers would be installed to process the communications to the RTUs. The existing SCADA servers were left in place to process the SCADA and DMS applications and the communications to fourteen (14) emulation cities. The system was also upgraded to allow for a distributed database. Redundant B132L workstations were installed as display servers. The display servers process the OI windows from the 8 remote MEAG SCADA cities and internal clients. ACS was also contracted to provide a WSCC interface to the MEAG SCADA system. Redundant D250 servers were installed to provide the capability of up to four (4) X.25 lines to communicate WSCC protocol to the MEAG system. MEAG enhanced their system to include a disaster recovery site. This allows MEAG to perform their critical operations in the event of a problem at their main operations building. The upgrade was accomplished through the installation of a D270 HP-UX server. System sizing
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Contents © 2008 Advanced Control Systems, Inc. All trademarks are the property of their respective owners. This site last updated: 17 July 2008. |