ANSALDO ENERGIA Power Generation Solutions

Turano Lodigiano 1 x 800 MWCombined Cycle Power PlantThe Turano Lodigiano/Bertonico power plant, situatednear Lodi in northern Italy, is owned by Sorgenia S.p.A.,an important private operator on the Italian market forelectric power and natural gas, with a strong focus onrespect for the environment and “clean” energy.The plant is located in a recently reclaimed industrialarea that was previously occupied by a refinery demolishedin the early 1980s, and there are plans to re-qualifythe surrounding area by developing industrial and artisansites nearby.In April 2008 Ansaldo Energia was awarded the EPC contractto build the power plant on a turnkey basis and aLong Term Service Agreement (LTSA) to maintain the 2gas turbines and relative generators. In 2009 the customer,based in part on positive experience gained at Turano,awarded Ansaldo Energia a similar contract for thesister plant in Aprilia (Province of Latina).The power plant comprises a combined cycle with twogas turbines and one steam turbine (2+1 configuration),delivering a nominal output of 800 MW.The work assigned to Ansaldo Energia as EPC Contractorincluded the design, supply, on-site installation, startupand testing of the entire power plant, comprising themain components in the power block.The turnkey supply of which Ansaldo Energia is in chargealso covers the gas station, the thermal cycle, the auxiliarysystems, including one auxiliary boiler and a waterdemineralisation and recover plant (ZLD), the HV, MVand LV electrical equipment, including one metal-cladgas insulated switchgear (GIS) for connection to theTerna substation, the plant automation system (DCS)and the design and implementation of civil works for theentire plant. Third parties commissioned directly by thecustomer developed the natural gas feeding system andthe high voltage electric substation.The distinctive features of the project are its focus onenvironmental issues and excellent operating flexibility,which are critical success factors for power producerstoday, who are faced with an ever more competitive marketand a society increasingly aware of environmentalproblems. A combined cycle solution plus Ansaldo Energiatechnology delivers excellent plant performance withlow atmospheric emission impact. The class 4 AE94.3Agas turbine with VeLoNOx burners has been successfullytested on other power plants and the base load efficiencymeasured during testing was higher than 57%,with CO and NOx emissions much lower than 30 mg/Nm 3 .The results of plant efficiency tests at partial load wereequally satisfactory. The management of water resourceswas also a key focus and the plant has a Zero Liquid Discharge(ZLD) water treatment system that reduces theinput of process water from wells, as well as a powerfulair condenser used to condense the steam without resortingto external water resources for cooling.Although the power plant is situated in an industrial areaaway from population settlements, the design meets