In 2002 Viridian successfully commissioned its first high efficiency 343 MW Combined Cycle Gas Turbine (CCGT) power plant located in the Huntstown Quarry adjacent to the M50 motorway north of Dublin City.

 

In October 2007 ahead of the development of the all island Single Electricity Market (SEM) Viridian commissioned its second CCGT power plant of 404 MW capacity on the same site without interruption to the continued operation of the first plant.

 

Complementing Viridians €500m power plant investment todate has been the development of its retail arm , that currently supplies c25% of the all island business to business sector with its energy needs.

 

• The Huntstown Power Plant Project began in 1997, as the Viridian’s direct response to Ireland’s rapidly growing demand for electrical energy.
• Huntstown Power Company was formed to be the first truly Independent Power Producer (IPP) in Ireland.
• Huntstown a Combined Cycle Gas Turbine (CCGT) plant was developed in two phases consisting of a Siemens 343 MW multi-shaft design and a Mitsubishi 401 MW single shaft configuration burning natural gas.
• Both plants can operate on distillate oil as a back up fuel source
• The use of a multi-shaft and single shaft designs has allowed for flexibility in operation while maintaining the highest levels of energy conversion.
• The Phase 1 Siemens V94.3(A)1 343 MW power module started commercial operation in November 2002 on time and budget and provided much needed capacity to the system during the critical winter period of 2002/3.
• It is among the most efficient and technically advanced plants in the Irish electricity system and has a key role to play in meeting Ireland's Kyoto commitments.
• The second plant consists of Mitsubishi 701F 401 MW power module which was commissioned on time and budget in October 2007 ahead of the introduction of the SEM.
• The combined output of the Huntstown Power Plant of 747 MW will provide up to 20 per cent of the total electricity fed into the national transmission grid system
• With the introduction of the SEM all power from the plants is sold into the wholesale electricity market servicing all electricity customers on the island.