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A construction site in Dublin was facing practical and political obstacles for works to be carried out on a busy main shopping street. Creating little disruption was key to ensuring shop owners and local residents could go about their regular business like any other day. The disruption of refuelling a diesel generator to power the site would be unacceptable along with the noise and pollution emissions that would be created.
Essential loads were maintained on site at all times to power welfare facilities during the busy daytime and a reduced demand at night. Two office modules, one drying room, one canteen and two toilet blocks also needed to be supplied with energy. Energy consumption was driven by heating, lighting and general office loads together with welfare and catering. Power tools and equipment for the work itself also needed energy while water pumps needed to be catered for.
The solution installed featured a 30kVa gridtogo™ unit linked to a 60kVA diesel generator. Recharging of the unit by the generator occurred during the day with the generator also powering site needs. During non-work hours and weekends, the battery storage unit powers the load without the noise and emissions that would have been created by the generator.
The hybrid power system created improvements in generator fuel efficiency that resulted in fuel consumption savings of 609L each week.
Employing the gridtogo™ allowed a reduced dependence upon the generator but enabled the site to have 24/7 power with the least possible environmental impact. Any potential political problems were eliminated thanks to the hybrid solution as it met environmental regulations if mains power is not an option.
Reduced Maintenance Cost
As our solution lessened the responsibility of the generator there was an additional monetary benefit as maintenance costs were minimised.
The site works did not hinder the normal running of the business as power could be delivered to the site 24/7, with little noise pollution.