Case Study:

Irish Defence Forces
Haulbowline Naval Base


electricity usage Defence Forces Ireland

“It had been perceived that for some time the base substations were at risk of becoming overloaded as major loads were added without warning. With the information provided by ResourceKraft Advisor, it became possible to institute load management procedures to prevent major outages and reduce the electricity usage.”

Haulbowline Naval Base is a large Naval Base with an attached dockyard. The base has multiple legacy buildings and large quantities of relatively inefficient industrial machinery.

Electricity Usage was the biggest challenge:

In 2007, electricity usage amounted to over a half million euros. Quite apart from price rises, electricity consumption was set to increase by 20% in 2008.


Installation:

ResourceKraft metering systems were installed by contracted electricians on 10 separate three-phase sub circuits and 2 main incomers at two separate sub stations within the complex. The main incomers were rated at 1000amps per phase while the sub circuits were rated between 100 and 600 amps per phase. The installation took a total of 1.5 days and only involved 30 minutes of down-time during the installation on un-insulated busbars.

Energy efficiency rewards:

The major savings were in the reduction of the electricity utility bills, which was as early as 2008 were set to reduce by 30%. Another major impact was the increased understanding of where and when the electricity was being used meant that the utilisation if the substations could be closely monitored.

Report Card:

For the first time, it was clearly understood what was being used on the large sub circuits.

It was discovered that 10% of the users were consuming in the region of 90% of the electricity.

Before the installation The Defence Forces could only see the overall energy consumption once a month on two utility bills, but now they can clearly see:

  • When the electricity is being used
  • Where it is being used
  • How it is being used
“For the first time, it was made clearly understood what was being used on the large sub circuits.”