Keltbray is currently working as a Principal Contractor on Norwich Victoria sidings, a project located just outside of Norwich. The scope of works is to install new sidings with associated OLE signaling and telecoms together with a depot facility. Keltbray had been contracted by Greater Anglia as a principal contractor to Network Rail, responsible for the multidiscipline design and build of the train sidings at Norwich Victoria. Keltbray started the project at the beginning of the year and is due to complete in early 2020.
As there is no access to mains electricity at the site, Keltbray was using a diesel-powered generator to produce energy for the Norwich site. The diesel generator ran 24 hours a day, seven days a week, resulting in costly bills and significant carbon emissions. This led to the team taking action to acquire a solution that would be eco-friendly and sustainable.
In June 2019, Keltbray discussed what other options were available with their site power provider who recommended our gridtogo™ battery storage system as an efficient and environmentally friendly solution.
“In June 2019, Keltbray discussed what other options were available with their site power provider Speedy Services whom recommended using a gridtogo battery storage system from Off Grid Energy who specialise in hybrid power systems that provide efficient and environmentally friendly solutions. Off Grid Energy, help to provide temporary and permanent power solutions for Off Grid sites where the mains electricity grid is weak or unavailable. Off Grid Energy not only monitors energy consumption but has also created this product to aid Keltbray to control the running of generators more efficiently, resulting in the reduction of fuel use, emissions, noise and cost.”
Our gridtogo™ system meant Keltbray could monitor energy consumption and we also created a bespoke product to aid Keltbray to control the running of generators more efficiently, resulting in the reduction of fuel use, emissions, noise, and cost. During the day the generator ran, as usual, to support the site in supplying electricity and heating for the canteen, welfare, and stores. However, as the energy used overnight on the Norwich site was far less than that in the day time, Keltbray was able to set up the generators so that the battery system automatically turned off the generator and delivered power silently, using zero fuel and emitting zero carbon until the next morning.
Lowered the carbon emissions by 46tCO2e
in the first three months. It has been proven to reduce carbon emissions in line with Keltbray’s core values of commitment to wellbeing and innovation in engineering.
LOWER FUEL CONSUMPTION
Since the system was installed Keltbray has reduced the running hours by 50%the reductions in fuel consumption and maintenance saved £13,774.94 in running costs.
The Norwich project is the first of Keltbray’s projects to use the hybrid power system and after monitoring and evaluating the benefits of the generator, Keltbray is intending to install more energy-saving generators on to more sites and future projects
REDUCED MAINTENANCE COSTS
With the battery system requiring virtually no maintenance and a significant reduction in generator running hours, the costs for maintenance are significantly lowered. What is more, better utilisation of the generator means that it is more reliable.
By reducing the running hours of the generator by 50% and utilising the silent battery power at night, the noise pollution was therefore reduced by 50% per day.