Haggerston West & Kingsland Estates had a reputation as being among the most run down in the capital and as part of a £150 million regeneration Vital Energi designed and installed a CHP system and District Energy Network to bring more affordable and environmentally friendly energy to residents.
Ian Whitelock, Joint Managing Director, Vital EnergiPre-insulated TwinPipe is being used for the district heating networks because it is the most thermally-efficient type of district heating pipe and significantly reduces heat loss.
Each of the estates’ energy centres will contain a 200kW Combined Heat and Power (CHP) engine, a 25,000 litre thermal store and three back up gas boilers (3 x 850kW in Haggerston and 3 x 700kW in Kingsland), to act as back-up during peak periods of demand.
Vital Energi is also installing pre-payment meters and a fixed meter reading network which will allow residents to pay for the heat and hot water they use and help them control consumption.
It will also save the estates an equivalent of 233 tonnes of CO2 each year. That’s a 34 per cent saving compared with conventional gas boilers and equivalent to the annual electricity use of 26 homes.
One other essential feature of our vCOMS system is that it accurately measures and monitors savings. This is vital on a contract which has an energy performance contract as the client needs robust, audited data to ensure the KPIs have been achieved. The vCOMS system ensures we have the accurate data to issue reports and monitor actual performance against the expected design performance.
Overall, the energy conservation measures will save a guaranteed £184,000 per year, achieving project payback in under 6 years and then generating profit savings into the future. The biggest driver for the University, however, was to lower CO2 emissions; the first phase of works will reduce carbon emissions by 543 tonnes per year which equates to a 6.3% reduction across the buildings included in the scheme. In addition to energy savings, these works have saved 300kW of our daily electrical peak and this has meant we have been able to build an extra building, without having to upgrade the campus electrical supply.