
Our target is to cut carbon emissions by at least 50% relative to 2005 levels through energy-efficient building design, the application of the latest technologies and connection to a site-wide Combined Heat and Power (CHP) driven hot water distribution network.
All buildings will connect to the hot water distribution network which will be fed from the Energy Centre (see picture above). The power generated at the CHP plant will also be used to supplement supplies from the National Grid.
The cooling demands of the office buildings, which represent the largest energy requirement on the site, will be met by a combination of absorption chillers fed from the district heat network (tri-generation) with any extra demand met from efficient mechanical chillers. Cooling systems will use the best chilled beam technology in order to minimise energy use.
We are also using other renewable technologies, including roof-mounted wind turbines, photovoltaics, ground source heat pumps and solar thermal systems for generating hot water.
Overall
Site-wide Environmental Management System
Commitment to a comprehensive Code of Construction Practice
Integrated Environmental Sustainability Strategies
New buildings to achieve minimum BREAAM "Excellent"
Green and brown roofs
Sustainable urban drainage (reducing peak discharge)
New habitat areas with native planting
Reduced energy demand
Carbon emissions from buildings at least 5% below Building Regulations before adding in renewable energy and Combined Heat and Power (CHP) benefits
Efficient Energy Supply
Site-wide district heating using CHP system providing a low-carbon supply
On-site Energy Centre
Absorption cooling/trigeneration
Fuel cells
Decentralised and future proofed
Renewable energy
Wind turbines
Ground source heat pumps
Photovoltaics
Solar water heating
Biomass boilers (once cost effective and secure supply)
Carbon Fund to support application of new technologies
Construction/Materials
Waste minimisation
Re-use existing on-site material
Modern methods of construction
Targets for green material
Water
Reduced demand via high efficiency appliances
Groundwater abstraction
Greywater and blackwater recycling
Rainwater harvesting
Transport
Comprehensive green travel plan
City car club scheme
Bicycle user group
Travel co-ordinator
Our energy usage is at least 39% more efficient than industry "norms".