Energy use, and its associated greenhouse gas (GHG) emissions, represent our biggest environmental impacts. We constantly monitor our activities and look for ways to maximise our buildings’ energy performance and reduce energy use through design, technology and working with tenants.
Canary Wharf Group’s energy is supplied by Scottish and Southern. In 2012 we changed from purchasing a mixture of renewable and fossil fuels to purchasing 100% renewable electricity for our portfolio. Our supplies are now composed exclusively from renewable sources including wind, hydro and biomass.
We are constantly searching for areas to reduce our energy use, either by technology or behaviour. To ensure that our buildings – some more than 20 years old – remain fit for purpose, we set annual energy reduction targets, measure our energy use using half-hourly meter readings, and identify, explore and address excessive energy use through monthly energy reports, which are reviewed by the director of building management and building managers.
In 2015, Group-level energy use rose by 18% to 97.4m kWh, as Crossrail and 25 Churchill Place were added to the portfolio. However, consumption per occupant/ visitor across comparable office and retail buildings fell 6% and 9% respectively, testimony to the numerous actions that were taken to mitigate increases in energy use. We carried out a major upgrade to lighting, installing LED lights in the Jubilee Place and Cabot Place malls. Together with a similar installation in the Canada Place mall in 2014, this replacement programme is expected to save over 3.7 million kWh per year, a 65% reduction in energy use that is equivalent to the average lighting requirements of 5,140 UK homes.
In addition, our developments incorporate energy-efficient systems and photovoltaic arrays, such as at the installation at 25/30 Churchill Place. This system produced 15,589 kWh in the final four months of the year, helping us create renewable energy.
Climate change represents a serious risk to the future of the built environment and to business continuity. In the future, we are expected to face warmer, wetter winters, hotter, drier summers, rising sea levels and an increase in extreme weather events.
In 2015, we set up a protocol that will help us to understand the resilience of our projects to climate change impacts. We have started to work with our design teams to evaluate the potential risks and effects of climate change on future developments by creating climate change adaptation risk assessments. We have also formed strategies to reduce these effects by implementing viable design solutions for climate change mitigation over the lifetime of our developments.
By identifying the impacts, risk, adaptation and mitigation measures that will be implemented to kerb the effects of climate change on our projects, we are demonstrating how our buildings are to be future proof.
We constantly monitor all our impacts, including the transportation of materials to and from site, and the GHG emissions of our developments. We keep records of our environmental impacts using the online system developed by BRE.
Through our own energy-saving initiatives across the Estate, and by helping our employees and tenants to be more efficient, office and retail GHG emissions dropped 7% each; and infrastructure and car parks fell by 32% in 2015.
Emissions from office buildings fell by 7% to 1.14 tCO2e per occupant, while emissions from infrastructure and car parks fell to 0.02 tCO2e, a drop of 33%. Retail emissions intensity has only seen a 7% increase despite an additional 100,000 ft2 of retail space with the arrival of Crossrail Place. For CWCL, our CO2 emissions rose in 2015, from 1.62 tonnes per £100,000 to 2.94 tonnes, meaning that our target of 2.0 tonnes was not achieved. This was due to the majority of our projects at heavy civil stage resulting in increased fuel consumption. Our current projects are achieving around a 25–30% improvement on the 2013 Part L Target Emission Rate.
The installation of LED lighting in three of our shopping malls and their associated car parking areas resulted in an estimated reduction of 1,860 tonnes of CO2 emissions a year, equivalent to 5.7 million miles of car journeys.