Energy Reduction and Management Strategy
The core activities of CDL’s business are energy intensive and electricity constitutes a significant proportion of our operating expenditure. Improvements in energy efficiency will thus enable us to reduce cost and improve our operational efficiency. Integrating energy efficiency considerations into the design and construction of our assets can also help to reduce the energy usage (and electricity costs) of our customers, tenants, and residents.
Lifecycle Approach of Energy Management
Initiatives to maximise energy efficiency and increase energy conservation are applied across our key business units and at various stages in a building’s lifecycle. Each business unit adheres to guidelines that detail the strategic initiatives, performance standards, and specific requirements relating to energy efficiency and climate change mitigation measures. These guidelines are embraced through the various stages of the development of a building from the design, construction to the operation of the asset.
|Stage in Project Lifecycle||KEY ENERGY MANAGEMENT INITIATIVES||Benefits|
|Design||Maximising natural lighting||Reduce electricity consumption|
|Increasing natural ventilation to reduce heat gain|
|Incorporating solar and BIPV panels for common areas, where applicable||Reduce reliance on the grid and lower carbon emissions|
|Using energy efficient lightings in all common areas||Reduce electricity consumption and cost|
|Incorporating energy efficient home appliances in the units|
|Construction||Using electricity directly from the power grid supply to reduce reliance on diesel generators||Reduce emission levels of carbon, sulphur oxides, nitrogen oxides and particulates|
|Operation of Assets||Identifying high energy consumption installations and their respective energy management opportunities, e.g. chiller upgrading or lifts modernisation||Reduce electricity consumption|
|Installing sub-metering system to provide data granularity and identify energy management opportunities||Enhance the monitoring and control of building management equipment (e.g. heating ventilation and air conditioning, elevators) to reduce energy use|
|Leveraging advanced management systems to enhance building performance, e.g. energy management system to optimise chiller efficiency and building management system to control key equipment in buildings|
|Generating on-site renewable energy, where possible, through installation of solar and BIPV panels||Reduce reliance on fossil fuel and lower carbon emissions|
Energy Reduction Initiatives
Since 2004, CDL has retrofitted all our managed buildings by upgrading chiller plants, introducing motion sensors, installing energy efficient lighting, and recladding facades. On average, these efforts have yielded an estimated annual energy savings of around 17.7 million kWh, equivalent to more than S$4.1 million of cost-savings in 20191. We have also incorporated climate-resilient design and installations, such as green roofs and vertical green walls, into our investment properties to reduce heat gain and mitigate urban heat island effect.
CDL actively engages our tenants to raise awareness and encourage adoption of energy conservation measures. In partnership with Tuas Power, we introduced the automated meter reading portal initiative in 2014 for our tenants to monitor their electricity use on a near real-time basis. This empowers our tenants to keep tabs on their individual units’ energy consumption and formulate initiatives to achieve energy savings. In addition, incentives from both Tuas Power and CDL are granted to tenants who achieve substantial reductions in electricity consumption.
Key Energy Reduction Initiatives in 2019
|Energy Reduction Initiatives||Buildings||Savings|
|Energy efficient lighting||Palais Renaissance, City Industrial Building, Cideco Industrial Complex||65,208 kWh/year, equivalent to almost $15,371/year|
|Air conditioning upgrading or improvement||Central Mall Office Tower||23,829 kWh/year, equivalent to almost $5,617/year|
Energy Reduction Target and Performance
As part of our EHS and ISO 50001 Management Systems objectives and push for continual improvements in our energy performance, CDL has been tracking and reporting our environmental performance against our energy targets since 2007.
In 2019, there was an increase in energy intensity for our managed buildings as compared to 2018 due to recent changes of the company’s asset management portfolio and tenant mix in a few properties such as Republic Plaza. As part of CDL’s holistic energy management strategy, we regularly review the energy reduction and efficiency plans for all our properties and introduce initiatives where areas for improvement are identified. For instance, plans are underway to incorporate more advanced energy efficient air handling units and upgrade instrumentation at selected properties.
TOTAL ENERGY USAGE OF CDL’S CORE OPERATIONS IN SINGAPORE (MWh)
|•||Electricity consumption attributed to renewable sources from the purchase of RECs has been excluded from purchased electricity to avoid double counting|
ENERGY USAGE AND INTENSITY OF CDL’S CORE OPERATIONS IN SINGAPORE
|•||Purchased electricity intensity here includes the electricity consumption attributed to renewable sources from the purchase of RECs.|
TOTAL ENERGY USAGE OF CDL’S CORE OPERATIONS IN SINGAPORE AND SIX KEY SUBSIDIARIES (MWh)
Aligned with our reporting scope for GHG emissions, CDL also reports on the energy data of our subsidiaries. The tracking and reporting of our subsidiaries’ energy data not only ensures greater disclosure and accountability, but also enables the Group to better manage energy usage as a whole.
|#||From 2018, energy from fuel consumption has been included in the data reported|
|*||Data represents Le Grove Office only. Le Grove Serviced Residences was closed for renovation from December 2016 to July 2018.|
|**||Operations of Ingensys is added upon acquisition by CBM in 2019.|
|1||Energy savings is estimated based on product specifications and ratings. Average electrical tariff in 2019 was $0.2357/kWh based on figures at www.spgroup.com.sg|