Households Building Industry Transport
You are at: Home » Programmes  »  Public Sector Taking the Lead in Environmental Sustainability

Programmes

print friendly iconPrint friendly
  Connect with us! youtube RSS
 

Public Sector Taking the Lead in Environmental Sustainability (PSTLES)

Public Sector Taking the Lead in Environmental Sustainability (PSTLES)


The public sector is committed to take the lead in environmental sustainability and adopt a long-term view in resource efficiency. This is the impetus behind the Public Sector Taking the Lead in Environmental Sustainability (PSTLES) initiative that was introduced in 2006. Under the PSTLES initiative, public sector agencies have been encouraged to put in place environmental sustainability measures that encompass energy efficiency, water efficiency and recycling.

In 2014, the PSTLES initiative was enhanced to encourage agencies to focus attention on sustainability outcomes and to put in place organisational processes to manage resource use. Some of the key enhancements include requiring each Ministry to appoint a Sustainability Manager, set sustainability targets for FY2020 and develop a resource management plan to meet the targets.

Improving energy efficiency is a key thrust under the PSTLES initiative. To ensure that the expected energy savings are realised, public sector agencies are encouraged to adopt the Guaranteed Energy Savings Performance (GESP) contracting model when undertaking building retrofit projects.

Environmental Sustainability Measures for Public Sector



Resource Management

  • Sustainability Target:
    All Ministries are to set FY2020 targets for energy, water and waste. Agencies are also encouraged to set a FY2020 installed solar PV target.    
  • Resource Management Plans:
    All Ministries are to submit Resource Management Plans (RMPs) that document their sustainability targets and the resource conservation measures to achieve these targets.

    All owners of public sector premises are to submit information on their annual resource consumption.
  • Appointment of a Sustainability Manager:
    Each Ministry is to appoint a Sustainability Manager (SM), who will oversee environmental sustainability efforts within the Ministry and its Statutory Boards, including the RMPs. 


Green Buildings

  • New and existing buildings:
    New public sector buildings with more than 5,000 m2 air-conditioned floor area, including buildings with development cost fully or partly funded by the public sector, must attain the Green Mark Platinum rating.

    All existing public sector buildings with air-conditioned floor area exceeding 10,000 m2 must attain the Green Mark GoldPlus rating by FY2020.

    All existing public sector buildings with air-conditioned floor area below 10,000 m2 and gross floor area exceeding 5,000 m2 must attain the Green Mark Gold rating by FY2020.

  • Office Premises:
    All new public sector office premises or those that undergo major renovation are to achieve at least a Gold rating under the Green Mark for Office Interiors scheme.

    Office premises that do not fall under the above category are to retain the Eco-office Green Office Label till their next office renovation.

  • Tenanted Office Premises:
    Public sector agencies that lease office spaces are to lease from buildings with at least a Green Mark GoldPlus rating when their current lease expires.

  • Events and Functions:
    Events and functions organised by public sector agencies are to be held in venues with at least a Green Mark Certified rating from 1 Jan 2015 onwards.


Energy Efficiency

  • Indoor Air Temperature:
    Public sector agencies must ensure that the indoor temperature of their air-conditioned premises is maintained at 24°C or higher.

  • Metering:
    Data centres with more than 1,000 m2 GFA are to install separate meters, and monitor and report their energy use.

Water Efficiency

  • Water Efficient Building (WEB):
    All new and existing public sector premises are to achieve water efficient flowrates / flush volume and attain Water Efficient Building (WEB) (Basic) certification respectively.

  • Water Metering:
    All new public sector premises which consume more than or equal to 36,000 m3/year of water are to install private water meters at key water usage areas.

    All existing public sector premises which consume more than or equal to 36,000 m3/year of water are to install private water meters at key water usage areas by June 2015.
          

Waste Management

  • Recycling:
    Public sector agencies are to implement recycling programmes which include initiatives to recycle paper, plastics, aluminium and toner cartridges.

  • Waste Reporting:
    Owners of large public sector buildings with a gross floor area greater than 10,000 m2 are to monitor and submit the weight / volume of waste disposed of and the weight of recyclables collected annually.

Green Procurement

  • Public sector agencies are to procure the most cost-effective appliances, taking into account life cycle costs. New office information and communication technology equipment procured must meet the latest Energy Star standards. For electrical appliances that are under NEA's Mandatory Energy Labelling Scheme, public sector are to procure appliances of higher tick ratings (e.g. lamps and air-conditioning are to be rated at least 3 ticks).

  • Public sector agencies are to also procure white printing paper that are accredited with the Singapore Green Label by the Singapore Environment Council.
       

    Guaranteed Energy Savings Performance (GESP) Contracts



    Current Situation

    Building owners often carry out a 1-for-1 replacement when their equipment reach the end of their life spans. By not considering life cycle cost, energy and cost savings cannot be maximized. Even if a life cycle approach is taken in making investment decisions, the current procurement contracts may not be able to deliver the expected improvements because:

    1. There is no assurance of improved energy performance after the retrofits
    2. There is a lack of accountability as different parties are involved in the selection, specification and the installation of equipment.
    3. Performance of the new equipment is not verified and tracked over the long term.

    GESP Contracts in Public Sector

    Public sector agencies are encouraged to adopt the Guaranteed Energy Savings Performance (GESP) contracting model when undertaking building retrofit projects. Under the GESP contracting model, an accredited Energy Services Company (ESCO) is engaged to:

    1. Carry out an energy audit and identify energy savings measures
    2. Implement the recommended energy savings measures
    3. Guarantee the chilled water plant or air-conditioning system efficiency, and the annual energy savings from the implementation of other energy savings measures over the contract term (i.e. typically 5 years)
    4. Provide comprehensive maintenance to the retrofitted equipment during the contract term for better accountability

    The ESCO is responsible for the entire project from audit to post-implementation monitoring and maintenance. With ESCO guaranteeing the performance of systems, building and facility owners are thereby assured of the guaranteed energy performance savings during the contract term. A permanent monitoring system with specific accuracy requirements is also installed for long term and continuous monitoring of the performance. An overview of what GESP contracting entails can be found here (PDF, 1.11MB).

    Benefits to Public Sector

    As of March 2017, 28 large building owners have called GESP contracts for their building retrofit works. On average, these GESP contracts help building owners save 16% of their total electricity use, enabling public sector to save a total of $8.5 million annually.

     
     
    Last Updated on : 07 November 2017
    © 2012 National Environment Agency