Dont Waste the Waste: the Economic Opportunity to Harness Waste
Streams, Reject Heat & Integrate Local Energy Sources
Slide 2
. of ecosystems are now damaged or being used
unsustainably
Slide 3
What is District Energy? Historically, the fundamental idea of
district energy has been simple; reusing and sharing surplus energy
between buildings that would otherwise would be wasted. produce
steam, hot water or chilled water centrally involves shared heating
or cooling infrastructure to a group of buildings it can serve from
as few as 2-3 to as many as 2000 buildings electricity is often
produced by a combined heat and power and the "reject heat" that
results from burning fuel to produce electricity is used in the DES
Modern district energy can encompass much more: is not exclusively
about heat or surplus energy district solar PV system can serve
several buildings, even if no heat involved about local production
and consumption, only not at the building level..
Slide 4
. The Opportunity: Why District Energy? The growing cost of
energy; concern about energy security; and the threat of climate
change are increasingly focusing attention onto district energy
systems. The top three reasons cities are choosing district energy:
CO2 Mitigation Potential: Delivers the Cost Effective and Deep
Reductions A Way to Capture Waste Streams, Reject Heat and Local
Energy Resources to Spur Economic Development Using City
Authorities: Area of Climate and Energy Action in which Cities have
the most Control to Enforce Policy Targets (e.g net zero/plus
building codes) A lot of cities are frustrated by the fact that
they dont have their own utility and beholden to the state run
energy. What is so great about the district energy approach is that
every city is the land-use authority and can use their capacity in
their land use approvals to require district energy projects
Vancouver, Canada
Slide 5
District Energy Benefits Resilience and Adaptation energy
security and local production not solely dependent on a single
source or imported fuel supplies reduced reliance on potentially
vulnerable centralized grid (underground pipes safe from weather
storms) Recovering heat sources enable chilled water for cooling,
avoiding the need to use electricity and/or new fuel inputs. GHG
Mitigation Potential at Least Cost can avoid over 35 GT of CO 2
emissions by 2050 at least cost, and deliver 58% of CO2 emission
reductions required to stay within 2-3C emissions to the
environment are approximately 30% less conventional district
cooling can reduce CO2 emissions by 75% vs. electrical chillers
improved local air quality and health Energy Efficiency Gains and
Financial Savings up to 80-90% efficiency primary energy savings of
30-45% compared to conventional generation reduce network losses
and defer/reduce upgrade cost for distribution grid achieve net
zero energy buildings in a cost-effective way Local Economic
Development diverse business and finance models incl. public,
private, cooperatives shows an ROI of 8-10% and cost competitive
with traditional heat /power more optimal on-site RE strategies
balance renewables, store and sell excess electricity
generation
Slide 6
Bromlla is a small town in Sweden that uses surplus heat from
the local pulp and paper industry to provide secure, inexpensive
and climate friendly heating to half the population. Toblach is a
community in Italy that launched a biomass-based district energy
cooperative with 14MW of heating capacity and 1.5MW of electrical
capacity from organic biomass CHP, serving 900 customers.To
strengthen the link between energy use and local, family-owned
forests, the system pays local farmers 75 percent more than the
market rate for biomass feedstock. Rates have remained flat for 15
years Masdar Citys district cooling system involves pumping chilled
water from central plants to buildings across a wide area will be
up to 60% more efficient than conventional air conditioning,
achieved by combining state of the art technologies including
geothermal and solar thermal energy, and chilled beams/floor slabs.
Kidapawan in the Philippines approved construction of the citys
third geothermal district energy plant in 2012. Recently district
cooling systems have also been developed in cities in Saudi Arabia,
Qatar and Malaysia, Hong Kong and Singapore. District Energy St.
Paul has shifted from coal to local urban wood waste as primary
fuel and is integrating solar thermal to provide low carbon heating
and cooling to the majority of buildings in the Minnesota state
capital, avoiding over 240,000 tons of CO 2 emissions annually. The
Opportunity: Viable at Any Scale
Slide 7
Energy Mapping and Infrastructure Planning starting point to
assess opportunities, establish economic and technical viability,
tailor policies and business models, engage stakeholders and inform
an overarching strategy Land-Use Policies help aggregate, provide
or guarantee minimum demand for developments, provide investor
security, alleviate financial risks and give guidelines for urban
development plans to consider district energy community energy
plans service area bylaws designate areas for district energy
service providers public and private rights-of-way and easements
for DES installations connection mandates and compatibility
requirements development cost charges zoning to encourage high
density and mixed use Stakeholder Engagement Policies bring
together the different actors necessary for DES deployment
(capacity building) and facilitate community buy in (awareness)
training programs and designation of central office or champion
communication campaigns and outreach on benefits and suitable sites
coordination across departments and with neighbouring cities and
Policy for DES: From Energy Mapping to Land- Use
Slide 8
Call for Input and Review: UNEP, ICLEI, UN Habitat Guidebook
Visit the UNEP website (link provided to private area) to provide
input on best practice policies, good practice examples and
recommendations for the excerpt and final publication Feature your
cities or project as a best practice See your questions and
concerns addressed Supporting a larger effort on low-carbon
development on the city level and will also serve as guidance for a
cities for cities twinning process on energy. Synergies are being
explored with the UNEP Global Initiative on Resource Efficient
Cities (GI- REC) launched in June 2012 at the Rio+20 Summit. UNEP,
UN Habitat, ICLEI Guidebook: Policies for District Energy
Deployment in Cities
Slide 9
GI-REC: Global Initiative on Resource Efficient Cities.
Objective: To enhance the quality of life in urban areas, in
particular in rapidly growing cities in developing countries, while
minimizing resource extraction, energy consumption and waste
generation, and while safeguarding ecosystem services District
energy helps cities achieve resource efficiency through reduced
energy use, better waste management, and the provision of green
infrastructure. District energy systems resemble the circular
metabolism approach of natural ecosystems that use outputs of
various processes as inputs for others such as allowing in the
recovery of heat, otherwise wasted.
Slide 10
Global Initiative for Resource Efficient Cities. UNEPs Approach
to Resource Efficient Cities
Slide 11
Global Initiative for Resource Efficient Cities.
Slide 12
Global Initiative for Resource Efficient Cities.
Slide 13
Cities 4 Cities to Accelerate DES Deployment The Cities 4
Cities Twinning will bring together champion and learning cities
to: share their policies and experiences assist each other in
policy planning and DE strategy development engage in a
collaborative process with public and private sector stakeholders.
Private Sector will offer energy audits to cities interested in
advancing DES Global and local businesses can commit to
participation in collaborative policy roadmap development and
participation in pilot projects. Partners already Include:
Vancouver, CA; London, UK; Copenhagen and Denmark; Accenture;
Ramboll, Danfoss; Siemens, UN Foundation; UN-Habitat, ICLEI
Slide 14
Invitation to Join Public-Private Collaboration on DES Building
on this momentum, UNEP, UN Habitat and ICLEI are working towards a
summitable commitment on district energy that could be put forward
to the SGs Climate Summit U.N. Secretary-General Ban Ki-moon
appointed former New York City Mayor Michael Bloomberg as his
special envoy for cities and climate change. Ban Ki- Moon said
Bloomberg will assist him in: consultations with mayors and related
key stakeholders, in order to raise political will and mobilize
action among cities as part of his long-term strategy to advance
efforts on climate change. Inviting more actors on board as
partners to this Cities 4 Cities process for DES deployment in
support of the Sustainable Energy for All initiative (SE4All), as
the member of the Advisory Board on the level of the UNEP ED and as
a co-lead on the SE4All High Impact Opportunity on Energy
Efficiency in Buildings This is in light of the UN Secretary
General's SE4All initiative, which has three main objectives:
universal access to energy, double the share of renewables in the
global energy mix, and double the global rate of energy
efficiency.
Slide 15
A world of opportunities Resource efficiency Energy efficiency
Renewable energy At individual level: The Consumers At buildings
level At District and Community level At City level SE4All, COP
2015, 10 YFP on SCP, SDGs; Partnerships, PPP Joint us in
Cities4Cities