City
governments and communities face multiple risks related to energy production
and consumption. Those risks span the spectrum from economic risks, to
risks of power supply interruptions, to those risks related to environmental
conditions and human health.
Many of
these risks would exist even if climate change were of no concern.
Interestingly, however, the measures a city would take to reduce these risks
are often exactly what it would do to reduce the threat of global warming.
In fact, while reducing GHGs is often seen only as a morally important
policy position, the risk mitigation benefits that accompany a smart climate
protection action plan confer such important value to cities that they can
often convince skeptics to accept a climate protection program.
Climate protection and risk mitigation go hand in hand.
For a
variety of reasons, disruptions to power supplies are becoming more common.
Power blackouts are more than an inconvenience and an economic hardship.
They are also a security threat and a threat to human health.
In 2000 and
2001, California faced an energy crisis beset by rolling blackouts and
skyrocketing electricity and natural gas prices. From 1999 to 2000,
electricity costs in the state rose from roughly $6 billion to over $25
billion. Major utilities were forced into bankruptcy. Blackouts caused
hundreds of millions of dollars of lost economic output. Power intensive
industries, such as aluminum smelters and manufacturing, were shut down, and
the confidence of firms with high power-reliability requirements, such as
computer chip manufacturers, was shaken.
There were
multiple causes of the California
breakdown, including lower-than-expected hydro-electricity production in the
West due to drought conditions, higher-than-expected wholesale natural gas
prices nationwide, “market manipulation,” and an inadequately designed
deregulation plan. The system simply was not sufficiently robust to manage
human errors and unusual conditions, natural and otherwise.
In 2002, a
similar rolling blackout afflicted much of the upper Midwest and Northeast.
Power outages were felt in 11 states (over 80 million people) that took some
places more than five days to restore. Again, the blackouts caused untold
millions of dollars of lost economic output and discomfort for millions of
people, some of who required special medical attention.
The power
outages described above came from a variety of causes. However, climate
change is creating a positive feedback loop between increased power demand
in the summertime and more frequent and stronger summer storms likely to
cause regional power failures. As average summer temperatures rise, as they
have for the past 15 years, more utility customers are using electricity to
power their air-conditioning (AC) units, thus putting increased pressure on
power system summer peak loads. In fact, much of the need for the new
(often natural gas-fired) power plants in the past two decades has arisen to
meet growing summertime peak demand loads, largely driven by higher AC
usage. This increased demand for natural gas has been an important factor
driving up wholesale gas prices by close to 300% in the past three years.
Energy
consumers (especially the elderly or ill) will be come more dependent on AC
as summer temperatures increase, which will become increasingly expensive to
operate and increasingly likely to fail during heat-related storms.
Again,
these are not dystopian fantasies. In July 2006, the governor of Missouri
sent the National Guard to evacuate people from their sweltering homes after
storms knocked out power to nearly half a million St. Louis-area households
and businesses in the middle of a heat wave.
More than 90 people had died in the previous few days in California. Utility crews raced to restore electricity, and Illinois
Governor, Matt Blunt, declared a state of emergency, granting the St. Louis
mayor's request to send in 250 troops to take people to air-conditioned
public buildings and to clear debris.
“We can’t
overemphasize the danger of this heat,” Mayor Francis Slay said. “The
longer the heat goes on and the power is out, the riskier it is.”
Police used public-address speakers from their squad cars to announce
locations of the community centers and other places designated as cooling
centers. Volunteers went door to door, checking on people with no power to
run fans or air conditioners. Utility workers urged customers to find a
cool place to stay. They warned that power could be out in some areas for
three to five days.
Preparing
communities for the more extreme heat conditions in the summertime that can
be expected in a warming world is an important service public officials need
to do, and not something communities can expect their electric or gas
utilities to do for them.
The
energy-related risks that cities face, and which local communities can
(and arguably must) manage, covers a broad spectrum of issues, but
generally include:
-
Risks of blackouts and/or power
interruptions (due to system failure, natural causes such as severe
weather events, extended droughts and terrorist actions);
-
Risks of volatile or
higher-than-expected wholesale electricity, natural gas and gasoline
prices, causing economic hardship to ratepayers, customers and
commuters;
-
Risks to human health and ecological
resources that derive from point and non-point pollution sources and
increased temperatures;
-
Risks of greater liability and higher
insurance costs;
-
Risks of more expensive capital and
financing, due to increased concern from capital markets, lower bond
ratings or shareholder resolutions; and
-
The risk of increased or greater
regulation coming from federal or state law-making bodies regarding
greenhouse gas emissions or environmental protection.
Many of
these specific risks are borne by electric utilities. Cities with municipal
utilities have more authority to enforce regulations, ordinances and policy
resolutions on these issues than do cities or communities that are customers
of investor-owned utilities or rural cooperatives. Cities have to work
closely with both electric and gas utilities to create the most effective
and far-reaching incentive programs and information campaigns that make
sense for their region.
City
governments can also work independently of their utilities to manage these
risks. Some cities are levying taxes to fund energy efficiency programs
that augment and supplement utility efficiency programs. City governments
may also participate in utility regulatory commission hearings as
interveners and argue for sound, integrated resource planning that takes a
city’s local risks into formal consideration. A more detailed list of
remedies can be found below.
Many of
these risks can be managed on a local level if city governments and local
communities implement a sustainable energy plan. Doing this also confers
important direct, economic and quality of life benefits. Indeed, the
economic benefits alone would be cause for voluntary implementation. Given
climate change and increased vulnerabilities, the risk mitigation benefits
make it almost imperative.
The risk of
prolonged power outages due to system failure, natural causes, (such as
severe weather events or extended droughts), market manipulations and
terrorist actions or acts of sabotage are higher now than they were before.
Hotter summer temperatures, deregulation of the electricity sector, growing
peak demand and political instability have made utility grids more
vulnerable to failure or attack.
All energy
customers are subject to the vicissitudes of wholesale energy prices. When
coal or natural gas prices increase, utilities often raise their electric
rates and pass the costs through to their customers. Since 2001, dozens of
utilities across the nation have filed for higher electricity rates, often
citing higher natural gas prices as a driving factor.
Again,
climate changes can worsen these risks. Low rainfall or extended drought
can worsen the problem, as lost output from hydroelectric dams
(traditionally used to meet daytime peaks) produces more pressure on natural
gas-fired plants to produce energy, often driving short-term gas prices up.
Moreover, strong hurricanes can devastate gas refineries along the Gulf
Coast, where on any given month up to 70% of the U.S.’ natural gas is
refined and sent to market. The price of natural gas spiked right after
Hurricane Katrina hit the Louisiana coast and stayed high for most of the
following winter.
Fortunately 2005-2006 was not a severe winter.
Even
without storms, natural gas prices are particularly volatile. For example,
they shot up from an average of roughly $2.70 per million BTUs in 1999 to
$4.40 in 2000.
Again they went from an average of roughly $3.50 per million BTUs in 2002 to
over $5.20 in 2003. Over the past 20 years they have fluctuated about
10-15% per year, on average, and have gone upwards on average 5% per year.
This impacts customers in both their electric rates and monthly heating
costs. It also drives up the cost of commercial fertilizer to farmers and
the costs of other gas-derived products, which affects food prices and
trickles down to make everything more expensive.
Less
progress has been made in implementing and offering gas efficiency programs
than electricity efficiency. Cities can encourage and work with their gas
utilities to design and implement rebates and retrofit programs for greater
gas efficiency. Driving down the demand for gas and increasing reliance on
other resources are important actions cities can take to mitigate the risk
of higher gas prices. Energy efficiency and a more diversified energy
portfolio can hedge against such price volatility.
Cities also
need to take an interest in the types of resources their utilities plan to
install in the future to meet future load growth. Most utilities turn a
blind eye to the fact that natural gas prices are increasing nationwide, and
are still planning to construct large natural gas-fired generating resources
to meet demand growth in the 2006-2012 planning horizon. California, alone,
is looking at building over 15,000 MW of new gas-fired generation in the
next 5-6 years.
Though natural gas is less polluting than coal-fired generation, such
responses to load growth do not protect utility customers from volatile and
rising fuel costs.
The other
fuel that has gone up in cost, and much more visibly to the public eye, is
gasoline. Costs of gasoline at the filling station in the summer of 2006
were over $3.00 per gallon, or almost twice as much as they were two years
ago. Fuel costs to commuters have gone up significantly. Cities can help
their citizens save energy, save money and reduce their emissions by
increasing public transit and light rail. Issues related to transportation
are covered more fully in the best bets sections of Chapter 5.
Climate is the context for life on earth. Global climate change
and the ripples of that change will affect every aspect of life, from
municipal budgets for snowplowing to the spread of disease.
– Center for Health and the
Environment, Harvard Medical School
There is a direct relationship
between human and environmental health. There has to be. We breathe. We
drink. We eat food grown in the soil. We are only as healthy as the air,
the water, the ground and the climate around us.
Recognizing
this symbiosis over the decades, the federal government has implemented
regulations to protect parts of the ecosystem. Thanks to federal efforts to
reduce pollution from power plants and other sources, for example, fewer
Americans are dying today from dirty air.
The Clean Air Act, Clean Water Act and similar regulations are an
institutionalized acknowledgement that the environment influences public
health and that intervention often is needed to protect both.
There is no
doubt that global warming is a public health issue. “As the climate
changes, natural systems will be destabilized, which would pose a number of
risks to human health,” according to the U.S. Environmental Protection
Agency.
These adverse impacts are complicated by the fact that America’s population
is aging rapidly. Global warming is occurring just as the Baby Boom
generation reaches its senior years and becomes more vulnerable to health
problems.
The
potential impacts include the following:
Producing
energy has large impacts on water supply and the ecological integrity of
riparian areas. Extraction of coal, oil and gas causes massive
environmental harm, from disruption of ecosystems, to water consumption and
pollution, to spills and other forms of pollution. Large dams built on
major river-ways (particularly, but not limited to the Colombian and
Colorado River Basins) radically alter water temperature, sediment loading,
fish habitat, and stream flows.
Moreover, gas and coal-fired electric generation requires large amounts of
water for their cooling towers. Billions of gallons of water are used ever
year for cooling in gas and coal-fired plants. In the event of a prolonged
drought and a heat wave, water use may have to be carefully rationed between
several vital agriculture, energy and residential services.
During the
summer of 2006, more than 200 Americans died of causes related to the record
temperatures that extended throughout the country. In 1995, 465 people died
as a direct result of high temperatures in Chicago alone. Studies of
selected U.S. cities “indicate that the number of heat-related deaths would
increase substantially by the year 2050 under some climate change
scenarios.”
Dr.
Jonathan Patz, one of the nation’s top experts in the health effects of
climate, cites studies that predict a 3- to 4-fold increase in heat
mortality in large temperate U.S. cities, if current levels of fossil fuel
emissions continue.
Rising
temperatures will bring more heat-related air pollution, aggravating
cardiovascular and respiratory diseases, if we continue using fossil fuels
as we do today. “The net effect on human health from simultaneous exposure
to stressful weather and air pollution may be greater than the separate
effects added together,” EPA says.
Point and
non-point pollution sources as well as increasing mean temperatures
adversely affect human health. Point-source pollution (from electric
generating plants) includes sulfur dioxide, nitrogen oxides and mercury.
Over 50% of the sulfur dioxide (SO2)
emitted nationwide comes from coal-fired electric power stations, as do
roughly 25% of the nation’s nitrogen oxides emissions and most mercury
emissions in the U.S..
Close to 50% of the nation’s CO2
emissions derive from fossil fuel combustion for electricity production.
Sulfur
dioxide (SO2)
and nitrogen oxides (NOx) contribute to a variety of public health and
environmental problems, including asthma, emphysema and other respiratory
disorders as well as regional haze and ecological damage.
In addition to the health impacts discussed below, ecosystem damage and
regional haze adversely affect quality of life in urban areas, quality of
crop production in agricultural areas, and the health of pristine wilderness
areas.
Particulate emissions,
NOx and SO2 are national problems, but are particularly acute in the American
West, where visibility has been impaired in such prominent national parks as
the Grand Canyon.
Both SO2
and NOx react in the atmosphere to form compounds that affect human
respiratory and cardiovascular systems.
The respiratory effects associated with particulate matter include asthma,
decreased lung functioning, emphysema and bronchitis. Cardiovascular
effects include higher risk of heart attacks and cardiac arrhythmias.
Nitrogen oxides also contribute to the formation of ground-level ozone, or
smog. Ozone damages lung tissues and makes people more susceptible to
respiratory infections.
Mercury
emissions from power plants also have adverse human health and ecological
impacts. When mercury deposits in surface water, it can accumulate to toxic
levels in fish, and up the food chain in animals that eat fish.
Humans exposed to mercury contained in fish can suffer genetic disorder and
birth effects. In some states, the problem has gotten severe. In Montana,
for example, over 75% of lake acres are under fish consumption advisories,
almost all of which are attributable to mercury.
Due to
habitat shifts from changing climate, the risk of infectious diseases will
increase as warming allows disease-carrying animals, insects and parasites
to thrive where they could not survive before.
A 2005
study by the Center for Health and Global Environment at Harvard Medical
School of found that climate change will significantly affect the health of
humans and ecosystems and these impacts will have economic consequences.
It stated, "Warming and extreme weather affects the breeding and range of
disease vectors such as mosquitoes responsible for malaria, which currently
kills 3,000 African children a day, and West Nile virus, which costs the US
$500 million in 1999."
Lyme disease, the most widespread vector-borne disease, is
currently increasing in North America as winters warm and ticks proliferate.
The study notes that the area suitable for tick habitat will increase by
213% by the 2080s.
The Study’s
author, Dr. Paul Epstein, in a subsequent article in Forbes Magazine,
stated, "Climate change is already having a less conspicuous, but just as
dangerous, impact on humans and the natural systems upon which we depend. Of
immediate concern are the implications for human health. For example, asthma
rates have quadrupled in the U.S. since 1980. Recent research reveals that
rising carbon dioxide--itself, the driver of photosynthesis--stimulates
ragweed and some flowering trees to produce an inordinate amount of pollen.
Some soil fungi produce many more spores when grown under conditions of
elevated CO2.
These "aeroallergens" are carried deep inside our lungs by diesel particles
common in urban areas. This unwelcome synergy may be contributing to acute
and chronic lung disease. And this factor will grow stronger in a world with
increasing levels of CO2.
Another cause of respiratory disease: Dust clouds emanating from
Africa's expanding deserts. Drought in Africa exacerbates this factor, and
the clouds are propelled across the Atlantic Ocean by the pressure contrasts
between warmer, saltier tropical seas and cooler, fresher water from Arctic
and Greenland ice melting into the North Atlantic. The particles (and
microbes) in these dust clouds then settle into the lungs of children in
Florida and on Caribbean islands in which asthma rates have risen some
twentyfold in the past several decades. A rise in wildfires with
climate-change-exacerbated droughts are also projected to adversely affect
respiratory health.
Casualties
occur not only as the direct result of hurricanes, floods and other extreme
weather events, but also as a result of secondary factors such as the
contamination of water from the flooding of sewage treatment plants. Deaths
from storms include not only direct causes such as drowning, traumatic
injury, exposure and starvation, but also slow killers such as infections,
viruses and cancer.
Communities
have more power than they might imagine to minimize global warming’s threats
to public health. A team of health specialists led by scientists from Johns
Hopkins University and the Centers for Disease Control and Prevention
assessed the potential health impacts of climate change and came to
conclusions consistent with those cited above. But there is no reason for
“doom and gloom”, the team concluded, if we take action now.
First,
every community—and every energy consumer—should take immediate and
sustained steps to prevent global warming from getting worse. That means
decisive action to reduce the use of fossil energy—coal, oil and natural
gas—which emit the greenhouse gases that contribute substantially to climate
change. As described throughout this manual, energy efficiency is the first
and most cost-effective path. See
Chapter 5 for examples.
Municipal
governments can have an important influence on the greenhouse gas emissions
from the two biggest anthropogenic sources: vehicles and buildings.
Mayors can lead by acting upon the many suggestions contained throughout
this manual; turning city buildings and operations into models of energy
efficiency; pushing for implementation of local policies that encourage more
compact development to reduce the consumption of gasoline; and passing and
enforcing progressive energy efficiency codes for buildings, to cite a few
examples.
“Gains in
energy efficiency of 10 to 30% above present levels are feasible at little
or no cost through conservation measures, use of available technologies;
development of new energy technologies and better land management
practices,” EPA reports.
The next
step is to replace fossil fuels with clean, renewable energy resources, such
as solar power, wind power, geothermal energy and some of the cleaner types
of bioenergy. Among the other renewable energy actions mentioned elsewhere
in this manual, explore the possibility of obtaining energy from the methane
emitted by your local landfill. Many communities are taking this step.
Methane is one of the most potent of the greenhouse gas emissions that
contribute to global warming—23 times more powerful a heat-trapping gas than
CO2.
While it
may be many years before measures like these cause noticeable reductions in
global warming, they can produce immediate benefits for public health by
improving air quality, lowering energy bills (leaving more family income for
health care) and making buildings more livable during periods of excessive
heat.
Another
leadership opportunity for Mayors is to reduce the “urban heat island
effect”—i.e., higher temperatures in inner-city areas caused by paved
surfaces and dark-colored roofs. The air temperature within cities
typically is several degrees higher than in the surrounding countryside,
resulting in a nasty cycle: greater use of air conditioning, which
increases the use of fossil fuels at the power plant, which causes more
greenhouse gas emissions, which cause higher temperatures, and so on.
Among the
antidotes to the urban heat island effect are creating and maintaining
natural areas and engaging in urban forestry. For example, as part of
Denver’s most recent effort to reduce greenhouse gas emissions, Major John
Hickenlooper announced a “Greenprint” campaign in July 2006, including a
commitment to triple the city’s tree coverage by planting 1 million trees
over the next two decades. (That’s an average of about 137 tree plantings
each day for 20 years.)
The Center
for Urban Forest Research has found that parking lots occupy about 10% of
the land area in many U.S.
cities. Their dark surfaces are one of the causes of the urban heat island
effect—the higher temperatures that are found inside cities, compared to
surrounding countryside. The Center reports that the city of Sacramento,
where trees now shade only 8.1% of parking lot surfaces, has passed an
ordinance to increase shading to 50%. That requirement is expected to
provide Sacramento with $4 million annually in benefits for improved air
quality. Sacramento is also placing photovoltaic arrays over parking lots,
providing shading and generating electricity at the same time.
Communities
must adapt to the climate change effects that already are underway.
Adaptation measures include:
-
Improving the local public health
infrastructure;
-
Creating early warning systems for
severe weather and pollution;
-
Implementing stricter zoning and
building codes to minimize storm damage;
-
Improving disease surveillance and
prevention programs;
-
Educating local health professionals and
the public about health risks associated with climate change;
-
Changing how water infrastructure and
management to prevent contamination of potable supplies;
-
Undertaking steps to protect citizens
from high temperatures both day and night. That may include emergency
shelter for the most vulnerable citizens during times of extreme heat;
and/or
-
Remaining alert for new and better
information about the impact of global warming on their communities, and
translate that knowledge into local policies and practices that protect
public health.
Local
government can find cost savings and new revenue sources in some simple and
unexpected places related to climate protection.
There is no
perfect cure for the health impacts of the perfect problem. The
prescription will be made up of many different actions. One of the most
important, perhaps, is to educate residents and other leaders that health
and climate are linked. Among the many benefits that climate action can
bring to your community, none is more important than good public health.
Again,
these risks to human health and ecological resources can be mitigated by
lessening reliance on fossil fuels, increasing investments in energy
efficiency, distributed generation and renewable energy, by building more
efficient buildings, by driving more efficient vehicles, and by adopting
forward-looking energy management techniques.
City
governments, utilities and utility customers also face stricter regulation
coming from federal or state lawmaking bodies regarding both GHG emissions
specifically and environmental protection in general. Future regulations
may require decreasing the emissions of pollutants (SO2, NOx,
and mercury) or reducing CO2
emissions.
For example:
-
All of the Northeast and Mid-Atlantic
states are studying or implementing programs to reduce GHG emissions.
In April 2000,
New Jersey adopted a statewide goal of reducing GHG emissions to 3.5% below
1990 levels by 2005.
Similarly, the
New England governors and the Eastern Canadian premiers issued a Climate
Change Action Plan in August 2001, calling for the reduction of GHGs to 10%
below 1990 levels by 2020.
New York’s
State Energy Plan calls for the reduction of the state’s CO2
emissions to 5% below 1990 levels by 2010 and to 10% below those levels by
2020.
In April 2001,
Massachusetts established a rule requiring designated power plants to reduce
CO2
levels. Plants must meet the deadline by 2006, unless undertaking a fuel
shift, in which case they may delay until October 2008.
In May 2002,
New Hampshire adopted limits on CO2
emissions from power plants. By 2007, plants must reduce their emissions to
their 1990 level.
In summer 2003,
Maine enacted a law requiring state officials to develop a climate action
plan that would reduce CO2
emissions to 1990 levels by 2010, and eventually reduce them by 80%.
In 1998, led by
Christine Todd Whitman who was then governor, New Jersey set a voluntary
goal of reducing greenhouse gas emissions by 3.5% below 1990 levels by
2005. Legislation is also pending in Pennsylvania.
The Regional
Greenhouse Gas Initiative (RGGI) will assist states in New England and the
Mid-Atlantic in reaching such state-specific goals. RGG1 will develop a
cap-and-trade program to reduce CO2
emissions from power plants in the participating states.
Oregon and
Washington require new power plants to offset their CO2
emissions.
California, in
2003, adopted legislation directing the California Air Resources Board
(CARB) to achieve the maximum feasible and cost-effective reduction of
greenhouse gases from California’s motor vehicles. CARB has proposed a rule
that would reduce emissions approximately 30%. The standard will take
effect with 2009 model-year automobiles.
Maine,
Massachusetts, New York and Vermont have similar auto standards to
California.
Connecticut,
Oregon, New Jersey, Rhode Island and Washington state have announced that
they also intend to follow the auto standards. Together with California,
consumers in these states buy about 25% of all cars sold in the U.S.
At the
time of writing, eighteen states have adopted renewable portfolio standards
(RPS) that require electric power companies to use increasing percentages of
electricity produced from renewable sources such as wind and sun. Those
states include: Arizona, California, Colorado, Connecticut, Iowa, Maine,
Maryland, Massachusetts, Minnesota, Hawaii, Nevada, New Jersey, New Mexico,
New York, Pennsylvania, Rhode Island, Texas and Wisconsin.
Many
observers believe that the U.S. federal government will address climate
change in the coming Congressional sessions, enacting legislation to cap or
reduce CO2
emissions. A diversified generation portfolio, including energy efficiency,
distributed generation and renewable energy hedges against these risks. By
anticipating regulatory changes, rather than waiting for these regulations
to emerge, city governments pro-actively can help their citizens and local
businesses prepare for forthcoming national and state policy addressing CO2
emissions.
|
CASE
STUDY: Evanston, IL
|
|
Evanston Township High School
is located in the city of Evanston, Illinois.
The school is a 1.3 million sq. ft. complex that includes 13
gymnasiums, 2 swimming pools, three auditoriums, 4 cafeterias, and
330 classrooms. The school is air conditioned, and has 2,080 tons
of low-pressure steam-fired absorption cooling. A central boiler
plant provides steam for heating, hot water, and absorption cooling.
In 1990-1991, in a move to cut energy costs, the school began
looking at installing a combined heat and power (CHP) system.
By using engines with exhaust heat recovery to generate steam, the
system could provide cooling, heating and power. In 1992, the
school engaged LaSalle Associates of Glen Ellyn, Illinois, to design
and construct a 3-engine 2,400kWe CHP system for the high school.
Exhaust heat recovery was installed on the three engines to make
110-100 psig steam. The steam produced is used to heat water
throughout the year and for space heating in the winter and air
conditioning in the summer. The system began operation in October
of 1992 and is still in operation today.
Installed at a cost of $1.5 million, the system paid for itself in
approximately 4 years, and now delivers an annual savings of
$354,000 per year.
Evanston’s CHP system includes the following major components:
-
Three Caterpillar Model 3516
1,200 rpm V-16 natural gas fired engine/generator sets—rated at
800 kWe.
-
Three Maxim (Beaird Industries,
Inc.) exhaust heat recovery silencers (one per engine).
-
Three Amercool Mfg. Inc. single
fan, two speed radiators (one per engine). Three existing
Babcock & Wilcox built-in-place natural gas fired boilers
(designed by Perkins & Will and installed in 1966 in the school
boiler plant).
-
Four existing 520-ton York
single-stage low-pressure steam-fired absorption chillers are
located in separate rooftop mechanical rooms.
-
The system has resulted in a
30% reduction in utility expenses for the high school, saving
the school $354,000 per year.
CONTACT
Energy Resources Center
(312) 413-5448
|
|
CASE
STUDY: Ft. Collins, CO
|
Poudre School District of Ft. Collins, Colorado,
reaped sizable financial savings by adopting efficiency measures.
Poudre is also a model for how to take advantage of EPA’s energy
performance rating, from the earliest design phase through the
operations phase.
The
city saw the construction of an operations office building as an
opportunity to apply EPA’s energy-saving approach to a new
structure. In the early stages, a design charrette facilitated by
the architect challenged the participants to consider requirements
from more than 200 stakeholders, laying the foundation for a
cohesive team effort. Poudre used Target Finder, EPA’s rating
system for design projects, to set an energy use target and evaluate
design strategies modeled by energy simulation software.
As
the design progressed, they explored how key elements (building
orientation, envelope, materials, systems and equipment) could
affect energy performance. Over time, the design’s energy
performance rating remained in the 80s on EPA’s 1 to 100 rating
scale.
Poudre’s operations building features many innovative technologies
at the forefront of enhanced energy performance. For example, the
building incorporates daylighting and a dimming system to provide
adequate lighting with minimal electricity use, while a photovoltaic
demonstration unit installed on the roof lowers electricity
purchases. Heating and cooling is supplied solely by a geothermal
system.
Energy performance isn’t the only environmental feature of the
building. Sixty-eight percent of the “typical” construction debris
was recycled. The builders also used many construction components
made from recycled materials; these included recycled wheat board
finishing on the interior, recycled carpet backing, and roof
shingles composed of metal reclaimed from gasket production. The
building design also supports energy education by allowing high
visibility of its energy-saving features. The glass-enclosed
mechanical room provides a full view of energy systems in action,
and the building’s daily energy use is displayed (next day) in a
kiosk at the main entrance.
Poudre School District
earned an ENERGY STARÒ
label for the completed and occupied operations building based on 12
months of actual utility bills, joining 10 Poudre schools that had
already earned the ENERGY STARÒ
for superior energy performance. The district also received
state-level recognition when the Colorado Renewable Energy Society
honored Poudre’s Operations Building with its Colorado 2002
Renewable Energy in Buildings Award. EPA selected Poudre School district
as the 2003 ENERGY STARÒ
Partner of the Year for Leadership in Energy Management because of
its success in implementing ENERGY STARÒ
best practices.
The
8,753 square foot building was completed in May 2002. The estimated
total annual energy use is 199,378 kBtu and cost and $6,101.
CONTACT
Stu Reeve, Energy Manager
Poudre School District
(970) 490-3502
|
Generally
speaking, the two most important mitigation responses that communities can
take to address these risks happen to be the same two most important actions
communities can take to reduce their GHG emissions:
-
Adopt and encourage energy efficiency
and conservation in the community and in the local utility, and
-
Increase the use of renewable energy
resources, both in terms of passive design and power generation, in
individual homes and buildings and on the local grid.
Within
these general strategies are a number of programs that can mitigate the risk
described above. These include:
-
Implementing thorough electricity and
natural gas energy efficiency programs. By reducing demand on the
system, the probability of a transformer failure is decreased. Though
utilities have invested in demand-side management (DSM) resources in the
past, there is still a lot of room for efficiency improvements in
commercial, industrial and residential buildings. Utility deregulation
slowed the rate of efficiency investments in the past five years, but
higher fuel prices are starting to stimulate this activity again. City
governments can direct their own utility or petition their
investor-owned utility to offer more rebates and incentives for energy
efficiency programs directed towards all sectors, including low-income
residential.
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Using combined heat and power resources
where possible. In many industrial facilities, as well as some
commercial buildings (such as hospitals and hotels), using the waste
process heat to pre-heat water reduces energy costs and strain on the
delivery system.
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Offering interruptible load programs,
voluntary load curtailment, smart meters and other peak shaving programs
to reduce energy use at critical peak times.</H4>
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Deploying distributed generation
resources at the customer site or around the utility service territory.
These include small wind turbines, micro-turbines (combustion gas
turbines), reciprocating engines, photovoltaics and emerging
technologies such as fuel cells and stirling engines.
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Networking distributed generation assets
(“networked DG”) so that a utility can remotely switch on a generating
resource at a customer’s site and feed that power to the grid during
critical peak energy demand.
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Greater reliance on renewable energy
resources, such as wind, geothermal, biomass and solar. By diversifying
the resource mix in a single service territory, the risk of failure is
spread among more assets, thus mitigating the risk that any one asset
could cause grid failure. Renewable energy also tends to be dispersed
rather than centralized, giving it the benefits of distributed
generation.
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Adoption of local model or green
building codes for new construction and use of EPA ENERGY STARÒ-rated
appliances, fixtures, lighting, boilers and air conditioning for new and
existing residential and commercial buildings.
For an example, see the case study at the end of the document.
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Tapping into federal and state grant
moneys for weatherization programs, heating assistance and energy
efficiency programs for low-income households that can help cities help
their most vulnerable citizens.
Many of
these are best implemented in conjunction with or by the local electric
utility, whether it is a municipal utility or an investor-owned utility.
Increasing
energy efficiency reduces the strain on the local grid, minimizes summertime
peak loads, reduces the risk of blackout or power interruptions, reduces
energy costs to customers and end-users, mitigates exposure to volatile fuel
prices and also creates jobs, increases comfort, reduces health
impacts derived from combustion of fossil fuels, creates better working and
living environments and reduces a community’s contribution to global climate
change.
Increasing
reliance on renewable resources diversifies the fuel mix on which a
community is dependent. By having a more diversified fuel mix, the
community is less dependent on any one fuel source, thus mitigating the risk
of economic loss due to volatile fuel prices for any one fuel type.
Renewable energy tends to be a distributed resource, rather than coming in
large, centralized plants. Distributed energy reduces investment in
transmission and distribution and increases the efficiency of power
production. Conversely, large, centralized plants make communities more
vulnerable to weather or sabotage-related failures.
Renewable
energy has the additional benefit of steady fuel prices. While renewable
energy technologies are still improving, and operating costs are still
coming down over time, the cost of the wind and the sun remain
constant—“free.” Conversely, though the technology and operating costs of
fossil fuel plants are relatively constant (there are emerging technologies,
but fossil sources are generally considered mature technologies), the cost
of fuel is increasing over time.
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Chicago Climate
Exchange: To learn more
about the potential to engage in carbon trading, visit:
http://www.chicagoclimatex.com/
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The city of
Portland offers
information about its climate action and many other sustainable development
activities at
www.sustainableportland.org
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Visit the Smart
Growth Network at
http://www.smartgrowth.org/
for more information about alternatives to urban sprawl.
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-
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U.S. Global Change
Research Program: This government program offers hotlinks from it web sites to
a number of other sites and publications on the health impacts of global
warming:
http://www.usgcrp.gov/usgcrp/nacc/health/default.htm
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The Harvard Medical
School’s Center for Health and the Environment offers a variety of analyses,
educational papers and Powerpoint presentations on the health impacts of climate
change. See
http://chge.med.harvard.edu/index.html
(August 2006)
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At the United
Nations Conference on Climate Change in December 2005, more than 300 mayors from
around the world endorsed the World Mayors and Municipal Leaders
Declaration on Climate Change.
It addresses the responsibility of municipalities to mitigate and deal with the
effects of global warming, including its public health impacts. See
http://www.iclei.org/index.php?id=2447
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The Utah Energy Office
offers good information about urban heat island effects, and sample educational
and campaign materials for children. See
http://www.nef1.org/ea/koolkids/overview.html
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American Forests’ web
site offers information about urban tree planting programs, including
educational activities for youth. Visit the site’s information about CITYgreen
is a software tool that helps people understand the value of trees to the local
environment. Planners and natural resources professionals use the program to
test landscape ordinances, evaluate site plans, and model development scenarios
that capture the benefits of trees:
http://www.americanforests.org/
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For information about
capturing landfill methane, visit the EPA’s Landfill Methane Outreach Program at
http://www.epa.gov/lmop/
Climate Change Futures Project
The Climate Change Futures: Health,
Ecological and Economic Dimensions (CCF) project examines the physical and health risks of climate instability.
is a three-year effort by the Center for Health and the Global
Environment at Harvard Medical School,and is supported
by Swiss Re and the United Nations Development Programme. Key findings of the
study will be presented Tuesday, November 1,2005, at the American Museum of Natural History in
New York, New York.
This Project is Unique because:
Involves corporate stakeholders
directly in the assessment process.
Offers multi-dimensional
projections and recommendations for the coming five to ten years, unlike other
assessments with projections far off into the future
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Takes a broad view of health,
focusing on human diseases, while including diseases and infestations affecting
natural systems that can have profound economic effects via the loss of
resources and the services the environmental systems provide.
Brings together the wisdom of a
multi-sectoral group of researchers (public health professionals, veterinarians,
specialists in agriculture, marine biology, forestry, and climatology), and
representatives from the corporate, NGO and United Nations sectors to assess the
emerging pattern of risks.
Uses climate scenarios that
explore the possibility of much greater variance and the growing potential for
surprises and shifts that could have the greatest overall impact on human health
and well-being.
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