Solar Arizona: A solar energy tour of Arizona The vision of a solar Arizona – a place where...
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Transcript of Solar Arizona: A solar energy tour of Arizona The vision of a solar Arizona – a place where...
Solar Arizona:A solar energy tour of Arizona
The vision of a solar Arizona – a place where significant
amounts of clean energy are generated from the power of the sun – may be closer than
you think. In this CD, compiled by the Arizona
Department of Commerce Energy Office, you’ll learn of ongoing efforts to maximize the utilization of renewable
energy across the state.
Solar Arizona:October is Solar and Renewable Energy
MonthGovernor Jane D. Hull has declared October 2002 as
Solar and Renewable Energy Month. The Arizona
Department of Commerce Energy Office is working
with the solar community to stage events throughout the
state.
Solar Arizona:Oct 4-6 Green Building Expo – Phoenix
Oct 5 STAR Center Tour – Tempe Oct 5 Flagstaff Solar TourOct 5 Prescott Solar Tour
Oct 5 Women for Sustainable Technologies Conference. -- Tucson
Oct 9-12 EEBA Conference – PhoenixOct 10-12 Solar Electric Training --
TucsonOct 12 Sedona Solar Tour
Oct 19 Valley of the Sun Solar Tour Oct 26 Solar Seminar -- Douglas Oct 26 –27 Hot Topics and Cool Solutions Conference -- Tucson
Oct 26-27 Tucson Solar Home TourOct 30 Solar dedication Prescott Airport.
Solar ArizonaCalex Homes, in a joint venture with SRP, has
introduced both Solar Water Pre-Heating and Photovoltaic Energy (Electricity) in new home construction in three
east valley subdivisions. The system at the right is a 1.4
kW photovoltaic system on a house under construction.
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Solar ArizonaThe completed house at
Johnson Ranch Lakeview Gardens (Calex Homes) has both a photovoltaic and solar water heating system. Sandia Labs is monitoring the solar
water heating system to obtain vital information on
energy efficiencies and benefits of this state-of-the-
art solar water heating system.
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Solar ArizonaSRP has installed the latest in
Photovoltaic Panels, including PV shingles (center house) that match the color of
the roof. Preliminary estimates indicate these
systems will produce one (1) KW of electricity, which
should be sufficient to supply 20-60% of the required
power, depending on the season.
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Solar ArizonaThis home (bottom) in
Johnson Ranch Estates in the East Valley has four 300-watt
panels that cover approximately 104 square feet of the roof surface. The array on the adjacent building (top) consists of 12 85-watt panels that covers 108 square feet of
rooftop. Click here for larger image
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Solar ArizonaCalex Homes has teamed with SRP to offer solar
options on homes in The Estates at Johnson Ranch and Lakeview Gardens at Johnson Gardens. This model home in Johnson Ranch Estates has a 1.2 kW photovoltaic array on
the rooftop.
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Solar ArizonaAs these homes
demonstrate, the solar industry has made great
strides in the past decade to integrate solar systems into
the roofs of homes. This new generation of solar
systems have quietly found their way onto rooftops
throughout Arizona, offering an aesthetically
pleasing alternative to the systems of the 1980s.
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Solar Arizona"What we're literally
doing here is building a small power plant one house at a time," said John Wesley Miller,
developer/homebuilder of the 99 high-tech solar
homes in Tucson's historic Armory Park
neighborhood. Homes include solar water heating and solar
electricity.
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Solar ArizonaA 2.4 kw PV system being
installed on a roof in a Scottsdale subdivision. The system is one of a
growing number of grid-connected homes in urban
areas that are taking advantage of utility rebates and tax credits to finance systems with favorable
payback terms. Click here for larger image
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Solar ArizonaThe 2.4 kW PV system on
this Scottsdale house is eligible for a $4,800 utility
company rebate and a $1,000 state tax credit. The Arizona solar tax credit is 25% of the system cost up to a maximum of $1,000. The tax credit (ARS 43-
1083) has been in existence since 1995.. Click here for larger image
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Solar ArizonaThis 1 kW PV system in
Scottsdale consists of 20 50-watt solar panels. The house
is grid-connected, thus the homeowners can sell solar
generated electricity back to the utility company if the
house does not have a demand for the electricity at
the time it is produced.Click here for larger image
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Solar ArizonaThis Prescott house does not stand out from the
others in the neighborhood, however it is different. The house collects rainwater for all household purposes. It
utilizes solar electricity and solar water heating. It is
built with certified sustainably harvested and local 'leftover' wood and utilizes cast earth and
strawbale construction.
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Solar ArizonaDesigned by Prescott College student Brad Tito, the house uses a fraction of the energy
the previous house on the same site consumed. That
house was about one-quarter the size of the new one but consumed more than four
times the energy. This past January the utility bills were $22 for gas (used for cooling and water heating) and $4.23
for electricity.
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Solar ArizonaSolar isn’t exactly a new phenomenon, Arizonans
began building solar homes (passive and active) in the 1970s in response to the
Energy Crisis. This home, in Flagstaff, is just one of many built throughout the
state in the late 1970s. The passive solar features
provides more than 55% of the home’s heating needs.
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Solar ArizonaAnother example of the
alternative building methods employed during the 70s and 80s, this Tempe solar home is 68 percent earth covered or earth bermed. Built in 1981 this home’s features
include a rock bed for heating and cooling, an
attached greenhouse and a solar domestic water heating
system.
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Solar ArizonaThis 1850 square foot
residence in Prescott is made of Poured Earth and features solar for all electrical needs
and hot water. The home also uses passive solar power and its 16" thick thermal walls for both
heating and cooling. Backup heat is provided by a radiant floor and a high efficiency
wood stove.
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Solar ArizonaSolar energy is a great way to heat swimming pools.
Using the existing pool pump, water is diverted to the solar system. It then
passes through the collectors, where the water
is heated by the sun’s radiant energy. Next, the water is
returned to the pool to repeat the cycle until the pool has
been warmed.
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Solar ArizonaIn many cases, solar rooftop
systems are barely noticeable. Planned
communities and Homeowner Associations, once a barrier to growth in
the solar industry, have dropped their objections to rooftop systems. ARS 33-439 protects the rights of
homeowners to install and use solar systems on their
property.
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Solar ArizonaSolar energy has long been
used in areas of the state that are not serviced by the electric utility company.
This off-grid solar house on the Navajo Reservation was
constructed by the local coal company when the
original housing structure had to be removed due to
mining activity. Click here for larger image
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Solar ArizonaAt the Backus Ranch in central Arizona, this PV
system, installed in 1980, provides the only source of power for a family ranch
house. In areas throughout Arizona that are beyond the utility lines, PV systems are often much cheaper for the rancher than paying for a utility line extension. Click here for larger image
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Solar Arizona
This 900-watt solar electric system near Sedona runs a 5-
horsepower water pump. The pump draws water from
860 feet deep. PV water pumping systems are
common throughout Arizona in areas where utility power
is unavailable. Click here for larger image
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Solar ArizonaCivano, a planned energy-
efficient community in Tucson, includes a
neighborhood center equipped with a 6-kW PV system.
Civano home’s are 30-60% more energy efficient than the
typical home. The initial planning stages of the Civano
Project and the community center were funded by the Arizona Energy Office.
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Solar ArizonaTo meet the reduced energy
goals set for the community of Civano, the builders offer
various energy efficient and renewable energy options
Among the options are photovoltaic grid-tied systems,
solar hot water heaters, and thermal mass design and masonry construction.
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Solar ArizonaThis photo offers a bird’s-
eye view of the Civano development. Various
renewable energy options are available to homebuyers
including passive solar design, solar water heating and photovoltaic systems
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Solar ArizonaA cool tower and shaded entrance patio highlight front of building at the
Global Solar Manufacturing facility in the community of Civano. Global Solar is a manufacturer of thin-film PV products and a major
employer in the community.
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Solar ArizonaThe TEP Sunshare program pays a rebate to customers who install solar electric
systems on their homes. To date, 24 Tucson area
homeowners have taken advantage of the utility
company’s program and have received rebates ranging from $2,000 to $10,000.
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Solar ArizonaCity of Tucson Southeast
Service Center: The City’s main objectives in
undertaking this project were to design and build a commercial office building
using commercially available energy efficient products and to educate staff, consultants and
contractors in application methodology.
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Solar ArizonaGlendale West Area Water
Reclamation Facility:Solar panels generate hot
water and electricity for the administration building. The panels also facilitate passive solar heat gain in the winter.
The PV system generates over 12 kW per hour of electricity. The panels
provide shade for walkways and south-facing glass.
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Solar ArizonaThe Safford Middle School
PV installation was completed in the fall of 2000. The 4 kW system was a joint
venture of many solar organizations in the state and was funded through a MSR
grant from US DOE. Safford is one of 14 schools in the state that have gone solar.
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Solar ArizonaSolar Pond Aerator
Somerton Municipal Wastewater Treatment
Plant: Somerton estimates a 100% savings on energy costs to operate the 40hp Blower system due to the blowers being completely shut off. The estimated
cost of electricity saved is $1,080 per month ($12,960
per yr).
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Solar ArizonaA 25 kW PV systems sits overlooking a landfill in Central Arizona. The
system was developed by APS has part of a federal grant through the Arizona Energy Office to displace
diesel generators. The system at the Graywolf Lanfill made immediate
economic sense for operators.
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Solar ArizonaThis pole mounted
photovoltaic system powers a light at a trail entrance in the Tonto National Forest.
Utility grid power was several miles from the site
and line extension had to be underground, meaning that
solar electricity was the least-cost alternative on a
first-cost basis. Click here for larger image
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Solar ArizonaTop -- Wing walls and
overhangs protect insulated window walls yet provide day lighting deep into the Sierra
Vista Library. Middle -- From the west, massive wing walls protect windows from direct sun and create shade spaces
outdoors in the park. Bottom -- At the north energy clear
insulated roof panels provide day lighting for the northern
portions of the library.
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Solar ArizonaThe design of the Sierra
Vista Library -- with south and southwest-facing glass dictated the use of low-e thermal pane glass and
window overhangs with fins.With its use of natural daylighting and other
features, the annual energy use for the new building is estimated to be one-half of
the national design standard.
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Solar ArizonaInstalled in 1998 this system preheats 50,000 gallons of water daily for use by more than 1500 federal inmates
and staff at a prison north of Phoenix. The hot water is
used in the laundry, kitchen, and shower areas. Data
indicate that the system saves about $6,000 in electricity
costs per month. Click here for larger image
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Solar ArizonaParabolic troughs are used to
heat water for the Federal Correctional Institution north of Phoenix. During normal use, a tracking device keeps
the troughs at the correct angle to capture the most solar energy. The system was
installed as part of an Energy Service Performance Contract – where a third party covers the cost of the system and is repaid from the cost savings.
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Solar ArizonaThis large solar thermal system was installed at a
new barracks facility at Fort Huachuca Army Base in
Sierra Vista, Arizona. This building-integrated system was ground-mounted for
ease in maintenance.
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Solar ArizonaGould Electronics of Chandler, has had its
parabolic-trough collector system since 1982. An
example of the use of oil for heat transfer, the system
provides process water for copper foil production.
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Solar ArizonaUS Department of Energy
helped design the solar water heating system at the
Maricopa County Outdoor Education Center. The
system serves as an educational tool while
providing real energy, cost, and emissions savings.
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Solar ArizonaThis 2 kW PV system
provides an uninterruptible power system for the US Department of Interior’s
Bureau of Indian Affairs at the Havasupai School in
Supai Village. The village is located at the bottom of the
Grand Canyon.
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Solar ArizonaThis parking ramada is
located at the Yuma Proving Ground in southwestern
Arizona. As can be seen in the photo, the structure is an excellent source of shade in the hot desert climate. What can’t be seen is that the PV panels generate clean power to charge the electric carts
used on site. Click here for larger image
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Solar ArizonaOn the Utah/Arizona border,
Dangling Rope Marina at Lake Powell
was one of the first PV installations in the National
Park Service to replace electricity produced by
diesel generators.
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Solar ArizonaTwo communications towers at a remote Arizona location
are powered by a 25kW hybrid PV/diesel system. The
Carol Springs Mountain system went on-line in Aug
1995 replacing a diesel generator that ran 24/7. The
PV system powers towers for AT&T, US West, and a TV
station in Tempe. Click here for larger image
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Solar Arizona TEP operates one of the world’s largest PV power
stations -- a 1.4 MW ground-mounted system in northeastern Arizona. The
plant will be expanded to 2.4 MW of generating capacity
by the end of 2002. The plant began generating
electricity one month after construction started in June 2001. The entire system was
on-line in five months.
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Solar ArizonaTEP also has a 200 kW solar
power plant at its DeMoss Petrie Station in Tucson.
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Solar ArizonaThis SRP Solar Power Plant
consists 588 modules covering approximately 24,418 square feet. The array DC power is
converted to 208 Volts AC and interconnected to the SRP
distributionsystem by a 12.47 kV isolation
transformer. The ac power rating is 200 kW.
The PV system is located at SRP's Agua Fria Generating
Station.
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Solar ArizonaThe largest system under test
at APS’s Solar Test and Research (STAR) Center is a
high-performance “concentrating” PV power generator. Although not
suitable for small projects, concentrator systems have
very good potential for large-scale power generation.
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Solar Arizona The concentrating collector
at the STAR Center produces 20 kW of
electricity, or about enough to power five Phoenix-area homes. Systems like these
may someday provide power for entire communities.
Presently, a system similar to this is under construction near the Prescott Airport in
the northern part of the state.
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Solar Arizona APS is evaluating the
performance of the latest in dish/Stirling solar power
systems at its STAR Center near Phoenix. Capable of
producing 25 kW of electricity, the system uses mirrors to focus sunlight onto a thermal receiver,
which runs a Stirling heat engine, which drives an
electric generator.
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Solar ArizonaOnce perfected and
manufactured on a large scale, the dish/Stirling
engine has the potential to become one of the cheapest solar energy technologies
available.
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Solar ArizonaAPS and Embry-Riddle Aeronautical University
jointly constructed a 190 kW solar power plant
north of Prescott. Opened in March 2001, the solar power facility
produces enough energy to power 25 to 40 homes.
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Solar ArizonaThe 125-kW APS solar power plant located in
Gilbert consists of 10 solar arrays, which will track the sun from east to west on a
single axis. The plant, which was dedicated in
April 2001, feeds directly into the APS electric grid.
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Solar ArizonaIn 2001, Glendale
partnered with APS to build the world’s first commercial
application of high-concentration PV arrays at
the Glendale Municipal Airport. This technology
tracks the sun’s movement and employs special
lenses to magnify the sun’s rays 250 times onto each
solar cell.
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Solar ArizonaBoyce-Thompson Arboretum rests at the base of the Picket
Post Mountains of central Arizona, east of Superior. Established in 1920, the
arboretum/botanical garden, cultivates desert plants from
all over the world. The Arboretum is part of APS’
Project Sol – and is outfitted with a 2 kW solar array on its
visitor center.
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Solar ArizonaChallenger Learning Center is
an innovative educational center exploring the wonders
of outer space. Located northwest of Phoenix, the
Center offers space exploration programs for
students and the public. The Center’s roof also supports a
2 kW solar array that provides additional educational
experiences for students.
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Solar ArizonaThe Desert Outdoor Center at Lake Pleasant is also part
of the APS Project Sol. Located north of Phoenix, the Center interprets the region's flora, fauna and
geology through a variety of programs open to the
public. A 2 kW solar array provides power to the
Center. Click here for larger image
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Solar ArizonaLowell Observatory is the perfect location for a solar array. Well known for both its astronomical research, Lowell Observatory was established by Percival
Lowell in 1894. From the observatory on Mars Hill, scientists discovered the
planet Pluto and established first evidence of an
expanding universe.
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Solar ArizonaNamed for Arizona
writer/historian Sharlot Hall and housed in the Arizona
territorial Governor's Mansion in Prescott, a log
home built in 1864, the museum displays artifacts
from Arizona's pioneer era. The museum’s visitor
center has a roof mounted 2 kW solar array. Click here for larger image
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Solar ArizonaAPS and the City of
Scottsdale have partnered to build 186 kW of solar generation at the City’s
facilities. Projects include solar covered parking, on a
library and water tanks. The City also purchases
solar energy under the APS Solar Partner Program.
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Solar ArizonaAPS and the City of
Scottsdale partnered on a solar power plant at the
Scottsdale Water Campus. The facility feeds 300 kW of solar energy – enough to
provide for the electrical needs of up to 100
homes – to the electric grid. Click here for larger image
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Solar ArizonaLocated on the grounds of the APS Solar Test and Research Center
(STAR Center) in Tempe, this solar plant generates 182 kW of solar energy
for use by all APS customers.
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The following organizations contributed photos for this CD:
Al Nichols EngineeringArizona Energy OfficeArizona Solar CenterArizona Public ServiceAz. Solar Energy Ind. AssociationAmerican SolarCalex HomesCity of Glendale City of TucsonJohn Miller HomesLiving Systems Architecture Dr. Martin J. Pasqualetti Prescott CollegeSalt River ProjectUS DOE -- NREL