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8/11/2019 PPT Solar Energy Greenpeace
1/26
Solar Energy
as aSource of Electric Energy
The AdDU Experience
Engr. Michelle M. Soledad
Electrical Engineering Department
Ateneo de Davao University
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1.0 Solar Energy Basics
2.0 Solar Energy Utilization
3.0 The AdDU Experience
http://en.wikipedia.org/wiki/File:ADDU_seal.jpghttp://en.wikipedia.org/wiki/File:ADDU_seal.jpghttp://en.wikipedia.org/wiki/File:ADDU_seal.jpghttp://en.wikipedia.org/wiki/File:ADDU_seal.jpghttp://www.addu.edu.ph/index.php8/11/2019 PPT Solar Energy Greenpeace
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1.0 Solar Energy Basics
Source: U.S. Department of Energy http://www.energy.gov/articles/top-6-things-you-didnt-know-about-solar-energy
The amount of Solar Energy that the sun
sends our way is around 173,000 terawatts(trillions of watts)more than 10,000 times
the worlds total energy use
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1.1 Solar Energy as a Renewable Energy Resource
What is Solar Energy?
Energy that comes from the sun
May be used as a source of heat and
light
May be used to generate electricity
Image Credit : Rutgers University, Bhavik Shah
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1.2 Solar Energy in History1877 : Air blowing over sun-heated iron was
used to heat homes
1910 : Awarding of the first patent for a solar
collector
1930s: First widespread use of solar power for
heating
1954: Bell Laboratories builds the silicon solarcell, the precursor of all solar-powered
devices
1960s: Space industry uses solar energy to
provide power aboard space crafts
Image Credits: Arizona Public Service Company. Source on Bell Laboratories and Solar Energy Utilization by the Space Industry: US Department of Energy
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1.3 Generating Electricity Using Solar Energy
Photovoltaic
direct conversion of sunlight toelectricity
Photovoltaic Solar Power Plants
contain:Solar arrays
Inv erters
Transform ers
Thermal
use of heat to generate electricityThermal Solar Power Plants contain:
Collector f ields
Turbine
Generators
Cool ing Towers
Transform ersSource/Image Credit: Arizona Public Service Company
Glendale Airport, Glendale, Arizona
10 MW Solar II Experimental Power Plant, CA
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1.3.1 Photovoltaic Solar Systems1. Sun illuminates the solar cells in the
photo vo ltaic (PV) array
2. Solar energy is converted to electr ic
energy in the PV array
3. Electric energy generated goes intoan inverter, a device which converts
direct current (DC) to alternating
current (AC)
4. Alternating current goes into power
lines for distribution to end users
Source/Image Credit: Arizona Public Service Company;www.solaredge.com; www.exponent.com
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1.3.2 Thermal Solar Systems
Source/Image Credit: Arizona Public Service Company
1. Parabo l ic mir rors focus the sun at 30 to
60 t imes its normal intensity on a
receiver pip e, located along the focal
l ine of the trough
2. Synthetic o i l captures heat ; hot o il is
pum ped through heat exchanger to
produ ce steam
3. Convent ional s team turb ine/generator
pro du ces electr ic i ty
4. Steam is condensed th rough a coo l ing
tower, and is pum ped back throug h the
heat exchanger con nected to solar
energy col lect ion f ield
http://www.addu.edu.ph/index.phphttp://www.addu.edu.ph/index.php8/11/2019 PPT Solar Energy Greenpeace
9/26Source: University of California San Diego/Santa Cruz
1.4 Advantages
Clean
Sustainableinexhaustible
Noise-free
Low maintenance costs
Competitive use among otherenergy sources at selected uses
(ex. off-grid)
http://www.addu.edu.ph/index.phphttp://www.addu.edu.ph/index.php8/11/2019 PPT Solar Energy Greenpeace
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Image Credit: Arizona Public Service Company
Info Source: National Geographic Society http://environment.nationalgeographic.com/environment/global-warming/solar-power-profile/
1.5 Drawbacks
?Does not work at night without a storage
device
?Dependent on weather during the day(cloudy weather will make it unreliable)
?Expensive
?Requires a huge footprint (for large-scaleelectricity generation)
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1.5.1 Solar PV SystemOff-Grid (Php/kW)
Capital Cost @ 8-hr a Day (Php/kWe) 435,313.85
Operation & Maintenance (Php/kWe) 12,043.09
Solar Electric Footprint (m2/kWe) 25.00
Area required for a 100MW Plant (Has.) 250.00
http://www.addu.edu.ph/index.phphttp://www.addu.edu.ph/index.php8/11/2019 PPT Solar Energy Greenpeace
13/26Source/Image Credit: http://www.solarplaza.com/top10-pv-markets/
2.0 Solar Energy Utilization
http://www.addu.edu.ph/index.phphttp://www.addu.edu.ph/index.php8/11/2019 PPT Solar Energy Greenpeace
14/26Source/Image Credit: http://www.solarplaza.com/top10-pv-markets/
2.0 Solar Energy Utilization
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15/26Image Credit: https://www.cia.gov/library/publications/the-world-factbook/geos/rp.html. Source: Green is Gold, Greenpeace (2013)
2.1 Solar Energy Utilization Potential - Philippines
Located near the equator
Long, hot summers
Average solar radiation of 161.7
watts per sq. m.
Potential to generate 4.5 to 5.5 kWh
per sq. m., per day
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3.0 RE and Solar EnergyThe AdDU Experience
engages vigorously in environmental protection,
the preservation of bio-diversity, andthe promotion of renewable energy.
- Excerpt from the AdDU Mission Statement
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3.0 RE and Solar EnergyThe AdDU Experience Participation in the Sustainable Campus initiative of Greenpeace,
along with the University of Southeastern Philippines
Institutional support for conduct of baseline energy audit (2012)
and profiling of factors that affect energy consumption (2013) in
the Jacinto campus
Institutional support for studies on renewable energy
systems (solar PV, solar thermal, micro-hydro)
Investment in solar PV system (also became a medium
for community engagement, through disaster response
activities in the aftermath of Typhoon Pablo)
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Pilot Solar PV SystemRooftop, Finster Hall, AdDU
Sun Tracker Electrical Entrance to Finster Hall
12 Sets of Solar-PV Panels (@ 4 panels per set) 20-kW Grid-Tie Inverter
3.0 RE and Solar EnergyThe AdDU Experience
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3.0 RE and Solar EnergyThe AdDU ExperienceBenefits Value RemarksFinancial 64.512 kWhr per day @ 13.44 kW installed capacity, about 80%
derating factor, 6.0 hours of Insolation
exposure (@ 1kw/m2) per day
(54.512 kWhr/day)(30days/mo)=1.94 MWhr/month
Energy harvested per month
(1.94 MWhr/Month)(P
9.68/kWhr) = P19.40T/Month
Recovery in 6.5-7.5 years for a P1.68M
investment, @ P10/kWhr (Approved Feed-
In-Tariff is P9.68/kWhr)
P 232.80T/yr or P 5.82M in 25
years
P3.00-3.50 per kWh for 25 years
(and can be extended)
@ P1.68M cash outlay including repair &
maintenance (note: energy cost may rise
from P8-12/kWh to P25-30/kWh in 25
years)
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3.0 RE and Solar EnergyThe AdDU Experience
Ongoing / In the pipeline
AdDU Community Tower
Roxas Ave/Zamora St
Proposed InstalledCapacity: 166 kWp
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3.0 RE and Solar EnergyThe AdDU Experience
Ongoing / In the pipeline
AdDU Community Tower
Roxas Ave/Zamora St
Proposed InstalledCapacity: 166 kWp
Solar-PV Panel Dimension (385 W, 35 kgs)
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3.0 RE and Solar EnergyThe AdDU Experience
Ongoing / In the pipeline
AdDU Martinez Sports Complex, McArthur Highway, Matina
Proposed Installed Capacity: 108 kWp
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3.0 RE and Solar EnergyThe AdDU Experience
Ongoing / In the pipeline
AdDU Martinez Sports
Complex
McArthur Highway, Matina
Proposed Installed
Capacity: 108 kWp
Solar-PV Panel Dimension (300 W, 27.1 kgs)
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3.0 RE and Solar EnergyThe AdDU Experience
Ongoing / In the pipeline
Exploratory Research on
Electricity Generation
using Solar Thermal
Technology
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www.addu.edu.ph
(082) 221-2411 local 8313
http://www.addu.edu.ph/index.php