100 Best Solar Energy Case Studies of 2019

See how people and organizations save annually with solar energy

The adoption of solar energy in the world is growing at a rapid pace in the world.

More and more consumers, businesses and governmental organizations are considering solar energy.

But it can be sometimes difficult to convince your family, friends, boss or colleagues to adopt solar energy?

To make it easier to convince people to adopt solar power we selected the best and most complete 100 solar energy case studies.

The case studies included in this list contain key information about the return on investment and annual savings of solar energy systems built all over the world and different sizes.

The list is divided in three categories:

 

Residential Solar Energy

1. Home Lavallee Family

Country: Cumberland, Rhode Island, United States
Installer: Renewable Energy Service of New England Inc.
Solar PV: Suniva
Inverter: Enphase
Size: 9.5 kW
Return on Investment: 34.9%
Annual Savings: $3845

RES installed 33 solar modules for the Lavallee Family. The projected return of investment is 6 years.

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2. Home Middle Franconia

Country: Bavaria, Germany
Inverters: SMA
Size: 5 kWp
Cost reduction: €875 per year

One family of five installed a solar energy system with batteries. The whole system included a SMA pv inverter, a SMA battery inverter and a SMA sunny home manager for system monitoring and energy management.

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3. Home Götz Family

Country: Wetzlar-Hermannstein, Germany
Installer: Gecko Logic
Solar PV: Yingli
Inverters: SMA
Size: 8.5 kWp
Cost Reduction: €3936 per year

A colleague convinced the family to invest in solar energy. The solar modules exceed the predicted energy yield. This system was installed by Gecko Logic.

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4. Home Tan Family

Country: Jalan Kelawar, Tanglin, Singapore
Installer: ReZeca Renewables
Solar PV: Yingli Solar
Size: 18.6 kWp
Estimated Annual Savings: SGD$6000

The Tan Family wanted to reduce their footprint and their energy bills. In total 62 solar panels were installed.

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5. Home Pappalardo Family

Country: Viagrande, Italy
Installer: Etnergia
Solar PV: Yingli
Inverters: SMA
Size: 8.58 kW
Cost Reduction: €5533 per year

After seeing solar pv installation in other countries the family decided to switch to solar energy. The company Etnergia installed 39 solar panels on roof with south-east orientation. The system is performing better than expected.

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Commercial Solar Energy

6. Absolute Coatings

Country: New Rochelle, New York, United States
Installer: Sunrise Solar Solutions
Inverter: Enphase
Size: 82 kW
Savings over system life: $442 866

Sunrise Solar Solutions designed and installed 313 solar modules for Absolute Coatings on a new roof. The mounting system is ballast only. This project is part of 200 kW solar energy system that will completed in a next phase.

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7. Rehme Steel

Country: Spicewood, United States
Installer: Freedom Solar Power
Solar PV: Sunpower
Size: 81.6 kW
Estimated savings over 25 years: $338 883

Rehme Steel wanted to reduce their operating cost and their carbon emissions.

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8. Birkhof Horse Stables and Riding School

Country: Waldsoms, Germany
Installer: Gecko Logic
Solar PV: Yingli
Inverters: SMA
Size: 34.68 kWp
Cost Reduction: €12 954

Birkhof choose for solar energy, because of environmental and cost reduction reasons. Gecko Logic installed the system in 2008.

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9. Ryan and Ryan Insurance

Country: Kingston, New York, United States
Installer: Sunrise Solar Solutions
Solar PV: Conergy
Inverter: Enphase
Size: 16.3 kW
Savings over lifetime system: $69 654
Years to breakeven: 5.9

The roof of Ryan and Ryan Insurance was big enough to place enough solar panels to cover their whole energy consumption. The solar panels are mounted with a fully ballasted racking system.

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10. Powerplant Poggiorsini

Country: Poggiorsini (Bari), Italy
Installer: SAEM Company
Solar PV: Yingli
Inverters: Siel
Size: 3 MWp
Return: €1 412 000 per year

The solar power plant was built by SAEM Company and is made up of 13 500 units. The plant is oriented to the south. The plant produces enough energy to power the homes of 1500 families.

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11. Huerto Solar Villar de Cañas II

Country: Villar de Cañas, Spain
Installer: CYMI
Solar PV: Yingli
Inverters: Siemens
Size: 9.8 MWp
Return: €6 336 000 per year

Prosolcam bought a 22 hectare site to invest in solar energy. The company CYMI designed and installed the system that consist of 56 180 pv modules. The plant has an south facing orientation.

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12. Amcorp Gemas Solar Plant

Country: Gemas, Negeri Sembilan, Malaysia
Installer: Amcorp Power Sdn. Bhd.
Solar PV: Yingli
Size: 10 269 MWp
Return: MYR 11.88 million (about $2.6 million)

Amcorp Power is a solar farm developer in Malaysia. The solar plant has a power purchase agree with Tenaga Nasional Berhad for 21 years. The plant that consists of 41 076 pv modules, produces enough energy for 3315 residential homes.

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13. Jackson Enterprise LLC

Country: California, United States
Installer: CM Solar Electric
Solar PV: Sunpower, LG
Inverter: SMA
Size: 26kW
Average Annual Savings: $11 556
Return on Investment: 23.6%

The solar energy system provides at least 100% or more of the energy consumption of the building. And the total net investment of the system was $49 000.

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14. Diab Engineering

Country: Geraldton, Australia
Installer: Infinite Energy
Solar PV: Conergy
Inverter: SMA
Size: 100 kW
Year 1 return on investment: 34%
10 Year Net Present Value: $139 000
Annual Savings: $41 000

Diab Engineering choose Infinite Energy to install a solar energy system on there roof of their workshop. Diab Engineering used government funded solar programmes to finance their system.

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15. GAL Manufacturing

Country: New York,United States
Installer: Solar City
Size: 237 kW
Annual Savings: $50 000

GAL Manufacturing is a family owned company that builds elevator parts. The system will generate almost half of the buildings energy consumption. The project is partly funded by government funds.

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16. Hewlett Packard

Country: Palo Alto, California, United States
Size: 1 MW
Estimated Lifetime Savings: $1 million

HP installed 1 MW of solar modules on its roof. The system will provide 20% of the buildings usage. HP doesn’t own the system, but will purchase the energy produced from Solar City.

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17. Velmade Prestige Sheet Metal

Country: Osborne Park, Australia
Installer: Infinite Energy
Solar PV: REC Solar
Inverter: SMA
Size: 31 kW
Year 1 return on investment: 18%
10 year Net Present Value: $7 400
Annual Savings: $8 500

In 2014 Velmade installed 120 solar modules on its roof. As a small-to-medium business it wanted to reduce its operating costs. The project is expected to payback in 5.3 years. Velmade used outside funding for its solar system.

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18. Bella Ridge Winery

Country: Herne Hill, Australia
Installer: Infinite Energy
Solar PV: REC Solar
Inverter: SMA
Size: 40 kW
Year 1 return on investment: 21%
Annual Savings: $18 300

Bella Ridge Winery is a energy intensive company and was suffering of rising electricity prices in Australia. Infinite Energy installed 156 REC Solar modules on a ground mounted rack. The projected payback period is 4.4 years.

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19. Cheeky Brothers

Country: Osborne Park, Australia
Installer: Infinite Energy
Solar PV: REC Solar
Inverter: Fronius
Size: 40 kW
Year 1 return on investment: 28%
Annual Savings: $13 500

Cheeky Brothers is a Food company that installed 152 REC Solar panels on its roof. The system produces 28% of electricity consumption.

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20. Seven Acres Business Park

Country: Suffolk, United Kingdom
Installer: Enviko
Solar PV: CSUN
Inverter: SMA
Size: 40 kW
Yearly Income and Savings: £8 079

This business park decided to install 120 solar panels on its roof just in time before feed in tariffs were reduced in 2012. The project was completed just in time by Enviko.

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21. Broad Oak Cider Farm

Country: Clutton Hill Industrial Park, Bristol, United Kingdom
Installer: Enviko
Solar PV: Conergy
Inverter: Solaredge
Size: 100 kW
Yearly Income and Savings: £15 894

Enviko helped Broad Oak Cider Farm install 400 solar panels that covered the whole roof of the building. Power optimizers were used to reduce the effects of shading on the panels.

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22. Glebar Inc.

Country: Franklin Lakes, New Jersey, United States
Installer: Solar Energy World
Solar PV: Schuco
Size: 55.5 kW
Yearly Savings: $8000

Glebar Inc was looking for a way to reduce its energy bills and reduce its carbon footprint. Solar Energy World helped achieving their goals. The system is partly funded with a tax break and Solar Renewable Energy Credits.

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23. Metuchen Sportscomplex

Country: Metuchen, New Jersey, United States
Installer: Solar Energy World
Solar PV: LG
Size: 312 kW
Yearly Savings: $33 397

The developer Recycland LLC decid to add Solar Energy to its building to reduce energy costs and to reduce its carbon footprint.

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24. Alfandre Architecture

Country: New Paltz, New York, United States
Installer: Sunrise Solar Solutions
Solar PV: Conergy and Hyunday
Inverter: Enphase
Size: 33.4 kW
Savings over lifetime system: $190 000

Alfandre Architecture is applying for the LEED GOLD Certification. Adding solar energy to the project is a logical step. Sunrise Solar Solutions did the installation of the new building.

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25. Ebay

Country: San Jose, California, United States
Installer: Solar City
Size: 650 kW
Annual Cost Savings: $100 000

Ebay wanted to make its campus in San Jose more sustainable. Solar City designed and installed the 3248 solar panel system on five different buildings located on the campus.

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26. Heritage Paper

Country: Livermore, California, United States
Installer: Solar City
Size: 528 kW
Annual Cost Savings: $26,950

Heritage Paper is the packaging supplier of big companies like Nordstrom and Cliff Bar. Their huge facility uses huge amounts of energy and installing solar panels was a no-brainer.

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27. Batth Farms

Country: San Joaquin Valley, California, United States
Installer: Solar City
Size: 1.5 MW
Estimated lifetime savings: $9 000 000

The Batth farm uses a lot of energy for the irrigation of the land and running waterpumps. To reduce their operating costs Solar City installed a solar energy system on their farmland.

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28. Advance Auto Parts

Country: Enfield, Connecticut, United States
Installer: Solar City
Size: 1.17 MW
Annual Cost Savings: $100 000

Advance Auto Parts is a distribution company of after-sales auto parts. Solar City installed the solar system with little to no disruption to daily operations.

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29. Roofmart

Country: Kewdale, Australia
Installer: Infinite Energy
Solar PV: REC Solar
Inverter: SMA
Size: 100 kW
Year 1 Return on Investment: 25%
10 year Net Present Value: $103 200
Annual Savings: $37 600

Roofmart design, manufactures and distributes steel constructions that are used for garages, patios and sheds. The system was installed in december 2015 and the cost will be returned in under 4 years.

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30. Imdex

Country: Osborne, Australia
Installer: Infinite Energy
Solar PV: Winaico
Inverter: SMA
Size: 100 kW
Year 1 Return on Investment: 32%
10 Net Present Value: $240 300
Annual Savings: $45 300

Imdex is listed on the ASX and produces and manufactures fluids and instruments for the mining, oil and gas industries. The projected payback period the solar energy system will be 3.1 years.

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31. Audi Seattle

Country: Seattle, United States
Installer: A&R Solar
Solar PV: Sunpower
Size: 235 kW
Estimated 25 year savings: $2 million

Audi Seattle is a dealer of high performance electric vehicles. The company wanted to power their vehicles with a sustainable energy source, solar energy.

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32. Boulder Nissan

Country: Boulder, United States
Installer: Independent Power Systems
Solar PV: Sunpower
Size: 50.25 kW
Estimated 25 year savings: $384 000

Boulder Nissan is a high volume seller of the electric Nissan Leaf in the Boulder area. The adoption of solar energy is a logical step.

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34. Microsoft

Country: Mountain View, United States
Solar PV: Sunpower
Size: 551861 kW
Estimated annual savings: $120 000

Microsoft is one of the biggest software companies in the world with a commitment to the environment.

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35. Rivermaid Trading co.

Country: California, United States
Installer: Sunworks
Solar PV: Sunpower
Size: 1.7 mW
Estimated annual savings: $300 000

Rivermaid Trading is a grower, processor and distributer of fruit. The company has facitlities that are huge and with solar energy they wanted to reduce their energy bills.

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36. Lake County Sanitation District

Country: Lakepoint, United States
Solar PV: Sunpower
Size: 2.17 mW
Estimated savings over 20 years: $5 million

The Lake County Sanitation District wanted to reduce their environmental impact.

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37. Dobinsons Spring & Suspension

Country: Rockhampton, Australia
Solar PV: Hanwha Q Cells
Size: 510 kWp
Estimated annual savings: AUD$160 000

In the past decade Dobinsons saw their energy costs grow with 100%. With an solar energy system Dobinsons is now protected from increasing energy prices.

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38. Austchilli

Country: Bundaberg, Australia
Solar PV: Phono Solar
Size: 300 kWp
Estimated payback period of 4-5 years

Rising energy costs made the business model of Austchilli less feasible and that is why they choose solar energy.

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39. Enmach Industries

Country: Bundaberg, Australia
Solar PV: Q-Cell
Size: 100 kWp
Estimated annual savings: AUD$40 000
Estimated payback period of 3.5 years

Like a lot of Australian manufacturing companies, the energy bill of Enmach Industries was rising. Solar energy was the only logical solution.

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40. Advantage Welding

Country: Rockhampton, Australia
Solar PV: Phono Solar
Size: 33 kWp
Estimated payback period of 4.2 years

To reduce their electricity bill Advantage Welding worked together with Gem Energy to install solar energy panels on their roof.

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41. Bridge Toyota

Country: Darwin, Australia
Solar PV: Q Cells
Size: 100 kWp
Estimated annual savings AUD$35 000
Estimated payback period of 3.5 years

Bridge Toyota has a huge energy consumption for its showroom, office, workshop and warehouse. To prevent huge energy bills cutting in their operating margins they switched to a solar energy system on the roof of their facility.

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42. Great Western Hotel

Country: Rockhampton, Australia
Solar PV: Q Cells
Size: 57 kWp
Estimated payback period of 3.2 years

The Great Western Hotel used a renovation to make their operation more green with a solar energy system that is connected to the grid.

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43. Luther Auto Group

Country: Midwest, United States
Solar PV: Sunpower
Size: 454 kWp
Estimated saving over 25 years: $2.1 million

The Luther Auto Group used their large flat roofs of their dealerships to generate cheap solar energy.

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44. Turtle Bay Resort

Country: Kahuku, United States
Solar PV: REC Solar
Size: 702 kWp
Estimated saving over 20 years: $2.5 million

The Turtle Bay Resort won the Leader in Sustainability Award in Hawaii. The Turtle Bay Resort worked together with REC Solar to install a roof mounted system and a ground mounted system.

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45. Zurn Industries

Country: Paso Robles, United States
Solar PV: REC Solar
Size: 552.7 kWp
Estimated annual savings: $110 000

Zurn Industries is a manufacturer of irrigation equipment and want to reduce their operating expenses with the installation of a roof mounted solar energy system.

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46. San Antonio Winery

Country: Paso Robles, United States
Solar PV: REC Solar
Size: 517 kW

Estimated saving over 30 years: $4 million
The San Antonio WInery will produce 80% of the power they need for their wine production facility and their hospitality center.

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47. Ballester Hermanos

Country: San Juan, United States
Solar PV: REC Solar
Size: 874 kW
Estimated annual savings: $100 000

Ballester Hermanos is located on Puerto Rico that has high energy prices. Solar energy through a power purchase agreement made a lot of economic sense. 

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48. Sonoma Mountain Village

Country: Rohnert Park, United States
Solar PV: REC Solar
Size: 1.16 mW
Estimated annual savings: $680 000

Sonoma Mountain Village improved their Leed Premium status by expanding their solar energy capacity.

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49. Haas Automation Inc.

Country: Oxnard, United States
Solar PV: REC Solar
Size: 1.74 mW
Estimated annual savings: $500 000

Haas automation wanted to reduce their carbon footprint and reduce their energy costs and opted for two solar roos systems in partnership with Renusol.

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50. Niner Wine Estates

Country: Paso Robles, United States
Solar PV: REC Solar
Size: 388.47 kW
Estimated payback period of 5 years

Niner Wine Estates is a Sustainability in Practice Certified winery and has an LEED status. Through their solar energy system they generate 100% of their energy needs.

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51. Valley Fine Foods

Country: Benecia and Yuba City, United States
Solar PV: REC Solar
Size: 1.14 mW
Estimated annual savings: $250 000

Valley Fine Foods used a roof mounted and ground mounted solar system to reduce their energy cost.

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52. Tony Automotive Group

Country: Waipahu, United States
Solar PV: REC Solar
Size: 298 kW
Estimated savings over 25 years: $5.3 million

Tony Automotive groups has Honda, Nissan and Hyundai dealerships in Hawaii. The need for solar energy was great, because Hawaii has the highest energy costs in the nation.

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53. Windset Farms

Country: Santa Maria, United States
Solar PV: REC Solar
Size: 1.05 mW
Estimated annual savings: $245 000

The Windset Farms installed more than 4000 solar energy panels on their roof to curb their rising energy bill.

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54. Vintage Wine Estates

Country: Santa Rosa & Hopland, United States
Solar PV: REC Solar
Size: 945 kW
Estimated savings over 30 year period: $10 million

Vintage Wine Estates used a combination of roof mounted and ground mounted solar panels to reduce their utility costs.

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55. AWTA

Country: Bibra Lake, United States
Solar PV: Conenergy
Size: 350 kW
Estimated annual savings: AUD$169 000

AWTA is the largest wool testing organization in the world. The installed 1085 solar panels on their roof and produce 32% of their energy consumption.

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56. Transmin

Country: Malaga, Australia
Solar PV: Suntech
Size: 40 kW
Estimated annual savings: AUD$15 200

With the help of the AusIndustry Clean Technology Investment Program, Transmin made their operations more sustainable with 174 Suntech panels and 2 SMA solar inverters.

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57. Mining & Hydraulic Supplies Pty Ltd

Country: Malaga, Australia
Solar PV: Solarpower
Size: 7 kW
Estimated annual savings: AUD$1900

Mining & Hydraulic Supplies has reduced their electricity bill significantly and generate 80% of their energy with solar panels.

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58. T&G Corporation

Country: Perth, Australia
Solar PV: Suntech
Size: 33 kW
Estimated annual savings: AUD$9800

In the preceding years T&G Corporation saw their utility bills rise 28%. With solar energy the made their future energy bills predictable again.

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59. Firesafe United Group

Country: Bibra Lake, Australia
Solar PV: Hanwha
Size: 80 kW
Estimated annual savings: AUD$23 500

Firesafe United Group installed 3 solar energy systems on their roof to optimize their energy costs.

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60. Pacific Nylon Plastics Australia

Country: O’Connor, Australia
Solar PV: Canadian Solar
Size: 20 kW
Estimated annual savings: AUD$10 700

Pacific Nylon Plastics Australia used the redevelopment of their buildings to make their operations greener with the installation of 80 solar pv panels

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61. Sheridan’s

Country: West Perth, Australia
Solar PV: Daqo
Size: 15 kW
Estimated annual savings: AUD$6 100

Sheridan’s installed with their installation partner Infinity Energy 60 solar panels on their roof and one fronius solar inverter.

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62. Signs & Lines

Country: Midvale, Australia
Solar PV: Q Cells
Size: 40 kW
Estimated annual savings: AUD$13 500

Cost control was a major reason for Sign & Lines to choose for a roof mounted solar energy system.

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63. Slumbercorp

Country: Welshpool, Australia
Solar PV: REC Solar
Size: 40 kW
Estimated annual savings: AUD$16 100

Cost control was a major reason for Sign & Lines to choose for a roof mounted solar energy system.

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64. WA Glasskote

Country: Landsdale, Australia
Solar PV: REC Solar
Size: 40 kW
Estimated annual savings: AUD$10 200

WA Glasskote generates 12% of its energy consumption with their solar energy system.

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65. Dobbie

Country: Malaga, Australia
Solar PV: REC Solar
Size: 200 kW
Estimated annual savings: AUD$82 854

Dobbie wanted to reduce their impact on the environment and their energy costs.

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66. Pindan

Country: Belmont, Australia
Solar PV: REC Solar
Size: 30 kW
Estimated annual savings: AUD$15 100

Pindan, a construction company, generates 7% of their energy usage with solar panels.

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67. Wallis Drilling

Country: Midvale, Australia
Solar PV: REC Solar
Size: 67 kW
Estimated annual savings: AUD$28 900

Wallis Drilling wanted to reduce their costs and make their operations more sustainable. They choose for a roof mounted solar energy system with four Fronius solar inverters. Their solar energy electricity consumption represents 47% of their total energy consumption.

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68. Geostats

Country: O’Connor, Australia
Solar PV: REC Solar
Size: 20 kW
Estimated annual savings: AUD$6 600

Geostats wanted to make their operations more environmentally friendly and optimize their energy costs.

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69. Eilbeck Cranes

Country: Bassendean, Australia
Solar PV: Canadian Solar
Size: 40 kW
Estimated annual savings: AUD$15 800

Eilbeck Cranes installed 156 Canadian Solar on their roof connected to two Fronius inverters monitored with Fronius Remote Monitoring Solution.

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70. Arbortech

Country: Malaga, Australia
Solar PV: Poly Solar Panels
Size: 40 kW
Estimated annual savings: AUD$13 000

Arbortech wanted to reduce its dependency on the utility prices by switching to rooftop solar.

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71. Australian Safety Engineers

Country: Canning Vale, Australia
Solar PV: REC Solar
Size: 40 kW
Estimated annual savings: AUD$22 100

Australian Safety Engineers wanted to decrease their utility bill. They opted for a rooftop solar energy system.

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72. Stylewoods

Country: Kewdale, Australia
Solar PV: Winaico Solar Panels
Size: 40 kW
Estimated annual savings: AUD$31 500

Stylewoods wanted to reduce their energy bill to free up more working capital for their operations.

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73. Plas-Pak

Country: Malaga, Australia
Solar PV: Winaico Solar Panels
Size: 100 kW
Estimated annual savings: AUD$31 500

Plas-Pak wanted to maintain competitive prices for their clients and to make their company more environmentally friendly.

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74. John Papas Trailers

Country: Welshpool, Australia
Solar PV: REC Solar
Size: 40 kW
Estimated annual savings: AUD$13 300

John Papas Trailers reduced their dependence on grid electricity through the decision for a solar energy system.

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75. Quality Blast and Paint

Country: Welshpool, Australia
Solar PV: Sunpower
Size: 40 kW
Estimated annual savings: AUD$12 550

Quality Blast and Paint wanted to become more competitive through the adoption of solar energy.

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76. Pelagic Marine Services

Country: Freemantle, Australia
Solar PV: Sunpower
Size: 40 kW
Estimated annual savings: AUD$15 530

Pelagic Marine Services wanted to make their business more sustainable and more cost efficient and choose for a solar energy system installed by Infinity Energy.

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77. Twenty Two Services

Country: Neerabup, Australia
Solar PV: Sunpower
Size: 13 kW
Estimated annual savings: AUD$4 200

Twenty Two Services wanted to reduce their yearly CO2 emissions and their utility bills. Infinity Energy helped them install solar energy system containing 38 solar panels and one Fronius inverter.

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Public Sector Solar Energy

78. Yolo County

Country: California, United States
Solar PV: Sunpower
Size: 6.8 mW
Estimated savings over 30 years: $60 million

Yolo county wanted to reduce their energy bill and supply their residents with green energy.

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79. AC Transit District

Country: California, United States
Installer: Sunpower
Size: 177 kW
Estimated savings over 25 years: $5 million

ACT Transit District is is Sunpower helped AC Transit District with the installation of two solar energy projects.

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80. US Airforce Academy

Country: Colorado Springs, United States
Solar PV: Sunpower
Size: 6 mW
Estimated savings annual savings: $500 000

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81. Department of Mines and Petroleum

Country: Carlisle, Australia
Installer: Infinite Energy
Solar PV: Winaico
Inverter: SMA
Size: 40 kW
Year 1 Return on Investment: 31%
10 Year Net Present Value: $69 200
Annual Savings: $15 400

Infinite Energy installed 153 solar panels on the roof of the Department of Mines and Petroleum. The projected return is 2.8 years.

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82. Sacred Hearts Academy

Country: Hawaii, United States
Installer: Hawaiian Energy Systems
Solar PV: Centrosolar America
Solar Inverter: Enphase
Size: 243 kW
Cost Reduction: 33% annually

Sacred Hearts Academy is a private school in Honolulu, Hawaii. Hawaiian Energy Systems inc. and Centrosolar America installed 1023 panels on three different sun orientations and was completed in 2013.

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83. Ina Levine Jewish Community Center

Country: Arizona, United States
Installer: Green Choice Solar
Solar PV: Centrosolar America
Size: 1.3 MW
Cost reduction: $6.8 million lifetime system

The Ina Levine Jewish Community Center delivers services to the Scottsdale community. Green Choice Solar installed 5685 solar panels on two locations. One part of the panels was installed on the roof and the majority was installed on 400 carports.

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84. Fire station Gifhorn

Country: Germany
Installer: Elektro Ohlhoff
Solar PV: Yingli Solar
Inverter: Kaco Powador
Size: 60.86 kWp
Cost Reduction: €25900

The roofs of the fire station in Gifhorn presented a perfect solar energy investment opportunity. It was an easy decision for the local government of Gifhorn.

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85. University of Colorado

Country: Boulder, Colorado, United States
Installer: Eco Depot USA / Solarado Energy
Inverter: SatCon Technology Corporation
Size: 100 kW
Average Annual Savings: $21 750
Return on investment: 7.9%

In septembre 2009 the University of Colorado installed solar panels on a solar carport. This project was part of a LEED Platinum certificate process for which the University applied. The LEED platinum status is the highest green building status that can be achieved in the LEED program.

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86. Rotary Residential College

Country: Kensington, Australia
Installer: Infinite Energy
Solar PV: REC Solar
Inverter: SMA
Size: 40 kW
Year 1 return on investment: 33%
10 year Net Present Value: $69 000
Annual Savings: $20 400

Rotary Residential College is a high-school with a lodging service to their students. Infinite Energy helped the Rotary Residential College with the installation of 153 REC solar panels on their roof.

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87. Solar Carport Santa Cruz

Country: Santa Cruz, California, United States
Installer: Swenson Solar
Size: 386 kW
Annual Savings: $73 000

The city of Santa Cruz choose Swenson Solar to build two solar carports with 834 and 936 solar panels installed on them.

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88. Hurstpierpoint College

Country: Hurstpierpoint, United Kingdom
Installer: Enviko
Solar PV: Conergy
Inverter: SMA
Size: 53.75 kW
Yearly Income and Savings: £10 151

Hurstpierpoint is a college home to more than 1000 students. The college wanted to reduce their energy bill and demonstrate their green credentials. The solar panels are installed on three different roofs. Because of the feed-in-tariff the cost of the installation will be recovered in 6 years.

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89. San Ramon Valley Unified School District

Country: Danville, United States
Solar PV: Sunpower
Size: 3.3 mW
Estimated savings over 25 years: $24.4 million

The San Ramon Valley Unified School District was confronted with the reduction of their budgets and growing energy bills. Getting solar energy was their solution.

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90. University of California Merced

Country: Merced, United States
Solar PV: Sunpower
Size: 1.1 mW
Estimated savings over 20 years: $5 million

The university wanted to reach their sustainable goals and with no upfront cost the adopted solar energy through a power purchase agreement.

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91. Stonehill College

Country: Easton, United States
Solar PV: Sunpower
Size: 2.8 mW
Estimated savings over 20 years: $1.8 million

The Stonehill College started the Stonehill Goes Green campaign to reduce their gas emmission with 20% by 2020. That is why they switched to solar energy paid through a power purchase agreement.

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92. Inland Empire Utilities Agency

Country: San Bernardino County, United States
Solar PV: Sunpower
Size: 3.5 mW
Estimated savings over 20 years: $3 million

The Inland Empire Utilities Agency has the objective to be 100% powered by renewable energy by 2020.

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93. Phelan Piñon
Hills Community Services District

Country: San Bernardino County, United States
Solar PV: Sunpower
Size: 1.5 mW
Estimated savings over 30 years: $13 million

The Phelan Piñon Hills Community Services District was confrented with fast growing electricity prices and lowered their cost with solar energy.

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94. Bundaberg Christian College

Country: Bundaberg, Australia
Solar PV: Hanwha Q Cells
Size: 193.98 kWp
Estimated annual savings: AUD$100 000

The Bundaberg Christian College has opted for a solar energy system with battery backup, the largest system of its kind at an Australian school.

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95. Cathedral College

Country: Rockhampton, Australia
Solar PV: Q Cells
Size: 85 kWp
Payback period of six years

Because of it strong commitment to sustainability, Cathedral College opted for solar energy.

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96. Emerald Marist College

Country: Central Highlands, Australia
Solar PV: Q Cells
Size: 100 kWp
Estimated annual savings: AUD$40 000

Due to high air conditioning usage and electricity bills during the summer months, Emerald Marist College, choose to install a solar energy system on its roof.

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97. Pleasanton Unified School District

Country: Paso Robles, United States
Solar PV: REC Solar
Size: 1 mW
Estimated saving over 25 years: $2.2 million

The Pleasanton Unified School District made the switch to solar energy through a power purchase agreement. The solar panels were placed on solar carports.

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98. Roseville Joint Union High School District

Country: Paso Robles, United States
Solar PV: REC Solar
Size: 1.02 mW
Estimated saving over 25 years: $8 million

The Roseville Joint Union High School District installed solar panels over their parking structures.

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99. St Catherine’s College

Country: Crawley, Australia
Solar PV: Sunpower
Size: 200 kW
Estimated annual savings: AUD$84 000

The Roseville Joint Union High School District installed solar panels over their parking structures.

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100. City of Perth – Depot

Country: Perth, Australia
Solar PV: Sunpower
Size: 39 kW
Estimated annual savings: AUD$16 100

The city of Perth wanted to make their depot more sustainable and more cost efficient. 

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