1. Final Project Renewable Energy Method: Solar Photovoltaic Mentors: Adrienne Gould-ChoquetteImanol Gabellanes Goicoechea USURBIL Presenters: Burton BellamyAndrew Sink Iberian Partnership for Technician Excellence, Summer 2012

2. Andrew Sink Studying Energy Technology at SCF Taken various courses related to Alternative Energy Electronics Hobbyist Very excited to be in Spain. Iberian Partnership for Technician Excellence, Summer 2012

3. Burton Bellamy Has an A.S. in Engineering Technology from HCC Interested in DIY projects, alternative energy included Pursuing a degree in Mechanical Engineering Iberian Partnership for Technician Excellence, Summer 2012

4. Project Scope We will be using what is known as a “Grid-tie” system, which allows the PV panels to interface with the electrical grid. We are going to show some of the technology and calculations that go into building a system such as this. Iberian Partnership for Technician Excellence, Summer 2012

5. Off Grid Systems Iberian Partnership for Technician Excellence, Summer 2012 Battery Banks, a good idea for everybody? 24 kWh System $3,500 Would support our house For only 1 day.

6. Iberian Partnership for Technician Excellence, Summer 2012 An example of a Grid Tie PV system

7. Project Scope Site Plan Monthly House Electrical Loads Utility Costs System Sizing Panel Selection & Connection Panel Calculations Net Metering Costs & ROI Iberian Partnership for Technician Excellence, Summer 2012

8. House Specifications 3-bed, 2-bath, 2,000 sq. ft., located in Tampa, FL. Single story, 5,000 gal. pool, 2 adults, 2 children. The pitch of the roof is 25.5 degrees, the front door is facing NE. Calculations made assuming the month of January. Iberian Partnership for Technician Excellence, Summer 2012

9. Household Electrical Loads The basic needs in an average Florida home. The kWh they consume monthly. Energy efficient products. Total monthly electrical load is 432.6 kWh. Iberian Partnership for Technician Excellence, Summer 2012

10. Household Electrical Loads Iberian Partnership for Technician Excellence, Summer 2012

11. Efficiency Calculations Tilt= tilt-(41-Lat) Lat: 28, Tilt:83 Tilt=83-(41-28)=70 75% Efficiency Iberian Partnership for Technician Excellence, Summer 2012

12. Efficiency Calculations Leaves us with 4140W (4.1kW) 4.1kW x 5.6(MPH) x 31= 712kWh/m Iberian Partnership for Technician Excellence, Summer 2012

13. Panel Selection Schott Poly 230 230 Watt output 30 Volts, 7.66 Amps Superb Warranty Iberian Partnership for Technician Excellence, Summer 2012

14. System Sizing Total of 237.6 sq. ft. of usable space on each side of the roof. We used 2, creating a usable area of 475.2 sq. ft. 12 panels on each side of the roof Orientation/Inclination Panels are 5.57 x 3.3 ft. in size. Iberian Partnership for Technician Excellence, Summer 2012

15. Panel Connection Series/Parallel Combination 3 groups of 8 in parallel. Each group provides 30 Volts, 61.28 Amps. Total when placed in series is 90 Volts, 61.28 Amps Iberian Partnership for Technician Excellence, Summer 2012

16. Inverter Technology Outback Inverter 6000W Provides an all-in-one solution for power conditioning. Regulator/Conditioner/AC Inverter 120V grid tie-in output, regulated voltage/current Provides a small battery back-up Iberian Partnership for Technician Excellence, Summer 2012

17. Component Costs Schott Poly 230 @ $400 ea. (24) $9,600 Outback Inverter 6000W @ $9,400 (1)$9,400 6 AWG Wire, 500 Ft. @$326 (1)$326 Mounting Hardware @ $190 (12)$2,280 Iberian Partnership for Technician Excellence, Summer 2012 Total System Cost: $21,606

18. Net Metering A brief introduction to Net Metering Replace 2 counters with 1 single Bi-Directional grid tie-in Meter. Now available through all Florida Utilities Iberian Partnership for Technician Excellence, Summer 2012

19. Total Costs Cost of installed system : $21,606 Cost of energy consumed/year: $467.20 Projected price of energy generated/year: $758.79 Price per kWh: $0.09 Iberian Partnership for Technician Excellence, Summer 2012

20. Rebate and Incentive Programs Florida Renewable Energy Technologies and Energy Efficiency Act Provides $4 a watt, maximum of $20,000 Federal Program Allows for 30% to be refunded as a tax credit. Iberian Partnership for Technician Excellence, Summer 2012

21. Return of Investment (ROI) Formula = Investment / Yearly Income Investment Before Rebate = $21,606 Investment After Rebate = $1,606 ROI = ~2 Years Iberian Partnership for Technician Excellence, Summer 2012

22. Conclusion Sensible amount of electrical loads Above 100% power generation Simple grid tie-in system Very low amount of maintenance Very low Return of Investment time A very good decision! Iberian Partnership for Technician Excellence, Summer 2012