final project renewable energy method: solar photovoltaic mentors: adrienne gould-choquetteimanol...
TRANSCRIPT
Final Project
Renewable Energy Method:
Solar Photovoltaic
Mentors:
Adrienne Gould-Choquette Imanol Gabellanes GoicoecheaUSURBIL
Presenters:
Burton Bellamy Andrew Sink
Iberian Partnership for Technician Excellence, Summer 2012
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
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
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
Off Grid Systems
Iberian Partnership for Technician Excellence, Summer 2012
• Battery Banks, a good idea for everybody?
24 kWh System$3,500Would support our house For only 1 day.
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
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
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
Efficiency Calculations
• Tilt= tilt-(41-Lat)
• Lat: 28, Tilt:83
• Tilt=83-(41-28)=70
• 75% Efficiency
Iberian Partnership for Technician Excellence, Summer 2012
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
Panel Selection
• Schott Poly 230
• 230 Watt output
• 30 Volts, 7.66 Amps
• Superb Warranty
Iberian Partnership for Technician Excellence, Summer 2012
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
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
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
Component CostsSchott 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
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
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
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
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
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