Final Project

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.


Burton Bellamy

• Has an A.S. in Engineering Technology from HCC

• Interested in DIY projects, alternative energy included

• Pursuing a degree in Mechanical Engineering


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.


Off Grid Systems


• Battery Banks, a good idea for everybody?

24 kWh System$3,500Would support our house For only 1 day.


An example of a Grid Tie PV system

Project Scope

• Site Plan• Monthly House Electrical Loads• Utility Costs• System Sizing• Panel Selection & Connection• Panel Calculations• Net Metering• Costs & ROI


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.


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.


Household Electrical Loads


Efficiency Calculations

• Tilt= tilt-(41-Lat)

• Lat: 28, Tilt:83

• Tilt=83-(41-28)=70

• 75% Efficiency


Efficiency Calculations

• Leaves us with 4140W (4.1kW)• 4.1kW x 5.6(MPH) x 31= 712kWh/m


Panel Selection

• Schott Poly 230

• 230 Watt output

• 30 Volts, 7.66 Amps

• Superb Warranty


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.


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


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


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


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


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


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.


Return of Investment (ROI)

• Formula = Investment / Yearly Income

• Investment Before Rebate = $21,606

• Investment After Rebate = $1,606

• ROI = ~2 Years


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!


Final Project

Documents

Transcript of Final Project