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Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)
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Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Dec 28, 2015

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Page 1: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Concentrator Photovoltaic Solar Generator

Presented by Max Goldberger

Hawaii County Economic Opportunity Council (HCEOC)

Page 2: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Description of the SystemThe concentrator photovoltaic system

simultaneously generates electricity and hot water for household use thereby eliminating water heater and drastically reducing cost for household electricity by conventional method.

When distributed generation units are attached to the electrical grid, it has the potential to sell excess energy back to the grid.

Page 3: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

To facilitate the market, laws currently require the utility company to allow systems up to 50kW to use net metering, with cumulative net metering agreements kept below 0.5% of the utility’s peak demand.

Increasing the net metering standards would allow more photovoltaic installations to sell power to the grid. This must be balanced with the need for the utility company to effectively utilize the intermittent generation.

Page 4: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Photovoltaic Components

Array – 7’ X 14’ Aluminum Channel for WaterFresnel LensesConcentrator CellsSun Tracking System10 Storage BatteriesTotal Cost for 3,000 watts (3kW) = $9,600

Page 5: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Electricity Generation Component

The core of the components is the triple junction solar concentrator photovoltaic cell manufactured by Spectrolab, a subsidiary of Boeing.

Cell has a 30% efficiency rate compared to conventional type photovoltaic which has 15-18 percent efficiency.

One concentrator cell produces 15 watts.

Page 6: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Fresnel lens intensify to 500 suns radiation at the focal point of each concentrator cell that will produce 15 watts per cell.

One concentrator cell requires one fresnel lens of approximately 500 sq. centimeters. These cells and fresnel lenses are arranged to form an array of 2.25 meters X 3.5 meters with a total of 200 cells and fresnel lenses.

The array of cells requires a tracking system. The photovoltaic unit will be connected to ten 24-volt

storage batteries capable of storing 15kWh electricity for use from sunset to sunrise of approximately 14 hours with 3kWh in excess for reserve power.

Page 7: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Water Circulation ComponentCold water 25oC (77oF) will flow through a channel

to cool the concentrator cells and the heated water exiting the array of 200 cells at 60oC to 75oC (140oF to 167oF) will be re-circulated for reuse after passing through a radiator for re-cooling to 25oC (77oF).

Hot water for household use is retrieved prior to hot water entering the radiator for cooling and stored in a holding tank of 120 to 180 gallon capacity at about 75oC (140oF).

Page 8: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Market Research and Evaluation With a housing shortage of 5,000 homes currently

existing, housing development has become one of the top priorities of the State and County governments. We make a strong assumption that our system will be in high demand for new homes once production begins.

Customers: Residents living in homes outside the utility grid and residents connected to utility grid to take advantage of net metering (pay utility company only the excess electricity used beyond kWh generated by homeowners private electricity generating system).

Page 9: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

BenefitsSimplicity of construction with minimum

service and maintenance once placed in operation.

Unit is compact, light, and can be easily transported and assembled.

After amortization of initial capital cost, no further costs are entailed, as solar energy is free.

Page 10: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Economic and Community Development: New industry is established. Improvement in the living environment,

socio-economic conditions will improve, generating economic activity contributing toward total community betterment.

Numerous tax credits and rebates available to make renewable energy technology investments affordable.

Page 11: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

State Tax Credits for Renewable Energy Systems

Solar Thermal Wind Photovoltaic

Single Family 35% or

$2,250

20% or

$1,500

35% or

$5,000

Multi-Family 35% or

$350/unit

20% or

$200/unit

35% or

$350/unit

Commercial 35% or

$250,000

20% or

$500,000

35% or

$500,000

Page 12: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Promotional PlanHCEOC acquired a dollar-a-year lease for a

2,100 sq. ft. piece of land at the Natural Energy Laboratory of Hawaii Authority (NELHA) Gateway Energy Center to demonstrate our concentrator photovoltaic solar energy system to the public.

Friends of NELHA (FON) is also interested in working with us to include our project in their weekly presentation and tours.

Page 13: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

In order to demonstrate the effectiveness of our photovoltaic unit at NELHA, we have erected a small house that will be equipped with household appliances such as a refrigerator, television, air conditioner, lights, water tank for hot water, and storage batteries to be charged for night-time electricity use.

Page 15: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Array Tracking System

Page 16: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)

Demonstration Hale

Page 17: Concentrator Photovoltaic Solar Generator Presented by Max Goldberger Hawaii County Economic Opportunity Council (HCEOC)