January 28 2013 presentation_Sato and Suzuki Sensei Class

Solar cells

Panel

Modules

Tower

The Feasibility Study

THE QUESTION IS: IS IT FEASIBLE TO CONSTRUCT SUCH KIND OF RENEWABLE SOURCES OF ELECTRICITY IN THE TOKYO BAY AREA?

Based on the calculations and estimation....

The answer is YES

3D Solar Towers

Taking all these factors into account, studies show that solar energy is still byfar, the cleaner, more environmentally-friendly choice over non-renewable energy resources like gas, coal and oil.

In terms of costing, the future evolution of costs for generation of electricity from solar energy will depend on continued technological progress and breakthroughs. It will also depend on the potential for policies to create greater penetration and to accelerate the scale of production—largely an issue of long-term policy stability and policy clarity.

Thanks for Listening and ...

LET'S GO SOLAR!!

3D Photovoltaic

Solar Towers in

Tokyo Bay

America's Energy Future Panel on Electricity from Renewable Resources, and National Research Council,

2010, Electricity from Renewable Resources: Status, Prospects, and Impediments: The National Academies Press.

Bernardi, M., et. al, 2012, Solar energy generation in three dimensions, Energy Environ. Sci., 2012, 5, 6880.

Perez, R. and M. Perez, (2009a): A fundamental look at energy reserves for the planet. The

IEA SHC Solar Update, Volume 50, pp. 23, April 2009.

REN 21, Renewables 2010 Global Status Report, 19 (2010).

Internet Sources

• http://www.renewablegreenenergypower.com/solar-energy-facts-solar-energy-alone-can-power-the-world/#.UP4s_ScqZgs
• http://www.renewablegreenenergypower.com/solar-energy-facts/#.UP4hpycqZgs
• http://www.solarlighting.com/solar-energy-facts
• http://www.alibaba.com/showroom/submarine-power-cable.html
• http://virginislandsdailynews.com/op-ed/undersea-power-cable-cost-would-be-sky-high-1.1232131?localLinksEnabled=false
• http://en.wikipedia.org/wiki/Submarine_power_cable
• http://en.wikipedia.org/wiki/Price_per_watt
• http://www.ourgeojapan.net/2ogjTBAY.html
• http://wenku.baidu.com/view/bfe988efe009581b6bd9ebb1.html
• http://chestofbooks.com/architecture/Building-Trades-Pocketbook/Section-Modulus-Or-Resisting-Inches.html#.UM6-cESOEo0
• http://exploringgreentechnology.com/solar-energy/cost-of-solar-panels/

References

1 panel =

PHOTOVOLTAIC SOLAR POWER

Introduction

WHY SOLAR POWER?

“…one of the most promising renewable energy sources in the world”

Solar Energy

* non-polluting;

* has no moving parts that could break down;

* requires little maintenance and no supervision;

* life of 20-30 years with low running costs

1 min =can supply one day for the

world's energy (Solar

energy = 0.044 TW/min)

1 day = provides more energy than

our current population

would consume in 3.9 years

Environmetal Consideration

*There is no need to pay for fishery rights since the selected area is not covered by the this.

Other considerations:

Structure

COSTING:

Economical Consideration

Wind Loading

C(¥ cost) = ¥ 11,539,066,357.5 / [4,790 016 kWh (35)]

= ¥ 68.83 /kWh

The life span of the structure can last up to 35 years so the total cost will be:

Ct = C + [(C)5%)35]

= ¥ 4,196,024,130 + [(0.05)(¥4,196,024,130)(35)]

= ¥11,539,066,357.5

(1)Area of the H-shape beam: S1 = 0.1 * 0.001 * 2 + (0.23 – 2 * 0.01) * 0.01 = 0.0041 m2

Length of all the H-shape beams:

L1 = 40 * 1.6 m + 20 * 3.954= 143.08 m

(40 for connecting the modules to the columns and 20 for connecting each 2 modules)

V1 = S1 * L1 = 0.0041 m2 * 143.08 m = 0.586628 cubic meter

(2)Area for the H-shape column: S2 = 0.4 * 0.021 * 2 + (0.4 – 2 * 0.021) * 0.021 = 0.024318 Sq. m

Length of all the H-shape columns:

L2 = 2 * 40.5m =81 m (2 columns for 40.5 m tall each)

V2 = S2 * L2 = 0.024318 m2 * 81 m = 1.969758 cubic meter

(3)The total volume of the steel structure will be

V = V1 + V2 = 0.586628 m3 + 1.969758m3 = 2.556386 cubic meter

(4)The mass of the steel structure will be

m = * V = 7860 kg/m3 * 2.556386m3 = 20093.19396kg =22.149

(5)the cost of steel structure per tower

C1 = 200,000 yen/t * 21.813 t = 4,362,600 yen (including the labor cost)

100 m apart

E. OPEX (Running Cost/ Operational Expenses)

C = C1 (100) + C2 (100) + C3

C = [(100)(¥ 4,362,600)]+ [(100)(¥37,590,220.8)] +

¥ 742,050

= ¥ 4,196,024,130

D. CAPEX (Initial Cost of the Whole System)

G. Average cost of electricity (¥/kWh)

F. Total Cost of the Whole System

A. Cost of steel structure/tower

Detailed Computation

Detailed computation

5%/year of the initial cost

= ¥4,196,024,130*.05

= ¥ 209, 801, 206.5

Whole system

Detailed Computation

Technical

Details and Considerations

CONCEPT

One tower will be composed of 240 panels

Max Power Output per tower:

3.96 kW / panel x 240 panels = 950.4 kW

* a simulation done in a 3x3 sq.cm of 3D solar cell,

source: Energy Environ. Sci., 2012, 5, 6680

Structure

For the type of IEC 60228, it will be $ 0~999 /km average $ 500 /km ~ ¥ 41,225/km

*the distance of cables connecting each other:

100 m * 100 = 10,000 m = 10 km

*the distance from the centre of the solar tower field to the

nearest land in Chiba: 8 km

So the total length of the cables will be 10 km + 8 km = 18 km

The total cost of the cables will be:

C3 = ¥ 41,225 /km * 18 km = ¥ 742,050

PV system cost: $4.70per watt in Japan (source: Renewable & Sustainable Energy Reviews), hence:

$4.70/w = ¥ 329.6/w

So the cost of the PV sytem (inc. inverter etc.) per tower will be:

¥ 329.6/w * 95,040 w = ¥ 31,325,184

Including labor cost for the assembly:

C2 = ¥ 31,325,184 * 120% = ¥ 37,590,220.8

Strength

and

Length of

the Beams

C. Cost of submarine power cables

Detailed Computation

B. Cost of solar panels/tower

Detailed Computation

Tokyo Bay

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