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| ■ Large-Scale
Solar Power Generation Facility: "Solar Ark" |
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The design of the Solar Ark was
inspired by the vision of an ark embarking on a journey
toward the 21st Century. Only four columns are used
to support the entire structure, thus giving the impression
of it floating in the air.
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| 【Structure】 |
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| Construction |
Steel
frame with solid trusses. |
| Construction
Area |
3294.48
m2 |
| Area
of South Surface |
Approx.
7500 m2 |
| Overall
length |
315
m |
| Height |
31.6
m (center)
37.1 m (both ends) |
| Width |
4.3
m (top) - 13.7 m (bottom) |
| Height
Above Ground of the Lower Radiuses |
20
m |
| Pillar
Span |
126.6
m × 13.7 m (narrow side x wide side) |
| Cantilever
(Protrusions) |
94.2
m |
| Depth |
13.7
m |
| Weight |
Approx.
3,000 tons |
| Construction
company |
Kajima
Corporation |
| Wind
resistance・Earthquake resistance |
Resistant
to maximum wind speed of 34 m/s (peak
gust of 60 m/s) |
| Resistant
to level 7 on the Japanese earthquake
scale |
| Clear
Coating Material |
Fluorocarbon
polymer coating (guaranteed rust-proof
for 15 years) |
| Curvature |
Upper
radius: 2,001 m, Lower radius: 740 m |
| Construction
materials |
Designed
to be ultra-thin, giving the Ark the
impression of being suspended in the
air. Structural steel was used that
is 1.5 to 2 times the strength of normal
steel. |
| Made
using customized "G-Column"
pillars produced by Kubota. These high-quality
pillars are homogenous, due to a seamless
construction method that utilizes centrifugal
force. |
| Max.
diameter: 1,250 mm, Max. thickness:
120 mm, Pillar mass: Approx. 61 tons
per pillar |
| Base
and shafts |
4
shafts of 2000 mm in diameter and 31
m in length are cast in each pillar
and support pillars with a total of
16 shafts. |
Base
and shafts: (Base) Reinforced concrete
7.0 (W) x 7.0 (L) x 5.0 (D) m
4 pillars weighing a total of approx.
5,000 tons |
| Solar
lab |
Total
floor area of this 2-floor, steel-structure
building is 542.36 m2 |
9.3
(W) x 54 (L) m, Pillar span 9.3 x 36
m
The Lab is built in a piloti style at
a height of 4.5 m above the ground.
The building is structurally separate
from the Solar Ark. |
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| 【Solar Power Generator】 |
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| Overview
of Solar Cell Modules |
Type:
Single-crystal silicon solar cells |
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| Dimensions:
1,320 (W) x 895 (H) x 35 (T) mm |
| Weight:15
kg per cell |
| Number
of solar battery panels installed:5,
046 |
| Angle:
81 degree slant; 20 degrees west
from due south |
| Solar
Array Installation Type |
12
solar cell modules per unit (standard)
were assembled on the ground,
and 470 units were lifted up and
attached to the main body of the
Solar Ark. |
| Total
Power Generation of Solar Arrays |
Groups
of 6 solar cell modules are connected
in parallel, with 841 circuits
in total. |
| Max.
output: 630 kW, Estimated amount
of annual power generation: 530,000
kWh |
| Power
Conditioners |
Rated
output: 300 kW x 2 |
| Input
voltage: DC 270 V, Output voltage:
AC 440 V |
| Power
Distribution System |
Solar
energy-generated AC power is converted
to DC power, boosted to 6,600
V, and then passed through a substation within the complex. |
| The
generated power is used at plants
within the complex without reverse
power flows. |
| Number
of solar battery panels installed |
5,046 |
| Maximum
system power |
630
kW |
| Annual
electrical output |
Approx.
530,000 kWh |
| Amount
of Petroleum Saved |
Equivalent
to 7,145 kerosene cans (128,610
liters) per year |
| CO2
reduction |
95
t-C/year |
| Construction
company |
SANYO
Solar Energy Systems Co., Ltd. |
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