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Single Crystalline silicon PV module

CTCN
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Objective:
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Technology:
Country:
Japan
Maturity:

'The Photovoltaic effect is when two different (or differently doped) semiconducting materials (e.g. silicon, germanium), when in close contact with each other, generate an electrical current when exposed to sunlight. A single crystalline silicon PV module, using single crystalline silicon wafers, has highest conversion efficiency of commercial PV technologies, as well as high durability and reliability. A hybrid type PV module of single crystalline silicon and amorphous sillicon integrated by heterojuction is now commercialized. It has less decrease of efficiency under high temperature environment.

Benefits:

Energy saving: approx. 16 TJ/yr (LHV)CO2 reduction: approx. 880 tCO2/yr(total 1MW power plant(e.g. 100 sites of 10kW PV), 20% of capacity factor)(compared to single gas turbine)

Co-benefits:

Reduction of air pollutants (e.g. NOx, SOx, dust (if compared to fuel-fired power plant))Reduction of thermal effluentIntstalling electricity for off-grid region

Differentiators:

High efficiency up to 19.7%, and continuing R&D for target efficiency (20%@2017, 25%@2025)

Succes factors and requirements:

Environmental regulation (e.g. air pollutants)

Investments required:

0.8USD/Wp (Global average c-Si module selling price, source: RENEWABLE POWER GENERATION COSTS IN 2014, IRENA)

Timeframe:

Under consideration

Contact:

Ministry of Economy,Trade and Industry, JapanEmail: meti_low-carbon-technology@meti.go.jp