Large-Scale Solar Photovoltaic Power Generation

Amid rising awareness of the environment and issues of fossil fuels and nuclear energy, there is growing interest in renewable energy. Solar photovoltaic power generation uses renewable energy that is natural, safe and sustainable.

In developing plants, RENOVA emphasizes dialogues with local communities and respects local history and culture. It independently deals with all processes from construction to maintenance after the start of operation.

At present, RENOVA operates and manages large-scale solar power plants with an approximate total capacity of 143.2 MW on a module basis in Itako, Ibaraki Prefecture, Futtsu, Chiba Prefecture, Kikugawa, Shizuoka Prefecture, Kokonoe-machi, Kusu-gun, Oita Prefecture, Nasushiobara, Tochigi Prefecture and Ozu-machi, Kikuchi-gun, Kumamoto Prefecture. Following the inauguration of the Karumai West and Karumai East Solar Power Plants being developed at Karumai-machi, Kunohe-gun, Iwate Prefecture, the total generation capacity will be approximately 353.6 MW on a module basis.

Our Power Plant


Friendly to the Planet

Friendly to the Planet

Electric power is generated from solar energy. It emits no waste, no effluent, no noises and no vibrations.
All the solar power plants that RENOVA operates have the effect of reducing CO2 by around 72,000 tons per year. Absorbing this much CO2 would require as many as five million Japanese cedar trees.

Meeting Electricity Demand of Some 40,000 General Households

Meeting Electricity Demand of Some 40,000 General Households

The total area of all the solar power plants that RENOVA operates is equivalent to nearly 35 times the area of Tokyo Dome baseball stadium. With a total capacity of 143.2 MW, they are capable of generating approximately 146.34 million kWh per year. This capacity is equivalent to the power consumption of around 40,000 general households.


Converting Light Energy from the Sun into Electricity

A solar cell is a device that converts light energy from the sun into electricity.
A solar cell comprises two semiconductors that differ in properties. One is called n-type silicon and the other p-type silicon.
In response to light, solar cells generate positively charged particles and negatively charged particles to produce electricity. Electric power generated at solar power plants is transmitted to households after its voltage and current are modulated.

Electricity Travels from Power Plant to Households

Electricity Travels from Power Plant to Households

Process towards Start of Operation of Large-Scale Solar PV Project

Process of Development of Large-Scale Solar PV Power Generation

  1. Planning(Development Phase)
    • Simulation of power production
    • Facility outline design
    • Revenues and expenses planning
    • Consideration on taking advantage of a subsidy program
  2. Procedures and negotiations(Development Phase)
    • Dialogues with locals
    • Consultations on grid connection
    • Actions for licenses, approvals and notifications
    • Negotiations with the governmental sector
  3. Fund procurement(Development Phase)
    • Consideration of the procurement scheme
    • Detailed project planning
    • Negotiations with financial institutions
    • Application for subsidy
  4. Design and construction(Development Phase)
    • Facility design
    • Selection of equipment
    • Construction management
    • Process management and coordination
  5. Start of operation(Operation Phase)
  6. Maintenance(Operation Phase)
    • Remote monitoring
    • Maintenance implementation