Japan is on energy conservation mode. Government buildings are dark and thermostats are set to 28 degrees Celsius. Due to a lack of public support and new maintenance measures, onlyÂ 17 of 51 nuclear plantsÂ are currently operational. Before March 2011Â nuclear powerÂ accounted for 31 percent of Japanâ€™s electric energy needs.
In the aftermath of the March 11 earthquake and tsunami that triggered radiation leaks at Tokyo Electric Power Companyâ€™s (TEPCO) Fukushima Daichi plant, public support for nuclear power has plummeted. In aÂ June public pollÂ Asahi Shimbun, a prominent Japanese news media outlet, revealed that 74 percent of the Japanese public supports a policy to phase out nuclear power â€œwith a goal to abandon it.â€ Just as the 1970s oil crisis spurred innovation in nuclear energy in Japan, the Fukushima disaster presents Japan with the opportunity to diversify its energy sources.
With the future of nuclear power unclear, Japan is exploring renewable energy as an alternative to fill the energy gap. A bill that would incentive private investment in renewable energy was voted into law on August 26th. The bill proposes aÂ â€œfeed-in tariffsâ€Â mechanism, which requires utilities such as TEPCO, to purchase electricity generated by geothermal, solar, and wind sources at a tariff-rate. By promulgating renewable energy and setting a favorable tariff rate (still to be determined) the government is encouragingÂ investment in renewable energyÂ businesses and fostering an environment in which renewable energy can compete with conventional fossil fuel technologies.
With overwhelming bipartisan support for the bill, TEPCO is investing in renewable energy sources to ensure its own supply of energy. Just this month TEPCO began operating itsÂ Ukishima Solar Power plant. The plant will generate 7,400 Megawatt Hours (MwH) per year, which is the equivalent energy consumption of 2,100 households per annum. Additionally, TEPCO is also constructing another solar power plant, theÂ Ohigishima Plant, which is nearly double the size of Ukishima and will generate 17,700 MwH when it commences operation in December.
Despite this apparent shift toward renewable energy, TEPCO does not possess an adequate supply of renewable energy sources to meet consumer demand. Private companies such asÂ Softbank Corporation, a Japanese telecommunications and media Corporation, and Rakuten Inc., Japanâ€™s largest online shopping site, seek to address this gap and break into Japanâ€™s growing solar energy market. Softbank CEO Masayoshi Son recently announced plans to invest $1 billion on 10Â solar farms. Softbank plans to convert 20 percent of the 540,000 hectares of rice paddies currently not in production to generate 50 million kilowatts. Meanwhile, Rakuten is planning to sellÂ home-use solar panelsÂ later this year.
With government support, not only will solar power become an increasingly feasible alternative to nuclear power, but it also bolsters Japanâ€™s Kyoto pledge to reduce carbon dioxide (CO2) emissions. In September 2009, under Prime Minister Yukio Hatoyama, Japan pledgedÂ 25 percent reductionÂ in green house gas (GHG) emissions by 2020 compared with the 1990 level. This ambitious goal, however, was coupled with a plan for nuclear energy to comprise 60 percent ofÂ primary energyÂ by 2100 (compared with 10 percent now.) However, with a majority of its nuclear plants in decommission, TEPCO is relying onÂ thermal power plantsÂ to supply electric energy. By utilizing liquefied petroleum gas (LNG), coal, and oil, thermal power plants have led to an increase in carbon emissions and weakened Japanâ€™s commitments to the Kyoto CO2 pledge. By further developing renewable energy sources, Japan would demonstrate itsÂ commitment to the Kyoto ProtocolÂ and the countryâ€™s mission of â€œlead[ing] the world in the low-carbon revolution.â€
While solar power appears to be the great panacea for Japanâ€™s energy dilemma, questions about its sustainability and efficiency remain. Building new high-voltage electric transmission lines for potentially remote solar plants will require consumers to shoulder high utility costs. In addition to infrastructure costs, the actual cost of producing one 1 kWh of power through solar energy is greater relative to other energy sources. For example, theÂ home solar power system, such as the one proposed by Rakaten Inc., would cost Â¥40 ($0.52) per KwH, which is an 82.5 percent increase from the Â¥7 ($0.09) per KwHÂ cost of nuclear energy. The viability of solar power as a replacement for nuclear power source also depends on the way prices are set within the feed-in tariff bill. TheÂ Keidanren, Japanâ€™s largest business lobby, has warned that higher energy prices will undermine Japanâ€™s heavy industry competitiveness.Yet another factor in Japanâ€™s shift toward renewable energy is the countryâ€™s forthcoming new leadership. While Prime Minister Naoto Kan has advocated for aÂ â€œnuclear-free societyâ€Â it remains to be seen whether his successor will place the same value on renewable energy.
In the final analysis, renewable energy is a practical response to Japanâ€™s energy needs post- March 11. Japan is renowned for its capabilities as an innovative nation and its potential in the renewable energy sector marks no exception. The shift toward renewable energy will allow Japan to resume its global leadership role as an innovator and as a major proponent in the fight against global warming and climate change. In spite of the challenges in transitioning from nonrenewable to renewable energy, the long term benefit outweighs the near term costs. The March 11th disaster is an opportunity for Japan to rebuild, improve, and reposition itself as a global power.