Solar Energy in Japan has a long future dating back to 1994 when the government introduced capital subsidies to boost solar energy installations on rooftops.Till 2004,Japan was the largest solar market in the world after which it was overtaken by Germany.After 2004,the growth in the solar industry tapered off as the government reduced the subsidies for solar panels to almost zero.The huge domestic market gave rise to Japanese companies like Sharp,Mitsubishi,Kyocera,Panasonic-Sanyo become top solar panel producers in the world.However the low cost Chinese solar module producers have pushed back most of the Japanese companies.Since the last year,the Japanese government has again started giving generous solar subsidies and feed in tariff to boost the renewable energy production in the country which remains far off targets.This has led Japan to become the top non-European market after USA and the growth seems set to continue in the future as well.Japan has relatively low installations costs and is much nearer to grid parity.Also lack of wind energy makes solar energy more attractive as a renewable energy choice.While large scale solar installations in Japan are almsot absent,there remain large numbers of rooftop solar installations.

Marubeni on the other hand is looking to focus its energy on the crucial Water Service Sector be expanding its footprint in emerging markets.Water Service is a great growth sector due to numerous demand drivers like increasing population,larger per capita requirements,decreased supply.There is already a lot of theories floating around that the next big wars in the 21st century will be due to water shortages.Marubeni has plans to spend around $300 million in acquisitions in foreign markets as it looks to increase its customer base to 10 million.Note Marubeni will be helped by the Japanese government which gives considerable aid and soft loan for water infrastructure projects in developing countries.Note French companies Suez and Veolia are the biggest water service companies in the world.