A government panel proposed Wednesday that utilities pay ¥42 per kwh for solar power supplies in a renewable energy incentive scheme, a rate that could encourage investors to enter the nascent market.

Under the proposal drafted by the panel, the Ministry of Economy, Trade and Industry will introduce the new feed-in tariff scheme in July.

The panel recommended in a draft document that utilities pay ¥42 per kwh for solar supplies over 20 years. It also wanted utilities to pay ¥23.1 per kwh for wind power supplies coming from units with 20-kw capacity or above over 20 years, and ¥27.3 per kwh for geothermal power coming from units with 15,000-kw capacity or higher over 15 years.