The renewable energy generator said the listing was an attractive investment proposition with a target dividend of £55m for the first full financial year following the flotation.
Based on Northampton Business Park, Infinis has about 360 employees and operates a wholly owned portfolio of 147 power generating plants across the UK in four divisions: landfill gas, onshore wind, hydro and wind development.
The business sells its power output through off-take arrangements and does not supply electricity directly to retail customers. Infinis' revenues are driven by the amount of electricity it exports to the grid. In the year to 31 March 2013, the group generated EBITDA of £125.4m on sales of £225.9m.
Turnover and earnings have climbed by 19 per cent and 25 per cent respectively over the past three years.
The organic pipeline of onshore UK wind projects under development provided a "clear opportunity" for the company to continue this profitable growth, Infinis said.
Chief executive Eric Machiels said: "Over the last five years, we have developed Infinis into the UK's leading independent renewable power generator. We have built a track record of successful and profitable growth and this offer will enable investors to participate in our continuing growth and value creation.
"With a highly attractive investment proposition combining stable and sustainable dividends with strong organic growth prospects, I am excited about the company's outlook and I look forward to working with our talented and experienced management team and employees to deliver the next phase of its development."
Chairman Ian Marchant said: "This offer comes at an extremely exciting time for Infinis and for potential investors, as the company is well positioned to build on its established position as the UK's leading independent renewable power generator to deliver further success and growth."
The initial public offer is expected to be completed, with the listing taking place, in November 2013.
Infinis is being advised by Barclays Bank, Deutsche Bank, London Branch, and RBC Europe as joint global Co-ordinators and joint bookrunners of the transaction with Barclays also assuming the role of sponsor.
Kempen & Co and Liberum Capital are acting as co-lead managers. Gleacher Shacklock and Climate Change Capital are acting as corporate finance advisers to Infinis.