Ciris Energy Inc. has added Khosla Ventures to a list of companies that have invested in its proprietary technology, which it says biochemically converts coal to methane at large scale and low cost. While Centennial, CO-based Ciris did not disclose the amount Khosla invested, documents filed with the Securities and Exchange Commission indicate Ciris in December sold $23.9 million of a total $39.7 million of securities offered. It was the second round of financing for Ciris. Existing investors Braemar Energy Ventures, Rho Ventures and GE Energy Financial Services also participated in the funding, the company said. The financing will allow privately held Ciris to implement its first commercial-scale projects for in situ biochemical conversion of coal to methane, and bring its ex situ technology to commercial-ready status.
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