Bryan Johnson spent years in consulting and management roles within the energy industry.

In 2015, however, he wanted to start his own venture and founded a startup company – Energy Tech Innovations.

“I always had a passion for these projects,” Johnson said.

Now, Johnson, who is in his 50s, is gaining some attention for his innovative biogas purification system, which he said may prove to be the lowest-costing biogas upgrading process to produce renewable natural gas on the market.

The Milwaukee Metropolitan Sewerage District has allowed Johnson to pilot his system at the district’s wastewater treatment facility on Jones Island. Johnson is also one of 50 finalists in the Wisconsin Governor’s Business Plan Contest, one of the premier competitions for entrepreneurs in the state. If ETI advances to the top 12 in the competition, he’ll compete for $100,000 in prizes.

Johnson currently operates out of a co-working space inside the 98,000-square-foot Global Water Center operated by The Water Council in Milwaukee, where more than 45 tenant organizations from across the globe work in water-centric research and testing. In 2016, Johnson was accepted into The Water Council’s BREW Accelerator, an accelerator for water-centric startup companies.

Johnson’s system uses a water wash method to purify biogas to produce renewable natural gas and carbonated water. Read the full story here.