Recent Coverage

The Water-Energy Purchase Agreement: A Service Model for Industrial Process Water Treatment

Industrial Water & Wastes Digest

Distributed solutions for process water treatment, renewable energy generation and water reuse increase critical supply chain security for industrial businesses that often face high energy and process water discharge costs, as well as capped supply for production. However, onsite solutions often are perceived as cost-prohibitive, particularly for growing businesses in rapidly changing industries such as the craft beer industry.

Cambrian Innovation developed the Water-Energy Purchase Agreement (WEPA) to make accessible onsite, distributed solutions for process water treatment and water reuse.

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Catalyzing Commercialization: Electrically Active Microbes Clean Wastewater and Produce Energy

CEP Magazine

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With funding from the National Science Foundation, Boston-based Cambrian Innovation has developed the EcoVolt Reactor, a modular anaerobic wastewater treatment system. The reactor uses an electromethanogenic process in which microbes convert organic matter into biogas with a high methane fraction. The methane can be used to generate clean electricity and heat.

Episode 61: 100RC debuts all 100 cities; Cambrian’s water-as-a-service model


Inside Cambrian’s water-as-a-service financing model  (17:00)

GreenBiz senior writer Heather Clancy spoke to Matt Silver, founder and CEO of Cambrian, about the company’s innovative financing model called a water-energy purchase agreement (WEPA). Cambrian will install and operate wastewater treatment systems on a customer’s behalf over the lifetime of the contract.

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Don’t Waste It

Vineyard & Winery Management

Producing a single gallon of wine, from grapes to bottling (not including vineyard demands), typically requires six gallons of water, depending upon winery-specific procedures. And since they’re located in the most populated and highest water-consuming state in the nation, Californian winemakers have felt mounting environmental and economic pressures to reduce consumption and reuse wastewater.

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Winemakers Want to Treat Their Own Wastewater

Water Online

California wineries relying on new forms of wastewater technology are hoping treatment innovations will slow the shipment of water away from their businesses and their regions.

EcoVolt, a bioelectric wastewater system from Cambrian Innovation, is one technologies soaking up media attention lately. Already used “by big-name Sonoma County breweries,” the technology is now “spilling over into the Napa wine industry,” the Napa Valley Register reported.

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High-tech wastewater system makes Napa wine industry debut

Napa Valley Register

A wastewater treatment solution used by big-name Sonoma County breweries is spilling over into the Napa wine industry, with the prospect of reducing the shipment of wastewater out of county for treatment.

Rombauer Vineyards in St. Helena will be the first Napa winery to adopt the EcoVolt, a bioelectric wastewater system from Cambrian Innovation. The Boston-based company announced the partnership Tuesday. Already sporting a roster of brewery clients including Lagunitas, Bear Republic and Russian River, the company’s pairing with Rombauer may be the first of many with Napa wine producers.

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Winery Uses Cambrian’s Technology to Treat Wastewater Onsite, Generate Clean Energy and Increase Operational Savings

Environmental Leader

Napa Valley-based Rombauer Vineyards will be the first winery to install Cambrian Innovation’s EcoVolt, which will allow Rombauer to treat its wastewater onsite while generating renewable energy and enabling future reuse of the winery’s treated process water.

Water is a top concern for many California wineries and breweries, which face both limited water supply for productionand restrictions for wastewater discharge.

Rombauer says Cambrian’s EcoVolt will help it meet these challenges and further reduce its water-to-wine ratio. Using the system, the winery can treat its entire wastewater stream onsite while generating up to 30 kW of renewable electricity and heat.

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Beer and Wine Makers Turn to Charged Microbes For Clean Water, Power

Greentech Media

About 50 miles north of San Francisco, a brewery is quietly using a new type of technology, originally created to be used on a space station, to clean 50,000 gallons of dirty wastewater a day and generate energy in the process.

At the back of the brewery of Lagunitas Brewing Company, in Petaluma, Calif., three large shipping containers house an unusual design of electrically-charged microbes that consume pollutants in beer wastewater and generate usable biogas. The technology was created by an MIT-spinout called Cambrian Innovation, which is beginning to grow its customer list considerably in Northern California.

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Inside Cambrian’s Water-as-a-Service Financing Model


One of the most common observations fielded by wastewater treatment startup Cambrian Innovation after sales visits with prospective customers: “If you could only install this and operate this for us, we’d be ready to go.”

Founder and CEO Matt Silver took those comments to heart. Over the past six years, he quietly hired a team of financial whizzes to figure out how to make it far simpler to buy his company’s EcoVolt technology, a system that cleans industrial wastewater and converts the recovered materials into renewable biogas.

The result: a financing model that borrows from the principles of the power purchase agreements that many corporate renewable buyers are using to invest in solar and wind power resources. Cambrian calls its financing option a water-energy purchase agreement, or WEPA, if you prefer. It launched a $30 million fund in late 2015 to invest in the idea.

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