Product Description

Build the Right Kind of Digester

We build Second-Generation anaerobic digesters.  They produce up to 50% more energy for every kilogram of waste received, and that’s a huge advantage.  They’re also inherently much more stable and easier to manage.

What’s a Second-Generation digester?  Our digestion process is separated into two phases, each of which must be completed in separate vessels in the plant.  Raw wastes are broken down into very simple compounds in the first phase.  This initial step is required to make waste by-products available for methane production in the second phase.  Here’s the key–each of the two steps requires a significantly-different temperature and pH environment inside the vessel, to produce optimal results.

First-Generation digesters, (designed to process very consistent and simple materials like bio-energy crops), force both phases into a single vessel, leading to greater instability and lower rates of energy production when dealing with complex waste streams.

Second-Generation Digesters are the best choice for mixed commercial organic wastes, and for municipal ‘green bin’ collection programs, simply because these waste streams are so variable.

You should expect better than yesterday’s technology.  We don’t build first-generation digesters for complex wastes.


We’ll Custom Design Energy Outputs to Suit Your Needs


Our Energy First Approach

Some digesters just burn off the energy produced, without using it.  Others are inadvertently designed in a way that prevents much energy from ever being produced.

We know that energy revenue makes all the difference, so we design our facilities to absolutely maximize the amount of energy that is produced, day in and day out.  And in our own operations, we make daily decisions designed to maximize that energy revenue.  That’s what makes our operating costs so low.  We call this approach Energy First.

Every anaerobic digestion plant produces large amounts of energy, which translates into large amounts of revenue in a well-designed facility.  Technically, the plants actually produce biogas, an incredibly-flexible energy source that can be put to a wide range of uses, including:

  • generating electricity
  • production of industrial-grade heat and steam
  • replacement of natural gas; and
  • fuelling of any type of vehicle fleet


Our On-Farm digesters: Turn Manure Into An Asset

Many farms have taken advantage of the potential for generating revenue from their manure, through the addition of a biogas plant to their operation.  This is particularly true for the Canadian dairy and beef sector. Generating electricity for sale to the local utility can produce attractive returns on the capital invested, while providing a consistent and long-term revenue stream to support the farm into the future.

Manure management is also dramatically improved.  After passing through the farm digester, nutrients in the manures are converted into a form readily available to crops.  As well, odours normally associated with liquid manure spreading are dramatically reduced.

We have a long history of working with the agricultural sector, and have a deep understanding of what it takes to create a successful on-farm facility.  We believe that our Marl Creek Renewables project is simply the best on-farm digestion facility in Canada today. Check it out on our Website.


Having a fully-automated facility is great.  I have a beef feedlot to run.  We also crop.  The digester runs itself—timing of feeding, accuracy of feeding, operation of the CHP’s—it’s all automated and I can monitor and adjust things anywhere I can use my smart phone. 

Carl Frook—Marl Creek Renewables


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