Tag: biogas

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Anaerobic Digestion on the Farm Conference 2026

Research, Policy, Industry, and Innovation

9-11 June, 2026, State College, PA

About the Conference:

Anaerobic digestion on the farm has experienced a surge of interest and activity, owing to a variety of factors such as technology developments, public support, and increased awareness of its potential for energy production, rural livelihoods, ecosystem services, nutrient management, and other impacts.  As the science, technology, and policy develop in this space, new understanding is emerging as to the benefits vs. drawbacks, real vs. perceived …

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Renewable Natural Gas from Manure and Grasses: Business Opportunity Plan for “Sleeping Squirrel Farm”

Authors: Daniel Ciolkosz, Michael, Hile, Bill Lazarus, and Gary Musgrave, Penn State Extension

Overview:

This business opportunity plan describes the steps involved in establishing an on-farm anaerobic digester that produces biogas from a combination of manure and perennial grass (in this case, switchgrass), and sells it as Renewable Natural Gas (RNG) for injection into an adjacent pipeline. The overall configuration of the facility is described, sizes and capacities of major equipment are laid out, and estimated costs along with a …

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Grass to Gas Winter Webinar Series 2023-24, 24-25

Innovating a New Future for Anaerobic Digestion

Join us for monthly webinars on the emerging science that sits at the juncture of Renewable Natural Gas, Anaerobic Digestion, and Regenerative Agriculture.

Learn from thought leaders who are expanding what is known about transforming our agricultural sector in terms of its energy, economic, and ecological performance.

Engage in discussion about new discoveries about integrating biogas and regenerative agriculture together into the rural economy.

Who Should Attend?

All are welcome!  These webinars will be presenting new and emerging research in …

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Grass To Gas Anaerobic Digestion Q&A

This page lists questions and answers from the C-Change GrassToGas project’s PA Extension newsletter.  To be added to the newsletter mailing list, contact GrassToGas@psu.edu.

1. Question: Is switchgrass a good feedstock for biogas digesters?

Answer: Not usually. Anaerobic digestion involves microscopic organisms that eat energy-rich components such as sugars. Lignocellulosic biomass, such as switchgrass, contains sugars, but is structured in a way that specifically prevents easy access to its energy-rich components. Because of the limited accessibility to the energy-rich …

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Anaerobic Digestion and Biogas

 

Farm Energy IQ logo

This Biogas module provides reasonable expectations for investing in on-farm bio-digesters to convert animal waste to process heat and/or electricity. Learn how to calculate the number of animals needed to build a cost effective system.

Link to all of the Northeast Farm Energy IQ Curriculum, developed by Extension specialists from Penn State, Rutgers and University of Vermont.

This is part of the On Farm Energy Production Curriculum Series: 

Bioenergy Feedstock Production | Biodiesel and SVO | Biogas | Wood …

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Farm Energy Anaerobic Digestion and Biogas


Contents:barn

Articles and Fact Sheets

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Processing Biomass Into Biogas


Tables Of Contents

Anaerobic Digestion of Animal Manures: Understanding the Basic Processes

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Anaerobic Digesters and Biogas Safety

When manure is anaerobically digested, the biogas produced is primarily composed of methane and carbon dioxide, with lesser amounts of hydrogen sulfide, ammonia, and other gases. Each of these gases has safety issues. Overall, biogas risks include explosion, asphyxiation, disease, and hydrogen sulfide poisoning.

Image: US Municipal Supply Company.

Extreme caution is necessary when working with biogas. Adequate ventilation, appropriate precautions, good work practices, engineering controls, and adequate personal protective equipment will minimize the dangers associated with biogas. Wherever possible, …

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Biogas Utilization and Cleanup

Introduction

Biogas generated from anaerobic digestion processes is a clean and environmentally friendly renewable fuel. But it is important to clean, or upgrade, biogas before using it to increase its heating value and to make it useable in some gas appliances such as engines and boilers.

Biogas Utilization

While most large farms use their biogas for heat and power, it is worthwhile to consider all the options before deciding which path to take, including direct sale of biogas to an …

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Environmental Benefits of Anaerobic Digestion

The manure handling system of any farm is made up of many different components, each with a different function and purpose. An anaerobic digester, although only one component of the system, can greatly improve the environmental performance and efficiency of the overall system. The main effect of anaerobic digestion is conversion of organic matter to biogas. This conversion has many potentially beneficial environmental and management side effects.

Odor reduction

By removing organic matter, the digester reduces the organic matter-loading and …

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