Resources & Downloads

Indicated here are a variety of resources that can provide you with additional insight and information about GreeneTec, our unique level of expertise, as well as information on renewable energy and the biogas industries.

If you have questions about anything you find here, and any topic that is not included, please contact us at

Biocycle Magazine articles authored by Paul Greene include:

101 for RINs

An in-depth explanation of the economic opportunities available to renewable natural gas suppliers to earn valuable Renewable Identification Credits (RINs).

Basics of Biogas Upgrading
Describes the process, technology, and economic opportunities associated with upgrading raw biogas to the standards for the gas pipeline injection and vehicle fuel markets.

101 for California’s Low-Carbon Fuel Standard

A deep-dive description of the history and ins-and-outs of the growing opportunities biogas producers have to sell their gas into the California Low Carbon Fuel Standard (LCFS) market.

Biocycle Article on Projecting Digester Project Gas Yield 

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