About Compressed BioGas (CBG) 

• Compressed Biogas consists mainly of methane (more than 90%) and other gases like carbon dioxide (less than 4%), etc. 
• CBG is produced by anaerobic digestion of biomass and waste sources like agricultural residue, cattle dung, sugarcane press mud, municipal solid waste, sewage treatment plant waste, etc. 
• This Biogas can be purified to remove hydrogen sulphide (H2S), carbon dioxide (CO2), water vapor and when this purified biogas (methane content more than 90%) is compressed to maximum 250 bar and filled up in cascades (group of high pressure cylindrical vessels), it is called Compressed Biogas or CBG.

CBG vs CNG

• CBG has calorific value and other properties similar to CNG and hence can be utilized as green renewable automotive fuel. 
• The difference is that while CNG is a by-product of petroleum, CBG can be produced from any biomass, be it crop residue, cattle dung, sugarcane press mud, municipal wet waste or effluents from a sewage treatment plant.
• This makes CBG a commercially viable option as it can be directly used to replace CNG in transportation fuel. Just like CNG, CBG too can be transported through cylinders or pipelines to retail outlets.

About SATAT

• The SATAT (Sustainable Alternative Towards Affordable Transportation) initiative was launched by the Ministry of Petroleum and Natural Gas in 2018 for boosting production and availability of Compressed BioGas (CBG) as an alternative and affordable clean fuel for the transportation sector. 
• The scheme envisages setting up of 5000 CBG plants by FY 2023-24. 

Why in News?

• IFGE- CBG Producers Forum is organizing Two Day Global Conference on Compressed Biogas under theme “Towards Progressive Policy Framework for a Robust CBG Foundation and Growth” supported by Ministry for Petroleum & Natural Gas.
• The Conference is being held with the objective to apprise the industry regarding the initiatives taken by Government of India for development of Compressed Biogas Industry and to identify the areas where policy modifications are required.  
• Compressed Biogas (CBG) has also an important role in emission reduction and it is being promoted by the SATAT Scheme. 

About Indian Federation of Green Energy (IFGE)

• Indian Federation of Green Energy (IFGE) is an umbrella organization which represents the interests of the national renewable energy sector in its totality including bio-energy, solar, wind, mini hydel, tidal, geo-thermal etc. IFGE is a partnership of committed groups of visionaries and stakeholders from diverse industries, business and services for creating a sustainable energy ecosystem and mitigate challenges and concerns. IFGE focuses on the area of Green Energy with the mission of promoting energy security in a sustainable manner in every sector of economic development through outreach activities like organizing workshops, conferences & policy advocacy initiatives.

About IFGE: CBG Producer Forum

• IFGE: CBG Producer Forum is dedicated forum for CBG Producers which aims the training and awareness programmes for LOI Holders, Stake Holders, Prospective Investors including the policy advocacy for the industry members.

https://pib.gov.in/PressReleasePage.aspx?PRID=1916778