Introduction :

GEDA has been implementing the Biogas Programme under State/ MNES financial assistance. Large size plants of various capacities i.e. 15 m3/day to 85m3/day ) plants are being installed to meet the cooking fuel needs of the households in the villages/Temples/ staff of Gaushla & Panjrapoles institutions.

For the last few years , we have focussed on the Gaushalas & Panjrapoles where for Biogas based captive power generation projects in decentralised manner. The dung potential is generally avaialable ( which otherwise would be used as fertiliser) in gaushala /panjrapole to go for Bio-gas plants . The produced gas is used to generate the electricity running the DG sets on dual fuel mode by the beneficiary . The digested slurry coming out of the plant is used for organic fertiliser production.

One such demonstration project has been commisioned in Nov’97 & has been working satisfactory at Shri Idar Panjrapole Sanstha – Idar. A brief note on the same is enclosed .

Potential :

Our State has enriched livestock population of about 18.3 million . This animal wealth produces about 37 million kgs animal dung , which has potential of producing about 1.2 milion cubic meter bio-gas . This huge amount can suffice the cooking fuel requirement of about 50 lacs families.

Power generation Potential :

Considering 0.6 m3 biogas /kwh electricity generation through dual fuel diesel generating sets , approximately total 12 lacs families may be facilitated by electricity supply for 4 hrs/day.

Technology Options :

Our Gujarat state has one advantage of very moderate seasonal tempreture variation i.e. unlike , Nothern belt region tempreture difference is varying between 25 to 45 degree centigrade which is favorable factor for bio-gas generation . Looking to our village flora & fauna , Standard floating dome plants ( KVIC 40 days – HRT , vertical model ) may be adopted for setting up decentralised/ captive utilisation based electricity generation projects.

Plant Capacities :

The plants of 15, 25, 35,45,60,85 m3/day capacity may be taken up for implementaion for bio-gas generation in modular fashion for meeting cooking fuel requirement on daily basis. However , having electricity generation as main objective, the plant capacities of 45 & above are preferred. One project on Bio-gas based electricity generation by using dual fuel Generator Set was installed at Idar Panjrapole Sanstha.. Two more project are under progress in Rajkot & Bhuj Districts.

Panjrapole Sanstha.. Two more project are under progress in Rajkot & Bhuj Districts.

The cost of DG set has not been taken into account , however if bio-gas is not to be used as cooking fuel & electricity is to be generated , cost of 85CMD plant (including DG set cost , other auxiliary equipment / modifications etc.) appears to be around Rs. 10 lacs approximately.