
120+
Projects and counting
Located on family farms, capturing dairy methane for beneficial use.
7
Projects
177K
Metric tons of CO2e reduced per year
408K
MMBTus generated
per year
41K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
Buttonwillow Cluster
The Buttonwillow Cluster has been producing RNG since January 2022 and has 7 operating digesters.
8
Projects
248K
Metric tons of CO2e reduced per year
554K
MMBTus generated
per year
58K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
Hanford Cluster
The Hanford Cluster has been producing RNG since May 2021 and has 6 operating digesters.
7
Projects
97K
Metric tons of CO2e reduced per year
243K
MMBTus generated
per year
23K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
Hilmar Cluster
The Hilmar Cluster has been producing RNG since September 2024 and has 7 operating digesters.
8
Projects
248K
Metric tons of CO2e reduced per year
554K
MMBTus generated
per year
58K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
Kern Cluster
The Kern Cluster has been producing RNG since August 2020 and has 8 operating digesters.
North Visalia Cluster
The North Visalia Cluster has been producing RNG since April 2021 and has 11 operating digesters. This cluster includes a combination project with 3 dairies sending manure to 1 centralized digester.
11
Projects
240K
Metric tons of CO2e reduced per year
548K
MMBTus generated
per year
56K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
South Tulare Cluster
The South Tulare Cluster has been producing RNG since April 2021 and has 23 operating digesters. This cluster is CalBio’s largest, with over 40 miles of pipeline connecting projects to the central upgrader.
23
Projects
365K
Metric tons of CO2e reduced per year
920K
MMBTus generated
per year
85K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
5
Projects
94K
Metric tons of CO2e reduced per year
237K
MMBTus generated
per year
22K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
West Visalia Cluster
The West Visalia Cluster has been producing RNG since October 2020 and has 5 operating digesters.
8
Projects
248K
Metric tons of CO2e reduced per year
554K
MMBTus generated
per year
58K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
South Dakota
The South Dakota digesters were developed in a joint venture with UGI Energy Services and Sevana Bioenergy.
2
Projects
62K
Metric tons of CO2e reduced per year
166K
MMBTus generated
per year
15K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
RNG Trucking
The RNG Trucking projects transports biogas via virtual pipeline from 2 digesters to CalBio’s existing biogas interconnection locations. Prior to being loaded into tube trailers, the biogas is upgraded and conditioned to remove impurities.
8
Projects
248K
Metric tons of CO2e reduced per year
554K
MMBTus generated
per year
58K
Passenger vehicle equivalents removed
from roads annually
*All listed numbers are current CalBio estimations.
Electricity
The Electricity Projects use multiple cutting-edge technologies to create ultra-clean electricity, including fuel cells and linear generators, for 9 dairy farms.

FOR DAIRY OPERATORS
Your Ideal Development Partner
CalBio is the ideal partner for dairy farms looking to convert waste into energy while also generating a new revenue stream.