
We Build Profitable Projects
Our end-to-end, facility lifecycle solutions are designed to deliver maximum ROI for the life of your assets—with decades of engineering, operations & maintenance know-how built into every project.
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CONTACT US
Contact us today to speak with one of our biogas utilization project professionals at: (+1) 541-549-8766 or click to contact us below.
Engineering A Sustainable Future One Project at a Time
When you work with ESI, profitability and sustainability go hand-in-hand. We've been developing, designing, engineering, building, integrating, and operating leading-edge biogas utilization projects since 2007. Supporting more profitable projects than virtually any other competitor, there is no better partner to support your next profitable, sustainable waste-to-energy project.
Our projects collectively produce over 1 million MWh of renewable electricity—and over 50 million gallons of renewable vehicle fuel every year, off-setting approximately 1 million tons of carbon dioxide each year.
90+
Biogas Utilization
Projects & Counting
1 MM
Tons of CO2
Mitigated/yr.*
11.4 MM
Equivalent Acres of
Forests Planted/yr*
Proven Performance By Design
Biogas Utilization & Cleanup Projects
Construction/Operations Projects Utilizing Biogas
Best-in-Class SCADA/Control Systems
Renewable Natural Gas (RNG) Facilities

FREE Biogas-to-RNG Solutions Overview
Get a complete overview of our
Biogas-to-RNG Solutions including:
- A Company & Capabilities
- Services Overview
- Three Detailed LFG-to-RNG Project Case Studies
- More
What Makes Us Different?
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We Design it Like We Own itOur engineering design work is informed by a real-time feedback loop of ongoing project data—supporting continuous improvement that also incorporates recommendations and lessons learned from our own operations and maintenance field service teams.
We design it like we own it, because we know, from our own 'hands-on' experience, what it takes to maintain and manage your facility for maximum operational efficiency—and profitability. Learn about our engineering services here. -
SCADA & ControlsAs a biogas industry pioneer, ESI was an early proponent of advanced Supervisory Control and Data Acquisition (SCADA) and controls systems for renewable energy facilities.
Today, we’re the industry leader in cutting-edge SCADA system development, with over 30 SCADA/Control systems installed, all uniquely tailored to the biogas industry. Learn more about our SCADA solutions here. -
24-7 Maintenance - Your Parts Are On The WayIn 2017, the decision was made to annex the Sisters Airport to ESI's property holdings, following in overwhelming majority vote by the citizens of Sisters. The airport provides ongoing benefit to the community while supporting ESI's rapidly expanding business needs.
Maintaining an airport at our headquarters facilitates efficient travel and supports rapid, responsive service for any urgent needs of our O&M clients. Learn about our Operations & Maintenance solutions here. -
Predictive MaintenanceOur own in-house, experienced SCADA and Control personnel design, fabricate, and install fully custom SCADA and Control systems, to deliver 360° visibility across all your projects and give you the power to identify and optimize project and program-wide inefficiencies, reduce downtime, and maximize capacity.
With the added option of predictive maintenance, you can identify and address maintenance issues before they lead to equipment damage or shutdown. Learn More. -
Cloud Data Management & Optimization SolutionsOur GreenFleet cloud-based CRNG chain of custody tracking and data management solution lets you monitor, measure, track, and record gas attributes and logistics data across the complete CRNG delivery chain from production to pipeline injection—including the details required to receive renewable energy (RIN) credits.
GreenFleet continuously measures, monitors and reports on the flow of your CRNG, including tank trailer location, gas quality/Btu value, fill time, flow rates, gas pressure, temperature, and travel time—to and from all receipt and delivery points, up to and including injection. Learn about our CRNG chain of custody tracking solutions here.
Our Company

CAREERS
Join a team that is continually pushing boundaries in project development, engineering, construction, operations and maintenance , and more - delivering solutions to our customers across all phases of the biogas and RNG value chain.

HSE
We perform our work to the highest standards with a goal zero approach: zero incidents, zero accidents, and zero environmental releases. Our goal is to eliminate day-to-day perils - before they happen.

MISSION & VALUES
We define our success by the way we impact the lives of the people around us: from our team members & their families, to our customers, supply partners, and in the communities where we work.