ESI

09/10/2026

Built on people.

For Noah Pearcy, O&M is about more than keeping equipment running - it's about taking ownership, solving problems, and being someone your team can count on.

Noah started in the field at 19, helping build RNG facilities from the ground up, and has now stepped into a new role as Technical Services Manager on ESI's O&M team. When a critical compressor failed, he loaded it on a trailer and drove it to the manufacturer in Ohio himself to fast-track the rebuild. When Hurricane Helene shut a facility down for two weeks, he cut his way into town, checked on his operators first, then drove 90 minutes to find cell service and confirm his team was safe.

That's the ESI approach: finding the problem is only the beginning - the goal is the solution. It's backed by an O&M organization of 70+ operators and deep experience.

As Noah puts it: "We have people on the ground that provide value to asset owners. That's what we do."

Investing in people isn't separate from operational excellence. It's how operational excellence is built.

Read Noah's story: https://hubs.ly/Q04wZ98x0

09/07/2026

Happy Labor Day.

From the engineering office to the landfill, our engineers, operators and field teams keep renewable energy flowing around the clock. Today, we're honoring the people who keep us moving.

Thank you for everything you do. Enjoy the day.

09/03/2026

Building an RNG facility creates the asset. Keeping it running creates the value.

ESI designed and built two renewable natural gas facilities in the southeastern U.S. - then stayed on to operate them. One sits near the pipeline and runs "steady as a rock." The other, 18 miles from the nearest pipeline, runs as a virtual pipeline: RNG compressed into trailers, hauled to a decant site, and injected there - roughly three loads a day, where every load that moves on time is revenue protected.

The ESI philosophy: take ownership of the outcome - because every clean operating day can mean $200,000 to $300,000 in revenue.

Backed by an O&M team of 70+ operators, the result is an estimated 97% uptime across the portfolio.

Building the facility creates the asset. Keeping it running creates the value.

Read the full story on our website from the first comment below!

09/01/2026

The AI boom has a power problem. Landfills have power.

Data center developers facing five-year-plus interconnection queues have started generating power on-site - roughly 101 GW of behind-the-meter natural gas generation has already been announced. When power is the constraint, energy that's already sitting there gets interesting.

And there's a lot of it: most of America's 598 landfill gas facilities generate proven, dispatchable renewable baseload - yet per the EPA, over 70% of the country's ~2,600 municipal landfills still make no beneficial use of their methane. On-site compute doesn't need a grid connection, and the EPA now promotes onsite data centers at landfills as a bridge model, with flows as low as 100 scfm potentially qualifying.

The part we don't have to speculate about: ESI has already built an off-grid landfill-gas-to-energy microgrid for a Utah client - no grid connection at all.

Distributed renewable baseload for modular and edge compute, bridge revenue during an RNG buildout, generation at compute-grade uptime - that's the work ESI has done since 2007.

Read the full article: https://hubs.ly/Q04w3XTL0

ESI | A TransTech Group Company

Explore how landfills can become power sources for data centers, leveraging existing methane gas to meet growing energy demands in a power-constrained market.

08/19/2026

Supporting renewable natural gas across 17 swine sites.

Most RNG stories are about building the plant. This one is about keeping it running - at scale.

ESI has taken on operations and maintenance for a 17-site swine methane capture program, managing the gas collection, conditioning, and processing systems that capture methane from manure lagoons for RNG production.

Swine operations bring real O&M challenges: covered lagoons must stay airtight across huge surface areas, gas quality shifts with the seasons, and 17 distributed sites demand centralized monitoring to catch issues before they affect uptime. That's what our SCADA platform and field service teams are built for.

From development through long-term operations, ESI is in it for the long haul.

ESI | A TransTech Group Company

08/13/2026

Inside the Industry - Term of the Week: Beneficial Use

Beneficial use is the practice of putting captured landfill gas to productive use as an energy resource, instead of flaring it or letting it escape.

Landfill gas is roughly half methane - a potent greenhouse gas and a valuable fuel. Beneficial use captures it and turns it into renewable natural gas, electricity, or fuel for nearby operations: keeping emissions out of the air while creating a domestic energy resource from waste that already exists.

That's the work our team is built for - from development studies through engineering, construction, and startup, ESI delivers the facilities that turn landfill gas into reliable renewable energy.

https://hubs.ly/Q04sZvbT0

ESI | A TransTech Group Company

08/06/2026

Twenty-one years. Thirty-five plants. A hundred phone calls a day. Meet David Curington.

Ask David Curington what he does, and he won't lead with the resume - not the nine RNG plants, or the twenty-six landfill power plants before them. He'll just say: "I'm not an engineer, I'm just a carpenter."

It undersells a lot. Construction is the family trade, going back three generations - he was fetching nails on job sites by twelve. Twenty-one years and thirty-five plants into this industry, he says he could build one without a drawing. His days start at 6:30, run two or three projects at once, and average a hundred-plus calls - but ask about the pecking order and he waves it off: "We're a team."

At seventy-two, what keeps him going? "Because I enjoy it." Then he laughs: "I can't go fishing every day."

People like David are why our plants come in on schedule. Proud to have him on the team.

Read his full story: https://hubs.ly/Q04s6d3g0

Discover how expert O&M can maximize performance and profitability for RNG facilities. Don't let inefficiencies cost your facility money.

08/05/2026

Building two RNG plants at once - and delivering both on schedule.

Two landfill-gas-to-RNG plants, hundreds of miles apart, designed, built, and commissioned in parallel - both delivered per contract, with one within a single day of its contractual completion date. On a two-year project, that's not luck.

How: one team moving in lockstep across both sites, fully in-house engineering (process, mechanical, controls, piping - not subbed out), and forward-thinking design. one runs at ~3,500 CFM today but was engineered for 7,000 SCFM, so it can double capacity without a second build.

Planning an RNG project? Talk to the team that's built 35 of them.

Read the full story: https://hubs.ly/Q04rZWFl0

ESI | A TransTech Group Company

Half of it is garbage gas. Here’s how ESI turns landfill gas into pipeline-quality RNG — and how we built two plants at once, both delivered on schedule.

07/14/2026

Engineering the future of renewable natural gas.

We took a Missouri landfill gas project from raw resource to running facility - a 3,000 SCFM landfill-gas-to-RNG plant, completed in 2024, turning what was once waste gas into pipeline-quality renewable natural gas.

ESI delivered the full suite of engineering: civil, structural, geotechnical, process, mechanical, electrical, network, and controls. And because balance-of-plant equipment was fabricated in-house, we kept supply-chain risk down and the project on its critical path.

What set this project apart was doing it under one roof. Our sister companies Maddox Industrial Group handled process piping and installation, and Bendel Tank & Heat Exchanger fabricated and installed the heat exchanger on site. One team, from development through commissioning.

Have an RNG or biogas project on the horizon? Let's talk.

Read the full case study: https://hubs.ly/Q04pwp6z0

07/09/2026

As we head into Q3, we're taking a moment to recognize what drives everything we do at TransTech Group: our people.

"The work our people do across this platform requires exceptional skill and commitment, and I am proud of the craftsmanship and professionalism our teams demonstrate every day." — Greg Ezzell, President & Chief Growth Officer

That craftsmanship is the foundation we're building on. With strong momentum across our family of companies, we're looking ahead to a Q3 focused on delivering for our customers, investing in our teams, and continuing to grow — together.

Here's to the quarter ahead.