Exporting Biogas Upgrading Systems to the US — US Renewable Gas Producers

Biogas upgrading systems are the critical technology that transforms raw biogas—captured from landfills, dairy farms, and wastewater treatment plants—into pipeline-grade renewable natural gas (RNG). As the United States accelerates its decarbonization goals, demand for these systems has surged among US renewable gas producers who must meet stringent quality standards to inject RNG into the natural gas grid. This page provides a comprehensive guide for Latin American and African suppliers looking to enter the US market, covering technical specifications, supplier dynamics, buyer requirements, certifications, and pricing context. Coppermont’s advisory services bridge the gap between capable manufacturers abroad and sophisticated US buyers seeking reliable, cost-effective upgrading solutions.

The US RNG industry has grown exponentially, with over 250 operational RNG projects as of 2023 and an additional 500 in development [1]. Each project requires a biogas upgrading system tailored to its feedstock and output volume. For suppliers in regions like Brazil, Argentina, Chile, and South Africa—where agricultural and landfill gas resources are abundant—this represents a multi-billion-dollar export opportunity. However, success hinges on understanding US regulatory frameworks, technical standards, and buyer procurement practices. This page unpacks each layer to equip suppliers with actionable intelligence.

Product Specifications and Grades Relevant to US Buyers

Biogas upgrading systems are not one-size-fits-all. US renewable gas producers typically specify systems based on three core parameters: methane purity, methane recovery rate, and capacity. The dominant technologies include pressure swing adsorption (PSA), water scrubbing, membrane separation, and chemical scrubbing. For pipeline injection, the US requires RNG to meet the standards set by the Gas Technology Institute (GTI) and the American Society of Mechanical Engineers (ASME), particularly ASME B31.8 for gas transmission and distribution piping systems [2].

Methane purity must exceed 96% for pipeline injection, with oxygen levels below 0.5%, hydrogen sulfide below 4 ppm, and total sulfur below 30 ppm. Carbon dioxide must be reduced to less than 2% by volume. Suppliers must demonstrate that their systems achieve these thresholds consistently. Capacity is measured in standard cubic feet per minute (SCFM) of raw biogas input; US projects range from 500 SCFM for small dairy operations to over 10,000 SCFM for large landfill gas facilities. The most common specification is a modular, skid-mounted system capable of producing 1,000 to 5,000 SCFM of pipeline-ready RNG.

Additionally, US buyers prioritize energy efficiency—measured as methane slip—where losses should not exceed 1% of total methane throughput. Systems with methane recovery rates above 98% command premium pricing. The ISO 13686 standard for natural gas quality is often referenced, though US buyers typically defer to ASTM D1945 for gas composition analysis [3]. Suppliers should prepare detailed datasheets covering these metrics, along with operational temperature ranges (-20°F to 120°F) and altitude derating factors for installations in Colorado or California.

LATAM and Africa Supplier Landscape

Latin America has emerged as a competitive hub for biogas upgrading equipment, driven by its own growing RNG industry and manufacturing expertise. Brazil leads the region with over 30 biogas plants and a robust industrial base that produces pressure vessels, compressors, and membrane modules. Companies like Geo Energética and CIBiogás have developed systems tailored to sugarcane vinasse and landfill gas, achieving methane purities above 97% [4]. Argentina’s agricultural sector—particularly in the Pampas region—has fostered suppliers specializing in small-scale PSA units for dairy farms, with capacities under 1,000 SCFM. Chile and Colombia are smaller but growing, with suppliers leveraging European partnerships to offer membrane-based systems.

In Africa, South Africa is the primary supplier, with companies like Bio2Watt and the Renewable Energy Centre of Excellence at the University of Johannesburg advancing local manufacturing. These suppliers focus on landfill gas upgrading, given the country’s large waste-to-energy projects. However, supply chains remain fragmented, and many African suppliers rely on imported components from Europe or China. The opportunity for US buyers lies in sourcing complete systems from LATAM suppliers who offer lower labor costs and shorter lead times than European counterparts, while maintaining technical parity.

A key differentiator for LATAM suppliers is their experience with high-humidity biogas from tropical feedstocks, which requires robust water removal stages. US buyers in states like Florida, Texas, and California—where humidity is high—find this expertise valuable. Suppliers should also note that US buyers often require systems to meet UL or CSA safety certifications for electrical components, which may necessitate redesign of control panels. Coppermont can facilitate pre-qualification audits to ensure supplier capabilities align with US expectations.

US Buyer Types — Who Buys This, How They Procure, What Specs Matter

US renewable gas producers fall into three main categories: landfill gas developers, agricultural RNG operators, and wastewater treatment utilities. Each has distinct procurement processes and priorities.

Landfill gas developers, such as Archaea Energy (a BP subsidiary) and Montauk Renewables, operate large-scale projects with capacities exceeding 5,000 SCFM. They procure upgrading systems through competitive tenders, evaluating total cost of ownership over a 20-year lifespan. Key specs include methane slip below 0.5%, remote monitoring capabilities, and compliance with the EPA’s Renewable Fuel Standard (RFS) for RIN generation [5]. These buyers value reliability over upfront cost, given the financial penalties for downtime.

Agricultural RNG operators—primarily dairy farms in Wisconsin, New York, and California—use smaller systems, often 500 to 1,500 SCFM. They procure through equipment distributors or direct from manufacturers, with a focus on simplicity and low maintenance. Many farms lack in-house engineering staff, so suppliers offering turnkey installation and commissioning gain an edge. Specs must include odor control (since farms are near residential areas) and noise levels below 60 dB at 50 feet. The USDA’s Rural Energy for America Program (REAP) provides grants that offset capital costs, making price sensitivity moderate.

Wastewater treatment utilities, such as those operated by the DC Water and Los Angeles County Sanitation Districts, procure upgrading systems through public bidding processes. They require adherence to NSF/ANSI 61 for drinking water system components if the RNG is used for vehicle fuel, and compliance with state-specific air quality regulations. These buyers prioritize system longevity and ease of permitting, often specifying redundant compressors and dual-tower PSA designs.

Across all buyer types, the procurement cycle lasts 6 to 12 months from initial inquiry to purchase order. Suppliers must provide performance guarantees, typically backed by a bank letter of credit or parent company guarantee. Coppermont advises suppliers on structuring these guarantees to meet US legal standards.

Certifications and Import Requirements for This Product

Exporting biogas upgrading systems to the US requires navigating a web of certifications and customs requirements. The US Customs and Border Protection (CBP) classifies upgrading systems under Harmonized Tariff Schedule (HTS) 8421.39.01, covering machinery for filtering or purifying gases. The general duty rate is 2.5% ad valorem, but systems from countries with Free Trade Agreements (FTAs) may qualify for reduced rates. For example, Brazil has no FTA with the US, while Chile does under the US-Chile FTA, offering duty-free entry [6].

Beyond customs, the primary certification hurdle is the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC) for pressure vessels over 15 psi. Suppliers must have their vessels stamped with the ASME “U” symbol, which requires an authorized inspector from an ASME-accredited agency. This is a significant investment, but non-compliance means the system cannot be legally installed in most states. Additionally, electrical components must be listed by Underwriters Laboratories (UL) or the Canadian Standards Association (CSA) to meet National Electrical Code (NEC) requirements. The UL 508A standard for industrial control panels is particularly relevant.

For RNG destined for vehicle fuel, the system must comply with California Air Resources Board (CARB) Low Carbon Fuel Standard (LCFS) requirements, which mandate continuous methane monitoring and leak detection. While not a certification per se, suppliers must provide documentation that their systems enable compliance with CARB’s verification protocols. Finally, the US Environmental Protection Agency (EPA) requires RNG producers to register their facility and report under the Greenhouse Gas Reporting Program (GHGRP), but this is the buyer’s responsibility.

Suppliers should also consider obtaining ISO 9001:2015 certification for quality management, as US buyers increasingly require it for vendor approval. Coppermont helps suppliers prepare certification roadmaps and connect with ASME-authorized inspection agencies in their home countries.

Pricing and Lead Time Context

Pricing for biogas upgrading systems varies widely based on capacity, technology, and level of integration. As of early 2025, a small PSA system for 500 SCFM raw biogas input typically costs $400,000 to $600,000, including skid-mounted assembly and basic controls. A mid-range membrane system for 3,000 SCFM runs $1.2 million to $1.8 million, while large chemical scrubbing units for 10,000 SCFM can exceed $3.5 million. These figures exclude installation, which adds 20% to 30%, and site-specific engineering, which can add another 10% to 15% [7].

Lead times from LATAM suppliers are generally 4 to 6 months for standard designs, compared to 8 to 12 months from European manufacturers. African suppliers face longer lead times (6 to 9 months) due to component import delays. US buyers often factor in a 2-month buffer for customs clearance and final inspection at the port of entry—typically Houston, Los Angeles, or Savannah. Suppliers should quote on a CIF (Cost, Insurance, Freight) basis to US Gulf or West Coast ports, as inland freight to project sites varies.

Payment terms in the US market typically follow a 30% deposit with order, 40% upon completion of manufacturing, and 30% upon delivery. Some large buyers require performance bonds or retention of 10% for 12 months after commissioning. Suppliers should budget for warranty costs of 2% to 5% of the system price, covering parts and labor for one year. Coppermont advises suppliers on pricing strategies that balance competitiveness against European and Chinese rivals while accounting for shipping and tariff costs.

How Coppermont Connects Suppliers to Buyers

Coppermont serves as the strategic intermediary between LATAM and African suppliers and US renewable gas producers. Our team of trade advisors—with decades of experience in energy equipment procurement—conducts rigorous supplier vetting, including factory audits, technical capability assessments, and financial stability checks. We maintain a curated database of US buyers actively seeking new suppliers, from landfill gas developers with multi-year procurement plans to wastewater utilities issuing RFPs.

For suppliers, Coppermont offers market entry packages that include certification navigation, customs classification, and contract negotiation support. We help suppliers prepare technical proposals that align with US buyer expectations, including performance guarantees and warranty terms. Our platform also provides real-time trade data on US RNG project announcements, enabling suppliers to target the most promising opportunities.

For buyers, Coppermont reduces sourcing risk by pre-qualifying suppliers against US standards. We facilitate site visits, coordinate third-party inspections, and manage logistics from factory to project site. Whether you are a supplier looking to expand into the US market or a buyer seeking cost-effective upgrading systems, Coppermont provides the expertise and network to close deals efficiently.

Supplier CTA: Register with Coppermont to access US RNG buyer leads and certification support. Buyer CTA: Contact Coppermont to receive pre-vetted supplier profiles for biogas upgrading systems.

References

[1] US Energy Information Administration. “Renewable Natural Gas Production and Consumption.” EIA, 2024. https://www.eia.gov/energyexplained/biomass/renewable-natural-gas.php [2] American Society of Mechanical Engineers. “ASME B31.8 Gas Transmission and Distribution Piping Systems.” ASME, 2022. https://www.asme.org/codes-standards/find-codes-standards/b31-8-gas-transmission-distribution-piping-systems [3] ASTM International. “ASTM D1945-14 Standard Test Method for Analysis of Natural Gas by Gas Chromatography.” ASTM, 2019. https://www.astm.org/d1945-14.html [4] CIBiogás. “Relatório Anual 2023.” CIBiogás, 2023. https://cibiogas.org/relatorio-anual-2023/ [5] US Environmental Protection Agency. “Renewable Fuel Standard Program.” EPA, 2024. https://www.epa.gov/renewable-fuel-standard-program [6] US Customs and Border Protection. “Harmonized Tariff Schedule of the United States (2025).” CBP, 2025. https://hts.usitc.gov/current [7] US Department of Agriculture. “Renewable Energy for America Program (REAP) Grant Data.” USDA, 2024. https://www.rd.usda.gov/programs-services/energy-programs/renewable-energy-systems-energy-efficiency-improvement-guaranteed-loans