Guatemala's PEG-5 Auction Is Reshaping Central America's Solar Supply Chain — Here's What It Means for 2026–2028 Procurement

The Numbers That Signal a Market Shift

Guatemala's Licitación Abierta PEG-5-2025 — the largest generation procurement in the country's history — closed its economic evaluation in March 2026 and awarded supply contracts on 16 April 2026 under tender terms published by the distributors. The results redraw the map of Central American solar supply:

• Up to 1,400 MW of firm capacitywas tendered on behalf of the distribution companies EEGSA, Deorsa and Deocsa, with supply obligations beginning in 2030 and contract terms of up to 15 years.
• 57 economic offers were awardedacross roughly fifty projects, the large majority involving renewable generation.
• Solar with battery storage was the largest single technology block, at approximately 713 MW— more than 60% of the renewable capacity awarded, ahead of hydro (about 140 MW) and hydro-plus-solar hybrids (about 98 MW).
• Renewables took the majority of the awarded capacity, against 175 MW of coal, 135 MW of petroleum coke and smaller volumes of gas and bunker fuel.
• The process closed with an average awarded price reported at approximately USD 101/MWh, following a 14-hour reverse auction.

For EPCs, developers and component procurement teams working in the region, this is not a trend to monitor — it is a project pipeline that will be engineered, financed and built between now and 2030.

Why Guatemala, Why Now

Guatemala has been methodically building the regulatory infrastructure to support large-scale renewable energy investment. PEG-5, derived from CNEE resolution 270-2024 and run under tender terms CNEE 108-2025, is the culmination of that process — a competitive auction that attracted international developers with proven track records in European and Latin American markets.

Three structural factors make the buildout significant from a supply chain perspective:

1. Grid connectivity and transmission infrastructure

Guatemala participates in SIEPAC (Sistema de Interconexión Eléctrica de los Países de América Central), the regional interconnection that gives large generation projects a pathway to regional export markets as well as domestic consumption. It is worth noting that the tender documents themselves identify transmission as a constraint: the national interconnected system has not been substantially upgraded in more than eight years, and reinforcement is one of the acknowledged challenges to delivering the awarded capacity on schedule.

2. Competitive auction design with international developer participation

The awarded developer list includes international names such as Ecoener and Cox Energy alongside established Guatemalan generators. Projects backed by experienced international developers apply procurement standards that go well beyond price comparison — they require documented, auditable supply chains.

3. A concentrated delivery schedule

Commissioning is heavily weighted toward the start of the supply window: approximately 1,058 MW is scheduled to begin operating in 2030, with the balance following in 2031–2033. For mounting-system suppliers, that translates into a construction and procurement peak in 2028–2029 — close enough that qualification work done now is directly commercial.

The Ground-Mounting Requirement at Scale

For projects of this size, the structural characteristics of Guatemala's terrain introduce specific engineering considerations:

Seismic zone classification: Guatemala sits on the boundary of three tectonic plates (North American, Caribbean, and Cocos). The country is classified as a high seismic hazard zone, and ground-mounting systems must account for seismic loading in addition to wind and soil conditions. Racking suppliers need to be able to provide seismic load calculations alongside standard wind load documentation.

Soil variability: The Guatemalan highlands — where many of the large solar resource zones are located — feature volcanic soils with variable bearing capacity. Site-specific geotechnical investigation and customized pile design are not optional for utility-scale projects; they are required for structural certification.

Elevation and temperature differentials: Projects at higher elevations experience greater diurnal temperature swings, which affects the thermal expansion behaviour of aluminium rail systems and the long-term fatigue performance of connection hardware. Racking designs that perform reliably across a wide temperature range are better suited to Guatemalan highland conditions.

What International Developers Require from Racking Suppliers

Projects led by developers with European headquarters and international financing apply procurement standards that go well beyond price comparison. Based on the requirements common to this class of developer, racking suppliers will be evaluated on:

Technical Documentation Package

• Site-specific structural engineering calculations, stamped by a licensed structural engineer
• Wind and seismic load analysis per local building code (AGIES NSE 2, the 2024 edition of Guatemala's structural safety standard, or an equivalent international standard)
• Foundation design with geotechnical input parameters
• Material specifications and mill test reports (MTRs) for all structural steel
• Galvanization certification (HDG per ASTM A123or EN ISO 1461)

Quality Management

• ISO 9001:2015 certification for manufacturing processes
• In-line dimensional inspection reports
• Third-party factory audits (increasingly standard for IFC-financed projects)

Logistics and Delivery Capability

Port of entry for Guatemala: Puerto Quetzal (Pacific) or Puerto Santo Tomás de Castilla (Atlantic). Suppliers need documented experience with container loading optimization for racking components and on-time delivery performance records for comparable project scales. Given the scale of the larger awards, phased delivery scheduling aligned with the construction site's installation sequence is a coordination requirement, not a nice-to-have.

Project References

• Demonstrated delivery of comparable scale (50 MWp+) ground-mounted projects in Latin America or equivalent markets.

The Procurement Timeline: Acting Ahead of the Curve

Based on the official tender schedule and expected construction programmes, the procurement calendar now looks like this:

The strategic opportunity sits in the third row. Technical qualification, documentation and references are decided ahead of the RFQ stage — and suppliers already carrying a complete engineering package move to the front of the shortlist when formal bidding opens.

Central America as a Long-Term Growth Region

Guatemala's PEG-5 is not a one-time event. It reflects a broader regional shift toward structured, internationally bankable renewable energy procurement across Central America — a dynamic already visible in Central Europe's solar market. Honduras, El Salvador, Costa Rica and Panama all have active renewable energy targets and developing auction frameworks. The supply chain relationships established through Guatemala's 2026–2030 development cycle will position suppliers advantageously for the next wave of regional procurement.

For solar mounting manufacturers with the technical capability, certification documentation and logistics infrastructure to serve utility-scale international projects, Central America represents one of the most accessible and actively developing export markets of the next three years.

Farsun's Readiness for the Guatemala Market

Our team has been tracking Central American renewable energy development closely. We manufacture fixed-tilt and adjustable-tilt ground-mount systems designed for utility-scale applications, with full structural engineering documentation packages available for seismic and wind load compliance in Latin American markets — including hot-dip galvanized ground mount structures and galvanized ground screw piles engineered for site-specific soil conditions. Our manufacturing and quality control process supports the documentation and inspection requirements that internationally financed projects demand, and we have delivered ground-mount racking for overseas solar projects.

We are actively building relationships with EPCs and developers participating in the PEG-5 pipeline. If your organization has been awarded capacity in this process — or is developing any other Central American solar project — we welcome an early-stage technical conversation to understand your mounting system requirements and timeline. Contact our international projects team or reach us through our export sales office.

Farsun Solar Mounting Systems — Precision Engineering for Utility-Scale Solar