South America Pumped Hydro Storage Market Size and Share - Growth Analysis Report and Forecast Trends (2026-2035)

The South America Pumped Hydro Storage Market attained a value of USD 14.4 Billion in 2024 and is projected to expand at a CAGR of around 9% through 2035, reaching USD 28.8 Billion by 2032. South America's massive existing hydropower infrastructure base - the continent generates over 50% of its electricity from hydropower - providing the topographic and geological foundation for pumped hydro storage projects; Brazil's and Chile's growing need for grid balancing services as solar and wind capacity additions create intermittency management requirements; Siemens Energy, GE Renewable Energy, and Voith Hydro expanding their pumped storage project development capabilities across South America; Chile's ambitious 70% renewable energy target by 2030 requiring large-scale energy storage to balance its growing wind and solar capacity; and Andritz AG's established South American hydropower equipment supply and service network positioning it for pumped storage project development are collectively driving market growth.

Key Market Trends and Insights

• Brazil dominates the South America Pumped Hydro Storage Market due to its massive existing hydropower infrastructure - over 110 GW of installed hydroelectric capacity - providing both the turbine technology expertise and the topographic reservoir infrastructure that enables pumped hydro storage facilities to be developed as add-ons or adjacent facilities to existing dams, reducing project development risk and capital costs.
• By System Type, Closed-Loop Pumped Storage Systems are growing fastest in South America, as these off-river systems with dedicated upper and lower reservoirs overcome the environmental and land tenure constraints of open-loop systems that require significant river flow modification - a critical consideration in South America's environmentally sensitive Amazon and Andean watersheds.
• Grid Stabilisation and Renewable Energy Integration are the primary pumped storage application drivers in South America, with Chile's rapidly expanding wind and solar capacity - requiring bulk energy storage to balance generation intermittency - and Brazil's grid frequency regulation requirements creating the market conditions for pumped hydro storage project investment decisions.

Market Size & Forecast

• Market Size in 2025: USD 14.4 Billion
• Projected Market Size 2032: USD 28.8 Billion
• CAGR 2026-2032: 9%
• South America Hydro Capacity: >110 GW

Pumped hydro storage (PHS) is the world's dominant large-scale energy storage technology, storing electrical energy by pumping water from a lower reservoir to a higher reservoir during periods of low electricity demand or excess renewable generation, and releasing the stored water through turbines to generate electricity when demand exceeds supply. South America's PHS market is in an emerging phase: the continent has extensive developed hydropower infrastructure but relatively few dedicated PHS facilities, creating a substantial development opportunity as the energy transition increases the need for bulk energy storage to balance intermittent renewables.

South America's geography provides exceptional PHS resources: the Andes mountain range running the length of the continent's western edge creates natural upper-lower reservoir elevation differences suitable for PHS development, while Brazil's highland-lowland transition zones in Minas Gerais, São Paulo, and Goiás provide similar topographic opportunities. Chile's Atacama desert has world-class solar resources that require storage for overnight dispatch, creating a compelling PHS development case in the Andean foothills above Chile's Pacific coastal generation zone. Brazil's national energy planning authority (EPE) has identified multiple PHS development sites with combined potential exceeding 20 GW as part of the country's long-term energy storage strategy.

Key Takeaways

• Chile's renewable energy transition - targeting 70% renewables by 2030 and 100% by 2050 - creates the most urgent PHS development need in South America, with the country's grid already experiencing curtailment of excess solar generation in the Atacama during daylight hours that PHS would convert to storable energy for evening demand periods.
• Brazil's EPE energy planning has identified over 20 GW of economically viable PHS potential, but project development requires long-term energy market contract structures that provide revenue certainty for the multi-billion dollar capital investments required - regulatory framework development is the critical bottleneck for Brazilian PHS market realisation.
• Andritz AG, Voith Hydro, and GE Renewable Energy's established South American hydropower equipment supply relationships position them advantageously for pumped storage project contracts, as operators and utilities prefer to source PHS equipment from suppliers with demonstrated South American hydropower installation and service capability.