S&P Global Names 59 Cleantech Suppliers as Tier 1 Leaders

⚡ AI Executive Summary

S&P Global Energy released its 2026 Tier 1 Cleantech Companies list, expanding the classification framework to include battery cell manufacturers for the first time. The list identifies leading suppliers across solar modules, PV inverters, wind turbines, energy storage systems and battery cells based on market position, financial strength and sustainability performance. The 2026 methodology now incorporates credit risk assessment through S&P's RiskGauge framework, providing a more comprehensive evaluation of supplier financial resilience alongside operational metrics and sustainability scores. This expansion reflects the diverging trajectories across cleantech segments: solar installations are forecast to decline in 2026 before recovering, while battery storage demand is accelerating driven by electrification and grid flexibility needs. The rating framework serves procurement professionals by offering a stable, annually-updated reference point rather than quarterly updates. For power utilities and grid operators, this classification matters because supplier financial stability directly affects long-term technology delivery, pricing predictability and supply chain resilience—critical factors as utilities accelerate renewable integration and deploy large-scale storage systems to meet rising demand and support grid stability.