Amperon's US Winter Grid Outlook:
Weak La Niña, Strong Uncertainty

This winter may appear mild at first glance, but the underlying signals tell a different story. Conflicting atmospheric patterns, rising electricity demand, and evolving grid conditions all point toward a season where volatility is very possible. To help market participants prepare, this white paper highlights the four key dynamics shaping the 2025–2026 winter outlook.

In this report, we examine:

The major climate and atmospheric forces shaping this winter’s uncertainty and why traditional signals may not tell the full story.

How evolving grid dynamics and market conditions are reshaping regional risk across the U.S. power system.

The operational and financial pressures emerging from shifting demand patterns as electrification and load growth accelerate.

The critical factors influencing short-term volatility and seasonal planning, and what energy professionals should be prepared for.

Download report