U.S. State Policies Strengthen Energy Storage Role, Accelerating VPPs and Integrated Resource Planning

July 12, 2026

Morgan Lewis USA

Overview

In 2026, U.S. state-level energy storage policies are significantly enhanced, prioritizing battery roles in renewable integration, load growth, grid congestion, and data center reliability. State procurement mandates remain the primary driver for large-scale storage deployment, with storage now a core resource in Integrated Resource Plans. Demonstrative programs and incentives are expanding market access, while aggregation of Distributed Energy Resources (DERs) and Virtual Power Plants (VPPs) accelerates, aiming for both grid stability and decarbonization.

In Depth

Key Findings

U.S. state-level energy storage policies in 2026 have undergone significant strengthening, reflecting the increasingly vital role of batteries in integrating renewable energy, addressing growing load demands, mitigating transmission congestion, and ensuring reliability for critical infrastructure like data centers.

Policy Details

State procurement mandates continue to be the most potent driver for large-scale storage deployment, typically requiring utilities to develop or acquire specific amounts of energy storage capacity (often expressed in megawatts) by defined deadlines. Concurrently, reforms in Integrated Resource Planning (IRP) are embedding energy storage as a core resource in future power supply plans. This signifies a shift where storage is no longer merely an ancillary service but a fundamental planning component on par with generation and transmission. Pilot programs and incentive structures, including tax credits and subsidies, are further expanding market access for new energy storage technologies. Notably, the aggregation of distributed energy resources (DERs) and the acceleration of Virtual Power Plant (VPP) initiatives are gaining momentum. VPPs integrate smaller, decentralized storage systems, such as residential and commercial batteries, to operate as a single, large-scale power plant, contributing significantly to grid stability and resilience.

Background & Context

The U.S. power system faces multifaceted challenges, including aging infrastructure, the intermittency of increasing renewable energy penetration, and extreme weather events exacerbated by climate change. To address these issues, energy storage has been recognized as a crucial tool for smoothing renewable output, managing peak loads, enhancing grid resilience, and achieving decarbonization targets. State-level policy advancements, in conjunction with federal initiatives, are spurring new investment and technological innovation, accelerating the build-out of a cleaner, more robust energy infrastructure.

Strategic Significance & Outlook

Looking ahead, state energy storage policies are expected to become even more sophisticated, with refined targets and strengthened incentives. Distributed storage solutions, particularly VPPs, are poised to grow in importance as they offer benefits to individual customers while optimizing the broader grid. These policy trends provide stable growth opportunities for energy storage technology developers, project developers, and associated service providers. Furthermore, improved grid flexibility and reliability, facilitated by these policies, will accelerate the deployment of additional renewable energy, playing an indispensable role in achieving U.S. clean energy goals and contributing to a sustainable future.

Source: https://www.morganlewis.com/pubs/2026/03/state-energy-storage-policy-trends-for-2026

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