About the Plan
Background & IRP Objectives
The 2027 IRP is being developed against the backdrop of converging pressures reshaping the energy landscape. PSEG Long Island, in collaboration with LIPA, will evaluate tradeoffs across cost, reliability, and environmental goals.
What is an IRP?
A comprehensive, forward-looking strategy for Long Island's energy future.
An Integrated Resource Plan (IRP) evaluates how LIPA will meet future energy needs reliably, affordably, and sustainably. Decisions on generation and transmission are long-term commitments representing significant financial investment — currently, half of every electric bill represents the cost to buy or generate electricity.
The 2027 IRP process begins in May 2026 and concludes in summer 2027, covering a 13-year planning horizon (2027–2039). An IRP is typically conducted every 3–5 years.
Converging pressures
Three forces reshaping the energy landscape.
Reliability Risks
Growing system load
Large loads and electrification continue to reduce supply margin across the system.
Intermittent renewables
Demonstrated intermittency of renewable resources requires firm, dispatchable generation to maintain reliability.
Aging generation
Long Island's existing on-island generation requires higher maintenance costs to maintain performance.
Supply chain constraints
Extended lead times for generation and transmission equipment have stretched delivery timelines.
Policy & Regulatory Challenges
Permitting & lease cancellations
Permitting and zoning restrictions and the elimination of off-shore wind lease areas have slowed development of clean resources.
Tighter NYISO criteria
Tightening of NYISO planning criteria is increasing on-Island capacity requirements.
Economic Challenges
Federal tax incentive rollbacks
Recent rollbacks in federal tax incentives for EVs, solar, and wind projects have materially changed project economics.
Higher construction costs
Higher material and construction costs have caused project cancellations and an overall increase in power supply costs.
Constrained neighbors
Neighboring regions are capacity constrained and supply from off-Island sources is becoming more expensive.
Core objectives
Four objectives guiding the 2027 IRP.
Balance supply & demand
Evaluate future energy needs and identify the optimal mix of resources to meet them across a 13-year horizon (2027–2039).
Consider all resource options
Evaluate traditional generation, renewables, battery storage, energy efficiency, and demand response under multiple futures.
Minimize cost impact
Within each scenario, seek to minimize costs for customers while maintaining system reliability.
Facilitate emissions reductions
Identify actions that reduce the total carbon footprint of the grid, consistent with state climate goals.