Winter Scarcity Prep for ISO-NE and PJM: How to Maximize Performance

Winter brings special challenges and opportunities for battery energy storage systems (BESS) in the ISO-NE and PJM markets. Price volatility driven by consumer demand, cold weather constraints, and natural gas dependency means asset owners must optimize their operating strategies. For BESS developers and asset owners, winter is an opportunity to earn revenue by participating in the market while managing the risks of higher costs and reduced system flexibility. This article examines the challenges of winter in these markets, the 2024/2025 winter outlook for ISO-NE and PJM, and how to reduce risk, increase profit, and leverage SYSO’s expertise for success.

Winter brings higher demand for electricity in some regions as heating needs surge across residential, commercial, and industrial sectors. This increased demand often leads to tight supply constraints. Furthermore, the ISO-NE and PJM’s reliance on natural gas for power generation tends to amplify the problem as natural gas used for heating also faces supply constraints. This can drive up prices and reduce the availability of gas used for electricity generation.

For BESS owners, this means both opportunities and risks. Price spikes in the real-time energy market present substantial arbitrage opportunities, while price volatility can require charging during high-cost periods, eroding potential profits. Furthermore, ancillary service markets, such as frequency regulation and spinning reserves, become less predictable as system operators prioritize reliability over market flexibility.

Complying with ISO dispatch orders becomes even more important during winter scarcity events. Batteries need to respond to market signals while keeping operational health, adding complexity to state of charge (SOC) management and market participation.

ISO New England expects to have enough power and reserve margin for normal winter conditions, but challenges still remain under extreme weather scenarios. The system is heavily dependent on natural gas and has limited fuel reserves, which can lead to price volatility and generation curtailment during prolonged cold snaps.

In its 2024/2025 Winter outlook ISO-NE stresses the need for demand response, energy storage, and dual-fuel capabilities to keep the system reliable. BESS assets, with their fast response capabilities, are well suited to support the grid during tight supply periods by participating in ancillary service markets and peak shaving. However, the outlook also highlights the need for precise state-of-charge management to avoid penalties for not meeting market commitments during peak demand periods.

PJM 2024/2025 Winter Outlook

PJM expects to have enough generation to meet 2024/2025 winter demand even under colder-than-normal conditions. However, the market’s dependence on gas-fired generation means there are risks, especially during extreme cold snaps when gas supply is diverted to meet heating demand. Price volatility in PJM is expected to increase in real-time markets as demand fluctuates with the weather.

For BESS owners, PJM’s capacity and ancillary services markets are still attractive revenue streams. However, navigating price swings in the energy market requires a proactive approach to ensure assets are dispatched during peak price periods and not charged during high-cost intervals. PJM’s performance-based regulation market offers additional opportunities for batteries to earn revenue by providing system stabilization services.

Navigating winter price volatility requires proactive strategies to mitigate risks and protect storage assets from revenue losses. By focusing on precise state-of-charge management, real-time market monitoring, and leveraging ancillary services, asset owners can safeguard operations and optimize performance. Let’s explore some common strategies to reduce risk this winter:

Advanced SOC Management: Keeping SOC optimal is critical to avoiding charging during peak price periods and being available for high-value market opportunities. Predictive algorithms can help balance SOC with market signals.

Ancillary Services: Ancillary services like frequency regulation and spinning reserves offer steady revenue streams that are less exposed to energy market volatility. Batteries can position themselves as reliable providers in these markets.

Real-Time Market Monitoring: Continuous monitoring of market conditions allows asset owners to adjust operations in real-time, avoid penalties for non-compliance, and capture revenue during scarcity events.

Weather and Demand Forecasting: Using weather and demand forecasting tools allows assets to anticipate grid stress events and adjust asset operations and market participation strategies.

Profit Maximization Strategies

To fully capitalize on winter market dynamics, battery storage owners must implement strategies that enhance revenue opportunities. By optimizing energy arbitrage, participating in high-value ancillary services, and aligning operations with peak demand periods, asset owners can significantly boost profitability. Here are some ways to increase profits this coming winter:

Energy Arbitrage: BESS assets can earn revenue by charging during off-peak, low-cost periods and discharging during peak, high-price intervals. Accurate market forecasting and real-time data analysis are key to maximizing arbitrage.

Revenue Stacking: By participating in multiple markets at the same time, such as energy, capacity, and ancillary services, batteries can diversify revenue streams and increase overall profitability. Proper allocation of the resources between these markets is key to maximizing returns.

Capacity Markets: In PJM, BESS assets can receive capacity payments through the Base Residual Auction (BRA). These payments provide a predictable revenue and incentivize availability during peak demand periods. Recently, PJM capacity prices increased dramatically, offering more opportunities in this market.

Performance-Based Regulation: Batteries with fast response capabilities can earn performance-based incentives in frequency regulation markets where precision and speed are highly valued.

SYSO’s battery storage expertise ensures clients can navigate winter scarcity events with ease. SYSO’s 24/7 Network Operations Center (NOC) provides real-time market monitoring, dynamic dispatch optimization, and data-driven SOC management to maximize revenue and minimize risk.

SYSO’s revenue stacking strategies position assets to capture value across multiple markets, such as energy, capacity, and ancillary services. With advanced forecasting tools and market insights, SYSO helps clients anticipate grid stress events and align operations with market conditions.

Compliance and regulatory support are also part of SYSO’s approach. By managing market registration, performance audits, and dispatch compliance, SYSO ensures assets are fully compliant and avoid penalties during the most challenging winter periods.

Learn More About Our BESS Optimization Solutions

Winter in ISO-NE and PJM is a challenge and an opportunity for BESS owners. By using advanced risk mitigation and profit maximization strategies, BESS assets can succeed and mitigate price risk. SYSO’s real-time market operations, revenue optimization, and regulatory compliance expertise make us the perfect partner to navigate this season. Contact our team today to learn how we can help you optimize your asset’s performance and profitability this winter.