DER Aggregation Insights
DER Aggregation Insights
Technical and regulatory perspectives on ISO capacity markets, community solar program operations, and behind-the-meter asset aggregation.
FERC Order 2222: What Community Solar Operators Need to Know
FERC Order 2222 opened wholesale markets to aggregated DERs. Here is what that means for operators running community solar programs and how ISO rules translate into real capacity revenue.
PJM Capacity Market Primer for DER Aggregators
PJM's capacity auction (BRA and RPM) determines whether your aggregated DER portfolio qualifies as a capacity resource. We walk through the interconnection queue, ICAP requirements, and what documentation a new DER aggregator must prepare.
Behind-the-Meter Solar and Storage Aggregation: The Technical Fundamentals
Aggregating behind-the-meter assets requires solving for heterogeneous inverter protocols, subscriber metering data latency, and dispatch co-optimization. This post covers the architecture fundamentals.
From Subscriber Accounts to ISO Recognition: The VPP Pathway
Achieving ISO-recognized status for a virtual power plant is a multi-step process covering metering, telemetry, dispatch testing, and settlement. We outline the pathway for community solar operators new to wholesale markets.
The Subscriber Data Latency Challenge in Community Solar VPPs
Community solar programs aggregate assets spread across thousands of subscribers with varying meter read intervals. Managing data latency while meeting ISO dispatch telemetry requirements is the core technical challenge we built Nexwatt to solve.
ISO-NE vs NYISO DER Aggregation Rules: A Side-by-Side Comparison
ISO-NE and NYISO have each filed their FERC Order 2222 compliance tariffs with materially different requirements for DER aggregators. We compare minimum aggregation sizes, telemetry standards, and capacity qualification timelines.
Load Flexibility as a Revenue Stream for Community Solar Operators
Community solar programs manage load as well as generation. Demand response and load flexibility programs can add a second revenue stream alongside capacity payments.
Capacity Resource Qualification: A Documentation Checklist for Operators
Qualifying your DER portfolio as a capacity resource requires assembling metering records, interconnection agreements, and dispatch test results in ISO-specified formats. This checklist walks operators through each requirement.
How Subscriber Churn Affects VPP Capacity Commitments
When subscribers leave a community solar program, the aggregated capacity resource shrinks. We analyze how to size capacity commitments accounting for typical subscriber attrition rates.
DC Clean Energy Policy Context for Community Solar Operators in 2025
Washington DC's Renewable Portfolio Standard and community solar legislation shape the market for aggregated DER programs in the PJM zone. We review the 2025 policy landscape.
Dispatch Optimization for Behind-the-Meter Battery Storage in Community Solar Programs
Battery storage paired with community solar adds dispatch flexibility but requires co-optimization of self-consumption, grid services, and capacity commitments.
DER Aggregation Outlook for Community Solar Operators: What to Expect in 2026
ISO compliance tariffs are maturing, FERC Order 2222 case law is accumulating, and community solar program developers are now taking ISO capacity markets seriously. Our outlook heading into 2026.
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New articles on ISO capacity markets, FERC regulatory updates, and community solar operations — roughly every 2–4 weeks.