Community Distributed Generation and Community Solar in New York

Community Distributed Generation (CDG) and community solar represent New York State's primary mechanisms for extending solar access to residents, businesses, and institutions that cannot host rooftop systems. Governed by the New York Public Service Commission (PSC) and administered through utility billing structures, these programs allow subscribers to receive bill credits from a shared off-site solar facility. This page covers the regulatory framework, program mechanics, classification distinctions, tradeoffs, and procedural steps relevant to CDG and community solar participation in New York.

Definition and Scope

Community Distributed Generation is a regulatory construct created under New York PSC Case 15-E-0082, which established rules for shared renewable energy facilities that serve multiple subscriber accounts through the existing utility grid. A CDG facility generates electricity at one location; the value of that generation is allocated as bill credits to subscribing customers, whose accounts must be located within the same utility service territory as the generating facility.

Community solar is the commercial and consumer-facing name for CDG projects marketed to residential and small-business subscribers. The terms are often used interchangeably, though "CDG" refers specifically to the PSC's regulatory category, while "community solar" is a broader market descriptor. Under PSC Order on Community Distributed Generation (2015), a CDG project may be up to 5 MW AC in capacity and must interconnect to the distribution system—not the transmission system—of one of New York's investor-owned utilities, including Con Edison, National Grid, Central Hudson, New York State Electric & Gas (NYSEG), Rochester Gas and Electric (RG&E), and Orange & Rockland.

This framework is distinct from rooftop net metering, which governs generation hosted at a subscriber's own premises. For a comparative overview of the broader solar landscape, see the New York Solar Energy Systems Conceptual Overview.

Core Mechanics or Structure

A CDG project operates as follows: a developer or utility constructs and interconnects a solar facility. Subscribers sign agreements—typically one-to-twenty-year terms—to receive a share of the facility's output, expressed either in kilowatt-hours (kWh) allocated or as a percentage of the facility's generation.

The utility calculates a monthly bill credit for each subscriber based on the energy attributed to their subscription share, multiplied by a credit rate. Under New York's Value of Distributed Energy Resources (VDER) tariff, the credit rate is not a flat retail rate but is instead calculated using the Value Stack, a multi-component formula that reflects energy value, capacity value, environmental value (linked to the NY-Sun program), demand reduction value, and locational system relief value. The Value Stack was established through PSC Case 15-E-0751.

Credits appear directly on the subscriber's utility bill, reducing the amount owed. If credits exceed the bill in a given month, the surplus carries forward to subsequent months. Subscribers continue to pay the utility for distribution service and other fixed charges—the credit offsets only the supply and related commodity components.

Facility interconnection follows the utility's standardized interconnection process, governed by the New York Standardized Interconnection Requirements (SIR) and reviewed through each utility's interconnection queue. The interconnection timeline for CDG projects typically spans 6–18 months depending on utility workload and any required system upgrades. More detail on that process is available at New York Solar Interconnection Timeline.

Causal Relationships or Drivers

Three structural conditions drove the creation and growth of CDG in New York.

Housing stock limitations. Approximately 45% of New York State households are renters (U.S. Census Bureau, 2020 American Community Survey), meaning they cannot install rooftop systems. CDG enables this population to participate in solar economics without property ownership or roof access.

Shading and structural constraints. Even owner-occupied structures face physical barriers—roof age, orientation, shading from adjacent buildings, or inadequate structural load capacity—that preclude on-site generation. The NY-Sun Megawatt Block program partially addresses this by incentivizing CDG build-out in underserved territories.

State policy mandates. New York's Climate Leadership and Community Protection Act (CLCPA), enacted in 2019, mandates 70% renewable electricity by 2030 and 100% zero-emission electricity by 2040. CDG expands the subscriber base for solar beyond single-family homeowners, accelerating deployment toward CLCPA targets. The intersection of CLCPA requirements with solar policy is examined further on the New York CLCPA and Solar page.

Equity requirements. PSC orders and NYSERDA programs require that a defined percentage of CDG capacity serve low-to-moderate income (LMI) subscribers. The NY-Sun Low-Income Community Solar program targets at minimum 20% of NY-Sun CDG incentive blocks for LMI participation, directly shaping project composition.

Classification Boundaries

Not all shared solar arrangements qualify as CDG under PSC rules. The following distinctions matter for regulatory treatment:

CDG vs. Rooftop Net Metering. Net metering under PSC Case 15-E-0751 applies to behind-the-meter systems at the subscriber's own service address. CDG is always off-site. Subscribers cannot receive both a net metering credit and a CDG credit for the same energy supply.

CDG vs. Remote Net Metering. Remote net metering allows a customer who owns a larger off-site system to credit generation to multiple accounts they own. CDG, by contrast, serves subscribers who do not own the generating facility. Remote net metering is generally limited to agricultural customers under PSC Case 12-E-0201.

CDG vs. Utility-Scale Solar. Projects exceeding 5 MW AC do not qualify as CDG under current PSC rules. They interconnect to the transmission system under NYISO (New York Independent System Operator) rules and are not eligible for the VDER Value Stack credit structure applicable to distribution-connected CDG.

Shared Rooftop Arrangements. A multi-tenant building with a shared rooftop solar system credits generation to the building owner or a master meter and redistributes value through building management—this is not CDG. It falls under specific PSC rules for multifamily solar arrangements.

Tradeoffs and Tensions

Credit rate uncertainty. The VDER Value Stack produces credit rates that fluctuate monthly based on utility avoided costs, wholesale energy prices, and locational factors. Unlike a fixed net metering retail rate, subscribers cannot predict their bill credit with certainty over multi-year subscription terms.

Subscriber lock-in vs. portability. Most subscription agreements run 20–25 years, with early termination fees. Some developers offer shorter terms or transfer provisions if a subscriber moves within the same utility territory, but portability across utility territories is not guaranteed and is subject to individual contract terms.

LMI access vs. project economics. Serving LMI subscribers—who may have lower average consumption and therefore smaller subscription shares—can reduce per-subscriber revenue for project developers. This tension is partially mitigated by NYSERDA incentive adders for LMI-serving projects under the NY-Sun program, but not fully resolved.

Grid hosting capacity. CDG projects in constrained utility circuits may require expensive system upgrades, costs that are either borne by the developer, shared among projects in an upgrade zone, or passed through in ways that affect project economics and development timelines.

The broader regulatory context shaping these tensions is detailed in the Regulatory Context for New York Solar Energy Systems.

Common Misconceptions

Misconception: Subscribers receive physical electricity from the CDG project.
Correction: Electricity flows through the grid as a commingled resource. Subscribers receive a financial bill credit representing the value of their allocated share of generation—not dedicated electrons from the solar facility.

Misconception: CDG participation requires rooftop installation or permits at the subscriber's home.
Correction: CDG subscriptions involve no on-site equipment installation. The solar facility is permitted and inspected at the project site under applicable local land-use and building codes, not at the subscriber's address.

Misconception: CDG is free or eliminates the utility bill.
Correction: Subscribers pay the project developer or operator a subscription fee, which is typically set at a discount of 5–15% below the value of the credits received—a designed saving, not elimination of cost. Fixed utility charges, distribution tariffs, and other non-supply line items remain on the subscriber's bill regardless of CDG credits.

Misconception: Any New York resident can subscribe to any CDG project in the state.
Correction: Subscribers must be within the same utility service territory as the CDG facility. A Con Edison customer cannot subscribe to a CDG project interconnected to National Grid, and vice versa.

Misconception: CDG credits and net metering credits are interchangeable.
Correction: They operate under distinct tariff structures. VDER Value Stack credits (applicable to most CDG projects since 2020) are calculated differently from legacy net metering retail credits and may produce different monthly bill values. For a full explanation of net metering policy, see New York Net Metering Policy.

Checklist or Steps

The following steps represent the sequence of phases that characterize CDG project development and subscriber enrollment in New York. This is a structural description of the process, not professional guidance.

CDG Project Development Phases

  1. Site identification and feasibility — Identify a parcel within a target utility service territory with adequate solar resource, grid proximity, and land-use compatibility.
  2. Utility interconnection application — Submit an application under the New York Standardized Interconnection Requirements (SIR) to the relevant utility. Pay the application fee and await queue position assignment.
  3. Feasibility and facilities study — The utility conducts studies (typically taking 3–9 months) to determine grid impact and required upgrades.
  4. Interconnection agreement execution — Upon study completion and cost agreement, execute the interconnection agreement with the utility.
  5. Local permitting and zoning — Obtain local building permits, zoning approvals, and any required environmental review under the State Environmental Quality Review Act (SEQRA).
  6. NYSERDA incentive application — Apply for NY-Sun Megawatt Block incentives through NYSERDA's online portal. Application timing relative to construction affects incentive eligibility.
  7. Construction and inspection — Build the facility to design specifications; pass utility witness testing and local inspection.
  8. Utility billing enrollment setup — Provide the utility with subscriber account lists and allocation percentages for VDER billing setup.
  9. Subscriber agreements executed — Subscribers sign contracts defining subscription size, credit methodology, term length, and termination conditions.
  10. Commercial operation and monthly billing — The facility produces generation; the utility calculates and applies monthly VDER credits to each subscriber's account.

Reference Table or Matrix

Feature CDG / Community Solar Rooftop Net Metering Remote Net Metering Utility-Scale Solar
Facility location Off-site (remote) On-site (subscriber's premises) Off-site (customer-owned) Off-site
Subscriber owns facility? No Yes Yes No
Max facility size (PSC rules) 5 MW AC 25 kW–2 MW AC (by customer class) 500 kW AC (agricultural) >5 MW AC (NYISO jurisdiction)
Credit mechanism VDER Value Stack Net metering retail credit Net metering retail credit Wholesale energy markets
On-site permitting required at subscriber address? No Yes No No
LMI participation requirements Yes (NY-Sun adders) No No Separate CCA programs
Applicable PSC case 15-E-0082; 15-E-0751 15-E-0751 12-E-0201 NYISO tariffs
Subscription term typical length 20–25 years System lifetime (~25 years) N/A (customer-owned) N/A
Utility territory restriction Yes N/A (same address) Yes No (NYISO statewide)

For additional comparison of solar system types available to New York residents and businesses, see the New York Solar Energy Systems home resource.

Scope and Coverage Limitations

This page covers CDG and community solar as defined and regulated by the New York Public Service Commission within the jurisdiction of New York State's investor-owned utilities: Con Edison, National Grid, Central Hudson, NYSEG, RG&E, and Orange & Rockland. Coverage does not extend to:

References

📜 4 regulatory citations referenced  ·  🔍 Monitored by ANA Regulatory Watch  ·  View update log

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