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GET
Get NYISO interconnection queue data

Overview

The NYISO interconnection queue endpoint provides access to real-time data from the New York Independent System Operator (NYISO) interconnection queue. NYISO serves all of New York State.
NYISO Coverage: Contains 400+ projects across New York State. Top technologies: Solar (150+ projects), Wind (100+ projects), Battery Storage (80+ projects), Natural Gas (70+ projects).

Endpoint

Coverage Area

State Served: New York (entire state)

Query Parameters

Technology Distribution

Status Options

NYISO Load Zones

Example Requests

Filters for projects developed by Ørsted (offshore wind). Uses partial matching to find all Ørsted projects. Note: Ørsted is stored as Orsted in the database.

Response Schema

Complete Upstream Data: Each project includes all 38 database columns from NYISO’s interconnection queue at the top level. This provides complete transparency with both standardized fields (normalized across all ISOs) and NYISO-specific raw fields like queue_pos, energy_storage_capability, and minimum_duration_full_discharge.

Response Fields

Core Identification

Capacity & Technology

Energy Storage Fields

Project Status & Dates

Location

Study Process & Interconnection

Grid Connection

Developer Information

Data Updates: NYISO queue data is updated based on NYISO’s interconnection queue reports.
Field Availability: Some fields like energy_storage_capability and affected_transmission_owner_ato are typically null in NYISO data. The minimum_duration_full_discharge field is only populated for battery storage projects.

NYISO Queue Terminology

Load Zones (A-K)

NYISO divides New York State into 11 geographic load zones that reflect transmission constraints and local electricity market conditions. Each zone represents a specific region with distinct pricing and capacity characteristics.

Study Process Phases

NYISO projects progress through a multi-phase study process to assess technical feasibility and interconnection costs. FES (Feasibility Study): Initial technical and cost assessment to identify major system impacts and preliminary cost estimates. SRIS (System Reliability Impact Study): Detailed reliability analysis to determine required network upgrades for system reliability. This is the standard study path for most projects. SIS (System Impact Study): Alternative streamlined study path available for smaller projects with minimal system impact. FS (Facilities Study): Final engineering and cost estimates for required interconnection facilities and network upgrades.

Queue Positions

Projects are assigned numeric queue positions (e.g., “0495”, “0522”, “1721”) when their interconnection request application is accepted as complete by NYISO. Lower numbers indicate earlier queue entry.

Status Types

Planned: Active projects progressing through studies or awaiting construction. Includes statuses like “SRIS/SIS in Progress”, “IA Completed”, and “Accepted Cost Allocation”. Operating: Projects that have achieved commercial operation, marked as “In Service Commercial” in NYISO data. Cancelled: Projects withdrawn from the queue, with withdrawal dates tracked for historical reference.

Technology Codes

NYISO uses single-letter or two-letter codes for technology types: “S” (Solar), “ES” (Energy Storage), “NG” (Natural Gas), “W” (Wind), “F” (Flywheel), “DC” (DC Transmission), “AC” (AC Transmission), “L” (Load/Data Center).

Storage Duration

For battery storage projects, the minimum_duration_full_discharge field indicates how many hours the system can discharge at full rated capacity. Common values are “2.0”, “4.0”, or “8.0” hours.

Authorizations

x-api-key
string
header
required

API key authentication using x-api-key header

Query Parameters

limit
integer
default:50

Number of records to return

Required range: 50 <= x <= 5000
offset
integer
default:0

Number of records to skip

state
string

Filter by state code (NY)

technology
string

Filter by technology type

min_capacity
number

Minimum capacity in MW

max_capacity
number

Maximum capacity in MW

Response

Successful response with NYISO interconnection queue data

iso
string
Example:

"NYISO"

summary
object

Summary metadata for pagination

filters
object

Applied filters for the request

data
object[]

Array of interconnection queue records