IEDR | New York State's Integrated Energy Data Resource

Understanding the Electric Infrastructure Assessment Tool

The Electric Infrastructure Assessment Tool (EIAT) is designed to enable users to explore detailed energy-related datasets across New York State (NYS). The map provides access to environmental, community, and property data with a goal of helping users find feasible sites for solar, battery energy storage station, and EV charging station development. By identifying sites more quickly, viewing related permitting environmental characteristics of those sites, and seeing other planned distributed energy resource (DER) projects, EIAT users can deploy available capital more quickly, improve interconnection times, and increase the amount of clean energy available to NYS electricity customers.

The data within the EIAT is classified as Public and sourced from various utility data deposits and 3rd party locations.

Utility Sourced Data Sets

Installed and Planned DERs

DERs are critical to the state's Climate Leadership and Community Protection Act.

DER data contained within the EIAT is sourced monthly from all participating NYS distribution utilities and contains assets of 5 megawatts or less connected in parallel with utility distribution systems. This is in alignment with the NYS Standardized Interconnection Requirements (SIR) (opens in new window) inventory information.

Types of DER assets contained in the tool include:

  • Solar Photovoltaic (PV) Systems
  • Energy Storage System
  • Wind
  • Microturbines
  • Synchronous Generators
  • Induction Generators
  • Farm Waste
  • Fuel Cells
  • Combined Heat and Power Systems
  • Gas Turbines
  • Hydro Systems
  • Internal Combustion Engines
  • Steam Turbines
  • Other Hybrid Combinations

Due to the data sensitivity of early-stage projects, only projects that have matured to the SIR Application Approved Milestone are accessible through the IEDR. Also, due to the lack of a consistent taxonomy for DER status across utilities in NYS, the IEDR has homogenized DER status as described in the table below.

DER Milestone DER Status Mapping Rule to SIR Report Notes
Application Reviewed Not Applicable Application Review End Date exists These projects are not yet considered “In Queue” until the application is approved. Additional records like these applications sent back to developers as incomplete are also not available within the IEDR.
Application Approved Planned Application Approved Date (Utility) exists This signals when the application enters the queue
Preliminary Review Complete Planned Preliminary Review End Date exists
Coordinated Electric System Interconnection Review (CESIR) in Progress Planned CESIR Start Date
Coordinated Electric System Interconnection Review (CESIR) Completed Planned CESIR End Date This is the last step utilities are aware of before the project is completed or canceled. Developers rarely report construction start date to utilities.
Construction Planned Construction Start Date Developers rarely tell utilities when construction begins. Not all projects require construction. Sometimes this milestone can be inferred based on payments made. This milestone code will often be blank.
Project Complete Installed Final Acceptance Date This signals that utilities accept the witness test. Permission to operate is granted.
Canceled Canceled Based on status. No date fields. Canceled projects are not included in planned DER counts.

Photovoltaic (PV) Hosting Capacity

PV hosting capacity is an estimate of the amount of solar generation that may be accommodated without adversely impacting power quality or reliability under current configurations and without requiring infrastructure upgrades. The provided data on PV hosting capacity is for information purposes only and is not intended to be a substitute for the established interconnection process.

The segment-level PV Hosting Capacity map is color-coded based on the maximum Hosting Capacity calculated for the segment and shown on the segment tooltip. Similarly, the feeder-level PV Hosting Capacity map is color-coded based on the maximum Hosting Capacity calculated for the feeder and shown on the feeder tooltip. Where the feeder-level HC data is not available, the EIAT will display the maximum value of all maximum HCs across its respective segments as an approximation of the maximum feeder-level HC and display the minimum of all minimum HCs across its respective segments as an approximation of minimum feeder-level HC.

The analysis used to create this data reflects the available feeder- and/or subfeeder-level hosting capacity for PV interconnections larger than 300 kilowatts. Note that as of December 1, 2023, the PV hosting capacity data is refreshed every 6 or 12 months depending on timing of utilities implementing Stage 4.1 of the hosting capacity roadmap, whereas the interconnection queue data (planned DER and installed DER) is updated on a monthly basis.

This analysis was conducted under current configurations, without installed DERs and prior to infrastructure upgrades such as installing a recloser or remote terminal unit at the point of common coupling; replacing a voltage-regulating device or controller to allow for reverse flow; substation-related upgrades, including 3V0 protection; or other protection-related upgrades. The IEDR does not calculate hosting capacity values. This data is delivered to the IEDR by each participating NYS utility.

Data within the IEDR is not a guarantee that generators can interconnect at any particular time and place. A number of factors drive the ability and cost of interconnecting distributed generation to the electric system, and actual interconnection requirements and costs will be determined following detailed studies. These studies will consider specific project location, operating characteristics, and timing. Additionally, environmental and other required permits are independent of the interconnection process and may limit the suitability of a particular site.

For more information on hosting capacity maps, methodologies and assumptions, and individual utility disclaimers, please visit the Joint Utilities of NY Hosting Capacity webpage (opens in new window) .

Energy Storage System (ESS) Hosting Capacity

The provided ESS Hosting Capacity layer is for information purposes only and is not intended to be a substitute for the established interconnection process. The analyses provide feeder- and/or subfeeder-level energy storage hosting capacity for the distribution circuits evaluated. Hosting capacity for energy storage is an estimate of the amount of charging and discharging that may be accommodated without adversely impacting power quality or reliability under current configurations and without requiring infrastructure upgrades.

Note that this analysis was conducted under current configurations, prior to infrastructure upgrades such as installing a recloser or remote terminal unit at the point of common coupling; replacing a voltage-regulating device or controller to allow for reverse flow; substation-related upgrades, including 3V0 protection; or other protection-related upgrades.

The discharging (generation) heat map breakpoints and colors mimic the PV hosting capacity map criteria. The charging (load) heat map breakpoints and colors are unique to the ESS hosting capacity map. The heat map for each section or feeder is a visual representation of the tooltip field "Max ESS Charging Hosting Capacity".

EV Load Capacity

This refers to the amount of electric power that can be supplied to EVs without overloading the grid. The EIAT map shows EV load capacity data that helps users decide where to site EV charging stations.

The EV Load Capacity layer provides the remaining available load capacity for the distribution circuits evaluated. It is an estimate of the remaining circuit and substation load capacity to help guide EV charging station developers to areas where electric vehicle supply equipment (EVSE) can likely interconnect with minimal need for system reinforcement. Please note that this analysis was conducted under current configurations, prior to any planned infrastructure upgrades such as reconductoring.

The EV load capacity analysis does not account for all factors, such as other planned loads, that could impact EVSE interconnection costs. The analysis accounts for the most limited rating at the feeder head and does not account for any smaller rated equipment downstream of the feeder head (that is, step-down ratios or smaller conductors). This layer is being provided for informational purposes only and is not intended to be a substitute for the customer application process.

Data Limitations

As of August 8, 2024, limitations in data made available through the IEDR platform by utility service territory include:

  • One- and two-phase distribution line models
  • Specific substation location (lat/lon) is not provided as some utilities consider this sensitive critical electric infrastructure information (CEII), and CEII is not available through the IEDR. Future Commission rulings may change this decision. As a workaround, electrical distance to substation is accessible on the “Feeder Segment” tooltip for Central Hudson, Con Edison, and Orange and Rockland Utilities. To help obscure substation locations, segments within a half mile of a substation are filtered out.
  • Due to the sensitivity of specific DER locations, the DERs in the EIAT are aggregated and mapped by using the centroid of the connected feeders. More on this can be found in the EIAT User Guide (opens in new window) .
  • Cost share 2.0 data available on feeder dashboard only covers utility-initiated DG/ESS upgrades.
  • Cost share 2.0 data available on feeder dashboard only covers utility-initiated DG/ESS upgrades.

Avangrid (New York State Electric and Gas & Rochester Gas and Electric)

  • Cost Share 2.0 data
  • Substation data, including NYISO transmission node data, is not available for the entire Avangrid system

Central Hudson

  • Feeder Hosting Capacity values are not an official hosting capacity calculation. They are derived as a max() function applied across the feeder's segment-level hosting capacity values.

ConEd (including Orange and Rockland Utilities)

  • Specifically for Con Edison network areas: Hosting capacity for the Network Structures layer will present hosting capacity values for the various points of interconnection within the secondary grid. These points of interconnection represent the most limiting characteristics in calculations and, for this reason, may not directly correspond to the larger network values. The value given represents the maximum amount of hosting capacity available at each point before a project may incur system upgrade costs. These calculations are site specific and could be affected if neighboring interconnection points become interconnected (see additional distributed generation [DG])
  • ESS hosting capacity is only available for non-network feeders
  • Cost Share 2.0 data

Long Island Power Authority

  • EV loading capacity data
  • ESS hosting capacity data
  • Substation distance data (deemed as sensitive information)
  • New York Independent System Operator node data (deemed as sensitive information)
  • Cost share 2.0 dat
  • Nodal hosting capacity analysis data
  • DG approvalinterconnection dates data
  • DG payment dates data
  • Feeder hosting capacity values are not an official hosting capacity calculation; they are derived as a max() function applied across the feeder's segment-level hosting capacity values