Interconnection with the Grid
Interconnection is the physical connection of two electric systems that allows for the sale or exchange of electricity. A renewable energy facility that is not an isolated or stand-alone system must be interconnected to the electricity grid. The generation capacity of the facility generally determines whether it is most appropriate for the facility to be interconnected into an electric service provider’s transmission or distribution system.
Once the generation capacity is determined, the next step after developing a project concept for any owner or developer of a potential renewable energy project should be to contact the utility to which the project will be interconnected to determine what the requirements will be.
In North Carolina, regulated utilities such as Duke Energy, Progress Energy, and Dominion North Carolina Power are required to offer a standard interconnection agreement.
The capacity size of the proposed renewable energy project generally determines the interconnection process that the owner or developer will need to navigate. The three possible interconnection processes covered within the standard agreement are summarized in the following table.
|Summarizing the NC Standard Interconnection Process|
|Renewable Energy Facility Capacity||Interconnection Process|
|≤ 10 kW certified inverter-based generating facility||10 kW Inverter Process - Section 2 of standard agreement|
|≤ 2 MW certified generating facility||Fast Track Process – Section 3 of standard agreement|
|> 2 MW or facility does not pass other two above categories||Study Process – Section 4 of standard agreement|
The details of the Commission proceeding on the standard interconnection agreement can be found on the Commission’s website (NCUC Docket No. E-100, Sub 101).
Utility-specific resources can be found by visiting the individual utility’s website.
Other Electric Service Providers
The other electric service providers operating within North Carolina are at various stages with the development of their interconnection agreements. Some providers have a standard agreement and others are in the process of developing an agreement. The requirements of the existing agreements may vary significantly from the standard interconnection agreement offered by the regulated utilities. In the event that a service provider does not currently have an interconnection agreement, the renewable energy developer may need to work with the provider to get an agreement in place.
At this time, NCSEA is aware of at least seven EMCs offering standard interconnection agreements.
- »Save the Date: Forum on Solar Development & Siting in North Carolina
- »Cleantech Open Launces Accelerator for Cleantech Startups
- »REGULATORY UPDATE
- »Legislative Dash Deals Setback for Energy Conservation Codes
- »LEGISLATIVE UPDATE
- »2013 Making Energy Work Conference: Sept 19-20
- »Abundant Power Helps Deliver Energy Savings to Alabama
- »REPS Repeal Bill Pushed Through Senate Finance Committee
- »Governor McCrory Nominates New Utilities Commission Members
- »REPS Repeal Bill Falters and Fails, but Hager Drags it Back
- »Google Partners with Duke on New Renewable Energy Tariff
- »Two NCSEA Staffers Honored with Awards
- »NCSEA Thanks NCGA Members for Voting No on H298
- »NCSEA Reaction to Google's Clean Energy Announcement
- »Healthcare Goes Solar
- »NC Supreme Court Reverses Commission Order on Duke Energy Carolinas Rate Case; Sends It Back with Questions
- »Cleantech Open Expands Accelerator into Research Triangle Park : Applications Due May 1
- »Report: North Carolina No. 2 in Country for Clean Energy, Clean Transportation Jobs in 2012
- »NC Sustainable Energy Association's 2013 Making Energy Work Conference
- »Forum on Solar Development & Siting in North Carolina
- »Distributed Wind Energy
- »Southeastern Association of Regulatory Utility Commissioners (SEARUC) 2013 Annual Conference
- »The 3rd World Smart Grid Conference India Week
- »2013 NC Wood Exports Conference
- »2012 NC Clean Energy Industries Census
- »NC Legislative Guide 2012
- »A Citizen's Guide: North Carolina Renewable Energy & Energy Efficiency Portfolio Standard
- »Levelized Cost of Solar Photovoltaics in North Carolina 2012
- »Annual Report 2010-2011
- »Understanding the Impact of Electric Generation Choices on North Carolina Electricity Rates
- »2011 NC Renewable Energy & Energy Efficiency Industries Census