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PV INTERCONNECTION

Solar Interconnection Applications

Interconnection issues with the utility company can delay PV installations and increase costs.
Numerous solar contractors and developers are accelerating their solar workflow with the
Solar Plan Design solar interconnection application service.

What does a utility interconnection application include?

  • Solar interconnection drawings for the application
  • Application manager to steer interconnection approval

Turnaround time: 1 to 2 business days Available in: All 50 states

Accelerate Your Interconnection Approval Process With Solar Plan Design

Utility interconnection delays can cost you time, money, and customer satisfaction. The Solar Plan Design network of solar designers and engineers is skilled in preparing quality solar interconnection applications that comply with the National Electrical Code (NEC) requirements.

Solar Engineering Stamps for PV Permit Drawings

There are around 3,000 electric utilities in the United States, many with their own specific rules and processes for interconnection. With affordable flat fees and no hourly charges, many solar contractors rely on Solar Plan Design for all their utility interconnections.
Our partners are specialized in solar permitting and grid interconnection issues and our internal Solar Plan Design team is ready to provide e-mail, phone, and chat support to help you through it all.

Solar Interconnection Application Service

Contact us to get in touch with an account manager and get started on the Solar Plan Design marketplace. Our team will help you find the best solar design, engineering, and interconnection service partner to fulfill your solar power and energy storage needs.

Solar Plan Design Solar Design & Engineering Services

SOLAR PERMIT DESIGN

PV plan sets for residential and commercial permit applications

SOLAR ENGINEERING

PE stamps and reviews available in all 50 states

SOLAR ENERGY FIELD SERVICES

PV installations, maintenance, repairs, and PTO remediation

FAQs ABOUT SOLAR INTERCONNECTION

Solar energy engineering involves designing, developing, and managing systems that harness solar power for various applications, such as electricity generation, space heating, water heating, and lighting. Engineers in this field focus on optimizing solar technologies, including photovoltaic systems and solar thermal devices, to harness renewable energy from the sun.
Many jurisdictions require licensed PE seals to obtain permits for a variety of projects, including architectural and structural drawings, mechanical and electrical plans, civil engineering designs, and environmental engineering reports. Many AHJs require engineering drawing stamps on solar plan sets to obtain permits. There are two primary types of PE stamps required for solar energy systems: an electrical engineering stamp and a structural engineering stamp.
The engineer’s stamp or seal is a formal indication that the drawings comply with relevant engineering standards and codes. It signifies that the engineer takes responsibility for the accuracy and safety of the design. Solar engineering stamps provide assurance to authorities, inspectors, and stakeholders that a licensed professional engineer has reviewed and approved the solar permit design.
Professional engineers are regulated individually by each state in the United States by a licensing board. A license or registration obtained is applicable only within the state where it is issued. However, some engineers may hold licenses in multiple states to broaden their professional scope.
Greenlancer’s network of solar engineering companies is available in all 50 states, including Arizona, California, Colorado, Florida, Illinois, Massachusetts, North Carolina, and Texas. Join the GreenLancer platform for free to shop our solar design engineering services.

The term “Authority to Interconnect” (ATI) in the solar power industry refers to the formal permission from the the electricity utility or grid operator to connect a solar PV system to the electrical grid. Interconnection is a crucial step in the process of integrating solar panels or other distributed energy resources into the existing electrical infrastructure.

Key points related to solar interconnection include:

Grid Connection Permission: The ATI is the authorization that allows a solar power system to be connected to the electrical grid. It signifies that the system meets the necessary technical and safety requirements.

Compliance with Standards: Obtaining ATI involves demonstrating that the solar installation complies with relevant industry standards, safety protocols, and interconnection guidelines.

Coordination with Utility: The process often involves coordination with the local utility company. This includes submitting necessary documentation, engineering studies, and ensuring that the solar system will operate safely and reliably within the existing grid infrastructure.

Bi-Directional Energy Flow: Interconnection allows for the bidirectional flow of electricity. Solar energy systems can feed excess electricity back into the grid, and the system can draw power from the grid when solar energy output is insufficient.

Net Metering and Billing: With an ATI in place, homeowners or businesses can often take advantage of net metering programs, where they receive credit for excess energy fed back into the grid and may be billed only for their net electricity consumption.

It’s important for individuals or businesses installing solar systems to work closely with their local utility and follow the established procedures for obtaining Authority to Interconnect. The process may vary by location and utility company, and compliance with interconnection requirements ensures the safe and efficient integration of solar power into the larger electricity grid.

Our team of solar interconnection specialists has extensive experience gaining authority to interconnect (ATI) approval from a variety of utility companies nationwide. We’ve worked with large investor-owned utility companies, small rural electric coops, and everything in between, including PG&E, Southern California Edison, Florida Power & Light, Georgia Power, Dominion Energy, DTE Energy, Duke Energy, Consumers Energy, Xcel Energy, and ComEd.
Gaining solar interconnection approval typically takes anywhere from a couple of weeks to several months. In some cases, it might take longer if there are regulatory or technical challenges that need to be addressed, such as a transformer upgrade. It’s important to follow established PV interconnection guidelines and ensure that all required solar installation documentation is submitted accurately and promptly to help expedite the interconnection process.
Gaining solar interconnection approval typically takes anywhere from a couple of weeks to several months. In some cases, it might take longer if there are regulatory or technical challenges that need to be addressed, such as a transformer upgrade. It’s important to follow established PV interconnection guidelines and ensure that all required solar installation documentation is submitted accurately and promptly to help expedite the interconnection process.
PTO is a document or certification issued by the relevant authorities or utility companies indicating that a solar energy system has met all the necessary requirements and is allowed to operate. Before a solar project can start generating electricity and feeding it into the power grid, it needs to go through a series of approvals and inspections to ensure compliance with safety, technical, and regulatory standards. Solar PTO is essentially a green light, stating that the solar installation is permitted and operates properly.
PG&E (Pacific Gas and Electric Company) is a utility company that provides natural gas and electric services in Northern and Central California. PG&E has an interconnection application process for residential and commercial solar system owners looking to connect to the PG&E electrical grid. Obtaining interconnection permission involves submitting an application with diagrams and agreeing to an interconnection agreement.
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