G98 Grid Connection Automated Form Generator for Solar Installers: 15 Second Automation Application Process

Submit a G98 in seconds
No human-error or mistakes
Get your evenings back, instead of copy and pasting data

Perfect for

Solar Installers

Save hours

Generate the single line diagrams, G98/G99, evidence, test sheets and handover documentation in seconds, with a single click from your phone.

Less errors

The automated system doesn't make mistakes or go for coffee breaks.

All in one package

The system also generates test sheets, MCS handover documents, a handover booklet and the single line diagrams, all in a single click.

What you can expect

Tasks automated

Hours saved

Increase in sales year on year

Before Automation

After Automation

G98 Grid Connection Automated Form Generator for Solar Installers: Streamlining the Application Process

With the push towards greener energy sources, solar installers in the UK face complex processes in connecting new solar generation systems to the grid. The Energy Networks Association (ENA) oversees regulations such as the Engineering Recommendation G98, which governs the technical requirements for such connections. This set of standards ensures safety and reliability but navigating the various technical specifications and administrative procedures can be challenging.

We've built a fully automated G98 Grid Connection Automated Form Generator aims to streamline this process, making it more efficient for solar installers to comply with regulations.

With our tool, you can generate and send a fully compliant G98 in seconds, with single line diagrams.

Automation in form generation is a leap forward for solar installers, allowing for quicker and more accurate submissions to energy networks. This technology takes into account the intricate technical specifications of solar installations and the stringent G98 regulatory framework, offering a solution that minimises errors and processing time. Such innovations not only facilitate better compliance but also enable installers to accelerate the integration of solar generation into the national grid. This is crucial in a market that is swiftly expanding, as the UK advances its sustainability targets.

Key Takeaways

  • The form generator simplifies compliance with G98 regulations for solar installers.
  • Automated processes lead to more accurate and timely grid connection submissions.
  • This tool is pivotal in supporting the UK's transition to renewable energy sources.

Understanding G98 Regulations


G98 regulations are a set of technical requirements that ensure the safety and stability of the electricity grid. They apply to small-scale Distributed Energy Resources (DERs) looking to connect to the National Grid Electricity Distribution (NGED) network.

The Role of National Grid Electricity Distribution

The NGED is responsible for maintaining the balance and stability of the electricity grid. They require that all DERs under 16A per phase comply with G98 regulations, which enable a safe and efficient connection process. The standards ensure that the integration of new power sources does not compromise the existing infrastructure.

Essential Criteria for G98 Compliance

To comply with G98, DERs must adhere to specific technical criteria:

  • Capacity: Must not exceed 3.68 kW (single-phase) or 11.04 kW (three-phase)
  • Synchronisation: Must synchronise with grid frequency and voltage
  • Disconnection: Must disconnect if grid parameters deviate beyond set thresholds

Compliance with these criteria is crucial for maintaining grid stability and ensuring the security of the electricity supply.

Safety and Protection Devices

G98 mandates the use of protection devices to prevent hazards and safeguard the grid:

  • Overcurrent Protection: Protection against excess currents that could cause damage
  • Islanding Protection: Detects disconnection from the main grid and prevents inadvertent operation
  • Voltage and Frequency Trip: Mechanisms to disconnect DERs if grid voltage or frequency exceeds safe limits

These protection devices play an essential role in reducing risks associated with grid-connected DERs.

Solar Installation Technical Specifications


The technical specifications detail the essential components and standards for effectively integrating solar PV systems with the electrical grid.

Solar PV Systems and Equipment

Solar PV systems are composed of several key elements including solar panels, mounting structures, and associated equipment necessary to convert sunlight into electrical energy. The capacity of these systems is often measured in kilowatts (kW). It is crucial that all equipment adheres to industry standards to ensure safety and performance. Solar installers must ensure the equipment chosen has the correct specifications for the intended application.

  • Solar panels: The solar panels should have a documented output, typically provided in kWp (kilowatt-peak).
  • Mounting structure: The choice of mounting structure must comply with the weight and wind load specifications for safety.

Inverter and Grid Connection Standards

The inverter, a pivotal component of solar installations, transforms the direct current (DC) electricity from solar panels into alternating current (AC), making it compatible with the grid. Installers need to select inverters that match the system's capacity and comply with G98 regulations for connecting to the grid.

  • Inverter Capacity: Should correspond to the system's total capacity to maximise efficiency.
  • Compliance: Must meet G98 or G99 standards, depending on the size and type of the connection.

Phase and Voltage Considerations

Solar installations can be connected to single-phase or three-phase systems, with the choice depending on the installation's size and capacity. Voltage fluctuations are a vital consideration – they must be minimised to prevent damage to the grid or the equipment.

  • Phase: Single-phase connections are typically used for smaller installations, while larger setups might require a three-phase connection.
  • Voltage: Voltage levels should remain within the permissible range to protect against fluctuations that could harm efficiency and equipment longevity.

Automated Form Generation Process

The automated form generation process simplifies G98 grid connection applications for solar installers, ensuring accuracy and efficiency in data handling and submission procedures.

Entering Installation Data

Upon initiating the form generation, the installer is prompted to input specific installation details into the generator's interface. These details typically include:

  • Site Address: The precise location of the solar installation.
  • Installer Information: Company name and accreditation details.
  • Solar System Specifications: Such as capacity, inverter type, and number of panels.
  • Electricity Supply Details: Including the supply type and existing electricity infrastructure.

This structured data input ensures that all relevant information for the G98 application is collated systematically.

Validation and Electronic Submission

Before submitting the form, the generator performs a thorough validation of the entered data to check for any inconsistencies or missing information. Key validation points are:

  • Accuracy of Address: Verifying correct format and details.
  • Compliance with G99 Requirements: For larger installations that might fall under G99, ensuring the generation unit's specifications are within G98 limits.
  • System Configuration Confirmation: Cross-checking that the system details align with standard electrical safety and performance norms.

Once validation is complete, the generator facilitates electronic submission to the appropriate authority, streamlining the approval process for grid connection. The installer receives a confirmation receipt, and the form is processed for review, significantly reducing the turnaround time for connection approvals.

Post-G98 Connection Procedures

After obtaining G98 approval, solar installers must conduct specific procedures to ensure safe and compliant connection to the National Grid. These include thorough testing and securing necessary final approvals.

Approval and Testing

The installer must submit all relevant documentation to the Distribution Network Operator (DNO) for final approval. This documentation often includes:

  • Test certificates
  • Installation details
  • Manufacturers' declarations

Testing is a crucial phase ensuring the solar system complies with G98 standards. The installer performs the following tests:

  1. Insulation resistance testing
  2. Earth fault loop impedance testing
  3. Operational testing of all devices

Connecting to the National Grid

Upon approval, the solar installation can be connected in parallel with the National Grid. The connection process involves:

  • Securing a connection point as agreed with the DNO
  • Ensuring that the switchgear is compatible and meets National Grid Electricity Distribution criteria
  • Verifying that protection settings are correctly configured to prevent backfeeding during power outages

It's imperative that the solar installer strictly follows all guidance provided by the DNO for a successful connection to the National Grid.

Supplementary Applications and Upgrades

Solar installers seeking to enhance their systems can consider adding battery storage and increasing capacity, or transitioning from G98 to G99 for larger scale installations. These upgrades can optimise energy usage and allow for higher power generation.

Battery Storage and Additional Capacity

Solar installations may benefit from integrating battery storage solutions to increase energy independence and provide back-up power. The capacity of these storage systems is critical, as it determines the amount of energy that can be stored and delivered upon demand. Installers should match the battery's power rating to the solar array's output, ensuring that the systems are compatible and can handle the electrical load.

For commercial entities, where energy demand is significantly higher, upsizing battery capacity can lead to improved energy management. Additional capacity should be considered if energy consumption patterns indicate the current system often reaches or exceeds its limit. This can be especially beneficial for businesses with high energy demands outside of peak solar production hours.

UpgradeBenefitBattery StorageProvides energy independence and backup power.Additional CapacityEnsures the system can cope with increased energy demands

From G98 to G99 for Larger Installations

Installations exceeding the G98 threshold, in terms of size and power output, must comply with the G99 standard. This typically applies to systems with a power rating over 3.68 kW for single-phase supplies or 11.04 kW for three-phase supplies. The transition to G99 allows for larger solar and wind energy installations that can contribute more significantly to the grid.

Solar installers should understand that a move to G99 entails more stringent connection requirements and possibly a more detailed application process. However, the increased capacity can offer economies of scale and is suitable for large-scale commercial installations or situations where community energy sharing is envisaged.

Installation TypeG98 LimitG99 RequirementSingle-phaseUp to 3.68 kWAbove 3.68 kW; requires G99Three-phaseUp to 11.04 kWAbove 11.04 kW; requires G99Wind InstallationsVaries by caseMust comply with G99 if over limit

Installers must ensure that all system upgrades comply with current regulations and ideally should work closely with the distribution network operator (DNO) to facilitate smooth transitions from G98 to G99 standards.

Frequently Asked Questions

The following section provides precise answers to common queries surrounding the G98 Grid connection automated form generator for solar installers.

How can I obtain a G98 certificate for my solar installation?

A G98 certificate can be acquired by completing the G98 commissioning form and submitting it to the Distributed Network Operator (DNO). The DNO reviews the application and issues the certification upon approval.

What are the costs associated with the G98 application process?

There may be variable costs for processing the G98 application, depending on the DNO. Installers should contact their local DNO for specific pricing details.

What does the G98 commissioning form entail for solar panel systems?

The G98 commissioning form requires details about the solar installation, including technical specifications and installer information. It serves to ensure the system complies with UK standards for low power generating equipment.

Could you explain the G98 regulations and their relevance to solar installers?

The G98 regulations are a set of criteria that solar installations must meet to be connected to the UK grid. They ensure safety and reliability in energy supply and are crucial for installers to understand for compliant installations.

Where can I find an example of a completed G98 form to guide my application?

Completed G98 form examples can typically be found through educational resources provided by industry organisations or directly from a DNO.

How does one submit the G98 application form, and is there a downloadable PDF version available?

The G98 application form is submitted to the respective DNO, either through their online portal or via email. Many DNOs provide a downloadable PDF version of the form on their websites.

Interested in saving hours in the G98 form submission process?

Our G98 form generator automation allows you to complete the form in just 15 seconds, with absolute accuracy and no human error. Curious to see how it works? Get in touch to discover more at:


Ready to save hours?
Awesome, let’s talk

You’re unique, which is why we prefer to jump on a call together (or email if you prefer) and discuss how we can help you achieve the best outcomes for your business with automation.