The Distribution Network Operator, or DNO, manages the local electricity distribution network. Solar and battery systems connected to that network may require notification or approval depending on their characteristics.
What does the DNO do?
The DNO operates the local distribution network and manages the connection of generation and other equipment that can affect network operation.
Why can solar require DNO approval?
Solar generation can export electricity into the network. The DNO needs to ensure the connection meets the applicable technical requirements.
Do batteries also matter?
Yes. A battery can both import and export electricity, and its power rating can therefore be relevant to the grid connection design.
Commercial systems can be more complex
Larger commercial solar systems can require detailed connection studies and may involve network constraints or reinforcement requirements.
Do not leave DNO work until the end
Where grid approval is required, the process can influence equipment selection and project timescales.
Discuss your solar connection
Get support understanding the grid requirements for a domestic or commercial solar project.
Discuss Your ProjectFrequently asked questions
What is a DNO?
A Distribution Network Operator manages the local electricity distribution network.
Does solar need DNO approval?
The applicable notification or approval process depends on the size and characteristics of the system.
Does a battery need DNO approval?
Battery systems can be relevant to grid connection requirements because they can import and export electricity.
Who handles DNO applications?
The installer or an appropriate grid connection professional can normally manage the required process.
William Carter
Grid Connections Specialist at BrightGrid Energy

