Typical projects
- Commercial rooftop and ground-mount solar
- Farm, estate and industrial energy projects
- Small BESS and co-located PV plus storage
- EV hubs, depots and electrification upgrades
Installer & developer support
Commercial G99 and DNO support when the project has outgrown form-filling.
Senior connection input for commercial solar, battery, EV charging and multi-technology sites where export, reinforcement or a DNO query could affect the customer offer.
Best suited to
Commercial schemes where the grid position matters.
Typical support
- G98/G99 route and application support
- Single-line diagram and technical review
- Import/export and G100 strategy
- DNO offer, reinforcement and query support
Pricing
Based on the work required.
Commercial application support from £600.
Complex or multi-technology sites, full G100 strategies and projects needing drawings or sustained DNO engagement are quoted to scope, typically from £1,200. VAT is charged where applicable.
Why use senior support?
The application is cheap. A bad assumption is not.
This is not a high-volume domestic admin service. It is for installers and developers who need someone to understand the network position, spot inconsistencies and deal with the DNO when the answer affects price, programme or feasibility.
The best time to ask is before promising export capacity, fixing an installation date, ordering major equipment or accepting a connection offer that has not been properly reviewed.
Frequently asked
G98, G99 and G100.
What is a G99 application?
G99 is the DNO process used where generation or storage connects in parallel with the distribution network and falls outside G98. It usually requires assessment and approval before commissioning.
What is the difference between G98 and G99?
G98 generally applies to fully type-tested microgeneration up to and including 16 A per phase, approximately 3.68 kW single-phase or 11.04 kW three-phase. G99 applies above that threshold or where the G98 conditions are not met.
What is G100 export limitation?
G100 applies where an export limitation scheme controls the maximum export to the DNO. It is common where installed solar or storage capacity is higher than the agreed export capacity.
Do EV chargers require G99?
EV chargers are demand, so they do not require G99 by themselves. They may require DNO notification or approval through EV and heat-pump processes. G99 or G100 can also apply where charging is combined with generation or storage.
What information is normally needed?
Typical inputs include the site address and MPAN, demand and generation capacities, inverter or converter details, single-line diagram, import/export assumptions, protection information and equipment certificates.
How long will the DNO take?
Timescales depend on the DNO, voltage, completeness of the application, reinforcement and interactivity. A simple LV application can be materially quicker than an HV or multi-technology connection, so programme should not be promised before the route is understood.
Can equipment be installed before approval?
If prior approval is required, commissioning in parallel with the network should wait for the DNO position. Ordering or installing too early can create cost and compliance problems if the approved export, protection or connection arrangement differs.
When should an installer ask for help?
Before fixing the customer price or programme where export, reinforcement, G100, unusual protection or a DNO technical query could change the scheme.
Next step
Need help with a commercial DNO application?
Send the site location, proposed equipment, import/export capacities and any existing DNO correspondence. You will get a clear view on scope and fee.