0800 005 1005
hello@bartonknightenergy.co.uk

For Organisations

G98/G99/G100 infrastructure application services

Talk To Us

Experts in Renewable Energy

We help homeowners and commercial organisations apply to and notify local energy distribution networks (District Network Operators or DNOs) for the connection of solar panels or other renewable energy sources to the National Grid.

For small-scale microgeneration systems, e.g. most domestic solar PV systems up to 16amps or 3.68kW per phase, a ‘connect and notify’ process is required, as per the Engineering Recommendation standard (EREC) G98. The DNO must be notified within 28 days of installation.

For larger generation schemes i.e. with an output greater than 3.68kW, a more complex G99 application for DNO approval is required, with site plans etc. Depending on the specification, approval can take between 10-45 working days.

DNO notification and approval ensures that local networks can safely accommodate the additional power. Our experienced team can assist with both G98 notifications and G99 applications to ensure your project progresses as planned- contact hello@bartonknightenergy.co.uk to find out more.

How does it work?

Step 1

Contact us to discuss your requirements - we will discuss your current energy usage, systems, and tariffs, budget, timescales, and any low-carbon goals.

Step 2

If you are interested in purchasing a renewable energy system from Barton Knight, we will visit your property to assess its suitability for various options - size, access, age, insulation, number of/proximity to other properties, and your existing systems will all influence our recommendation. We will also advise and assist with any relevant applications for government grant funding or to eg UK Power Networks/National Grid if required.

Step 3

Depending on the system you have chosen, we will advise on any preparation for the day of installation required - typically this is minimal.

Step 3

Once the system has been installed and tested, we will walk you through the controls and give you a thorough handover, along with all operating and maintenance and warranty documents.

Talk To Us

Speak to one of our Energy Experts

Book a review with our energy consultants

Book a review with our energy consultant
Talk To Us

Rated 10/10 on Checkatrade

Talk To Us

FAQs for organisations

The UK government has committed nearly £5 billion in funding to help businesses in reaching net-zero emissions by 2050. This covers government grants, tax relief, and specialised green loans, with some examples as follows:

SMEs can apply for Green Business Grants to install technologies that reduce carbon emissions, such as LED lighting and solar PV panels – available until March 2026. The Workplace Charging Scheme (WCS) can provide up to £15,000 off the cost of installing Electric Vehicle chargers. And local authorities often provide bespoke funding for energy efficiency improvements.

Power Purchase Agreements (PPAs) offer a “zero-capital” option where a third-party developer installs and maintains renewable equipment (like solar) on your site at no upfront cost, and you buy the electricity at a fixed, discounted rate. 

In addition, many major banks offer loans for sustainable investments (e.g., Lloyds Clean Growth Financing, Barclays Green Loans, NatWest Green Loans) with features like lower interest rates, no arrangement fees, or cashback rewards.

We will review your requirements in detail and conduct a site survey and energy audit to determine the best technology, calculate your energy profile, and assess structural suitability.

Most commercial rooftops, warehouses, and ground-mounted areas are suitable. South-facing roofs offer the highest output, but east/west splits are effective for daytime energy usage.

We aim for minimal disruption, working around business hours if required. A standard commercial installation can take from a few days to a few weeks, depending on the system, scale, and property. 

As an NICEIC Approved Contractor, we are regulated by the UK’s largest voluntary register of electrical businesses, which assesses the installation work of over 36,000 contractors.

We are a verified Constructionline Gold contractor, working to enhanced PAS 91 criteria and validated as ‘Deemed to Satisfy’ for SSIP, meeting pre-qualification standards such as the Common Assessment Standard (CAS). We are a member of the Electrical Contractors Association, and Safe Contractor Approval shows our business is safe, ethical, and financially stable.

We also hold several specific renewable energy accreditations, including MCS certification for small-scale installations (e.g. solar panels, battery storage, heat pumps), membership of the Renewable Energy Consumer Code (RECC), and are a Trusted Partner of Octopus Energy.

Talk To Us

Recent

Projects

Photo of generators installed at Wexham Park Hospital

DSR compliant generators provide resilience for NHS Trust and contribute towards balancing the national grid

New generators and G99 infrastructure

Care Home converted with Solar panels and EV chargers

...
Photo of Epsom detached house with new solar panels on.

Solar panel and battery system saves Epsom household circa £1200

...
Talk To Us

CALL US 0800 005 1005 or

TALK TO US