MES Power Engineering | New Grid Connections | Contestable Connections
We are fully accredited to deal with contestable connections and to provide new grid connections. For more information, contact our technical sales team to arrange a quote.
contestable connections, high voltage power engineering, electrical design services
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New/Contestable Connections


We are accredited to deal with contestable connections with the Lloyds Register NERS scheme.Each host DNO has a connection process to make sure that connections are made to the right standards and within timeframes specified by the regulator. Customers can typically expect to follow this process:


1 Apply for Point of Connection (POC) and non-contestable charges.

We can take care of this for you – it involves drawing up a site plan of the development detailing the required loadings of proposed buildings or generation capacity. This plan must then be sent as an application to the DNO, in order that they can provide a Point of Connection.


2) DNO makes an offer of POC and non-contestable charges

The DNO will provide a POC and non-contestable charges. The timeframe for these (as set out by Ofgem) is:

Simple connection – 5 Days

Complex connection – 30 Days

Complicated connection – 50 Days

The non-contestable charges are calculated as per the DNOs condition 4 charging methodology statement.


3) Quote for contestable works

We will them prepare a quote using the information provided.

The sum of the non-contestable and contestable works then gives you the total connection cost.


4) Place order for contestable works

When you have placed the order for the contestable works, MES will then design a connection plan for approval by the DNO.


5) Accept and pay for non-contestable costs from DNO


6) Design approval by DNO

Once the non-contestable charges have been paid the DNO will approve MES’s connection design. They are obliged to do this with 10 days.


7) Adoption agreement issued and signed

The DNO will produce an adoption agreement that requires signatures from MES and the DNO. It is a standard document that lays out the process for adoption and connection of the asset constructed by MES. In some cases the customer will also be required to sign it.


8) Procurement of connection assets

Once the design is approved, MES will procure the approved equipment and prepare for the connection construction phase.


9) Construction of installation

MES will then begin the installation to the host DNOs technical standards. The DNO will carry out regular inspections to ensure compliance.


10) Testing and commissioning

We test and commission the installation before forwarding the documentation to the DNO and requesting a connection date.


11) Final connection to DNO network.

The DNO has to connect the site within 10-20 days of the connection request being made. This completes energisation.


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Cable Jointing

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Project Management

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Fault Location

This is a skill requiring years of experience!

We’ll find the fault within HV and LV cable, dig it out, joint it, test it and get it back up and running…read more

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Inspection and Maintenance

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Testing and Commissioning

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View our brochure to find out how we can help your needs.