Advanced ALOMCP Information

Note – this scheme, and the technical requirements behind it, do not apply to domestic scale generation – specifically it does not apply to any generation connected under the auspices of EREC G83.

The electricity network licensees, ie: National Grid Electricity System Operator Limited (NGESO), the Distribution Network Operators (DNO) and Independent Distribution Network Operators (IDNO), have set up a service for generation owners to change their protection settings (the “programme”). 

The information in this document sets out the basis on which the owner of an embedded generating facility may apply for participation in the programme, If, as an owner of such a generating facility, you submit an application for participation in the programme you will be doing so on the basis set out in this document. If your application is accepted, you will become contractually bound. 

Neither the publication of this information nor any of the content presented herein should be regarded as a commitment or representation on the part of your DNO/IDNO or NGESO to enter into a contractual arrangement. 

The participating DNOs and IDNOs are: 

Electricity North West 

GTC 

Northern Powergrid 

Scottish and Southern Electricity Networks 

SP Energy Networks 

UK Power Networks 

Western Power Distribution 

The remaining IDNOs have been engaged in the programme and are expected to join the scheme in the very near future. Generators connected to any IDNO should register and will be dealt with in the normal manner. 

Generator Repayment for Resetting of Interface Protection Settings It is a requirement of the Distribution Code (and its subordinate document EREC G59) that all owners of generation installed prior to February 2018 comply with new setting requirements for all interface protection in accordance with EREC G59 (which can be downloaded from here.) 

Owners of generation have a requirement to comply with the modified interface protection requirements in the revised EREC G59 and have until 31 August 2022 to do so. After that date owners who have not made the change may be the subject of an enforcement programme. Note that the new requirements do not apply to smaller generation equipment that has been type tested and which does not have a specific rate of change of frequency (RoCoF), or vector shift, loss of mains (LoM) interface protection functions. 

The new requirements do apply to any interface protection included in the control systems of generating units, inverters, etc. To incentivise the early adoption of these changes the network licensees have set up this website to allow generation owners to register their intention to make settings changes and to facilitate the development of a prioritised delivery programme. It is intended that selected generation owners who make the settings changes in advance of the deadline will be eligible for payment as described in the rest of these pages. 

Any such payment will be made by the DNO/IDNO whose network they are connected to. The payment is related to the degree of work involved in making the changes as described below. 191130 ALoMCP_Overview_v1.92.docx 2 30/11/2019 

The funding is not limitless and there may be constraints on the numbers of applications that your DNO or IDNO is able to process in any given period. Applying as early as you can will increase the chance that you will be accepted for the programme. 

Payments will not exceed the value of your application, even if additional necessary work is identified at a later date. In order for you to make an assessment of the works required at your site, you may, in the first instance, refer to your operation and maintenance contractors or original installer. In the second instance, you may wish to contact one of the contractors who have expressed an interest in carrying out the works and are listed on the ENA website.

 There may be costs you incur associated with identifying the works required. This payment scheme does not provide for reimbursement of those costs. If your site comprises more than one generation type (eg solar and wind on the same site) you can enter “multiple” as the generation type and provide additional detail in the free-entry note area. 

Note that some generation types, particularly, but not exclusively, inverters will include LoM functionality in the control equipment for the inverter. These settings must be made to comply with the new requirements as well as any relay protection that might be on the site. In some cases, a site might comprise dozens or even hundreds of inverters. All must be modified if necessary, to conform to the new requirements. 

Please also note that this programme does not cover any replacement to an inverter itself as the work will need to be done through changing the logic of their control system (ie either resetting them or disabling the LoM function). If resetting the logic etc of the control system is not possible, the implications will need to be discussed with the DNO.

Owners of synchronous generation need to be aware of the risks of out of synchronism energizations. This risk will generally be reduced by replacing vector shift with RoCoF protection. However, an assessment of this risk is the responsibility of the generation owner. 

To be eligible to participate you must meet the following criteria:

a) Your generation was connected and commissioned onto the network before 01 February 2018; 

b) Your generation operates in long-term parallel mode with the distribution network;

c) Your generation interface protection settings are not already those required by EREC G59, and you can provide evidence of the existing settings; 

d) Your generation is connected to the network of the DNO or IDNO that you stated it to be;

e) Your agreement that you will apply, as required, the following changes and maintain interface protection settings compliant with the requirements of G59,

And we have a new statement from the NG which states as follows:

Briefing Note

The programme recognizes that there has been some uncertainty in the programme’s early stages in relation to whether it is necessary to replace non-compliant relays or simply disable them. For applications submitted before 01 February 2020, the programme will accept generation owners’ requests to change relays, funded at £4k per relay.

Following a review of the likely volumes of relays changes that would follow from this approach, and reviewing the risk assessment work undertaken by the DC0079 working group, the programme’s policy for non-compliant relays is now confirmed that those relays should have their loss of mains functionality disabled (ie not replaced), and will be eligible for a payment of £1.5k. As before, in the case of asynchronous or double fed induction generator, it will be necessary to replace a non-compliant relay, for which a payment of £4k will be made. This approach will be applied to all sites applying on or after 01 February 2020 for payment from the programme.

Get In Touch

If you are looking for a bespoke training session for your staff why not get in touch to discuss your requirements?

Our training sessions can be held at your offices or workshop.

Contact Us Today

Accreditations

Testimonials

  • Thanks Dave. Excellent Course Material.

    Quentin Oakley

    Really Helpful, Great Information. All Great, Thanks.

    Robert Smith
  • All Great! Excellent!

    Wayne Dubois

    The work they did impressed me on multiple levels. I have been very happy about the whole process and they have done a great job. Always helpful with our questions!

    Richard Brennan
  • We have been very much impressed by G99 Training. Needless to say we are extremely satisfied with the results. Thank you!

    Elena Gonzales

    Great Job. And all because of the awesome guys from G99.training.

    John Jones
  • I really liked the training given on the testers.

    Andrew Evans

    The course is a lot more intensive than I had expected, but great information.

    James Mabbet
  • Loved this course.

    Jamie Dunleavy

    It takes the full 5 days to get an understanding of G99-1. And Dave is very good at getting all of us on the course to understand what was being said.

    Jamie Tompkins
  • Really interesting. Filled in some missing gapes and answered many questions.

    Keith Jones

    Enhanced my knowledge and understanding which I can use to assist in my day-to-day activities.

    Mark Fitzgerald
  • The course structure was really good. It did not disappoint, very informative.

    Jeremy Hunt

    Very well put together and delivered. Great experience in a great atmosphere, being taught by a great guy!

    Kristian Daynes
  • Thanks Dave. Excellent Course Material.

    Quentin Oakley
  • Really Helpful, Great Information. All Great, Thanks.

    Robert Smith
  • All Great! Excellent!

    Wayne Dubois
  • The work they did impressed me on multiple levels. I have been very happy about the whole process and they have done a great job. Always helpful with our questions!

    Richard Brennan
  • We have been very much impressed by G99 Training. Needless to say we are extremely satisfied with the results. Thank you!

    Elena Gonzales
  • Great Job. And all because of the awesome guys from G99.training.

    John Jones
  • I really liked the training given on the testers.

    Andrew Evans
  • The course is a lot more intensive than I had expected, but great information.

    James Mabbet
  • Loved this course.

    Jamie Dunleavy
  • It takes the full 5 days to get an understanding of G99-1. And Dave is very good at getting all of us on the course to understand what was being said.

    Jamie Tompkins
  • Really interesting. Filled in some missing gapes and answered many questions.

    Keith Jones
  • Enhanced my knowledge and understanding which I can use to assist in my day-to-day activities.

    Mark Fitzgerald
  • The course structure was really good. It did not disappoint, very informative.

    Jeremy Hunt
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram