ALoMCP
ALoMCP ACCELERATED LOSS OF MAINS CHANGE PROGRAMME
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 the interface protection in accordance with EREC G59. 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.
To incentivise the early adoption of these changes the network licensees have set up http://www.ena-eng.org/ALoMCP/ 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.
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..
LOSS OF MAINS FINANCING
The ENA has prepared a financial incentive for the early adopters of these changes. The payment scales can be found via the http://www.ena-eng.org/ALoMCP/ weblink. However the current *Oct 2019 values are as follows.
£4000 per relay replacement as long as the existing relay can not be updated to meet the ROCOF requirements.
£1500 for the first relay settings change, then £500 for every relay on the site that needs adjusting.
There are many competitor websites claiming to apply and swap these relays for you. If you let them do this they will pocket your reimbursement!
COMPLETING THE WORK WITH AN APPROVED CONTRACTOR
Edward Hannam Limited has been completing G59 and now the more recent G99 tests for may years and has worked closely with DNO’s forming fantastic relationships. The DNO’s (District Network Operators) require that the changes to your equipment on there network are completed correctly and in a timely manner. If you use an ENA / DNO approved contractor such as Edward Hannam Limited then any fears from the DNO will be alleviated and DNO site witnessing not always required.
SITE CONSIDERATION TO THE ALoMCP REMBURSEMENT SCHEME
When applying to be considered for participation in the programme you will need to identify what works are required. These will conform to the table of payments above. 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 here. There may be costs you incur associated with identifying the works required. This payment scheme does not provide for reimbursement of those costs.
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. Assessments will need to be made to ensure your site inverters can be altered. Edward Hannam Limited will not take responsibility for the inverters.
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, namely
• Where RoCoF relays are used for LoM protection the applied setting must be 1.0Hzs-1, with a definite time delay of 500 ms.
• Any vector shift LoM protection is removed or disabled.
• Where the requisite RoCoF setting cannot be achieved without additional investment, remove LoM protection from all generation except for synchronous and doubly-fed induction (DFIG) units. For synchronous and DFIG types of generation a new relay should be installed compliant with the requisite RoCoF settings.
Where practical (ie: where the existing protection is capable) a single stage over frequency setting of 52.0 Hz, 500 ms definite time delay should be applied. If this setting is not possible, then the existing setting may remain.
