Not quite right Ted - you have to inform the DNO within 30 days of connecting a system up to the grid - before or after...
That's not what the law says. For G83 systems you must inform the DNO either beforehand or at the time of commissioning as per para 22 (2) (c) of the ESQCR 2002. For anything else you MUST get prior approval before connecting. In fact Scottish Power require prior notification even for G83 systems.
This information is to be provided to the DNO prior to the installation of a SSEG
unit(s) in order that a DNO can assess the potential impact that the connection will
have on the Network.
G83 is a guideline - not a law / rule. If you persuade your DNO that your home made over frequency / under freq etc etc etc setup complies with G83, you can connect. But I doubt they will allow it.
G83 is a bit like BS7671 - they are non-statutory but, in actuality, form the basis for 'best practice' that are followed by the relevant authorities. G83 is a 'recommendation' but I have yet to hear of any DNO that will allow grid connection under the terms of the ESQCR without compliance with it.
This is the relevant part of the ESQCR:
22. - (1) Without prejudice to regulation 21, no person shall install or operate a source of energy which may be connected in parallel with a distributor's network unless he -
(a) has the necessary and appropriate equipment to prevent danger or interference with that network or with the supply to consumers so far as is reasonably practicable;
(b) has the necessary and appropriate personnel and procedures to prevent danger so far as is reasonably practicable;
(c) where the source of energy is part of a low voltage consumer's installation, complies with British Standard Requirements; and
(d) agrees specific requirements with the distributor who owns or operates the network.
(2) Sub-paragraphs (b) and (d) of paragraph (1) shall not apply to a person who installs or operates a source of energy which may be connected in parallel with a distributor's network provided that sub-paragraphs (a) and (c) of paragraph (1) are complied with; and
(a) the source of energy does not produce an electrical output exceeding 16 amperes per phase at low voltage;
(b) the source of energy is configured to disconnect itself electrically from the parallel connection when the distributor's equipment disconnects the supply of electricity to the person's installation; and
(c) the person installing the source of energy ensures that the distributor is advised of the intention to use the source of energy in parallel with the network before, or at the time of, commissioning the source.
