Installation of a generator for a house.

PG:

broadgage:

Is there any need to innvolve the DNO ? I would have thought not as a changeover switch is to be used, with no question of paralell running, backfeeding, or need for synchronising. 

 

The addition of the changeover switch modifies the DNO connections between the meter and the Consumer Unit. Also the DNO fuses need pulling.

UKPN advice is to fill in the form for the modification of their network plus a G99 form (even though there is no paralleling planned - it is "A switched alternative supply")

The DNO have a right to witness that the interlocks preventing paralleling are effective - In practice, they (UKPN) don't exercise it for small installations.



No pulling of service fuses, nor modification of  DNO connections between meter and consumer unit would be needed if the work was done in the way that I suggest.


1) Install the new changeover switch. Take the mains input into this switch from a 30/32 amp circuit in the existing consumer unit. Connect the generator input  to the generator.


2) Install a new 6 or 8 way consumer unit, connected to the output of the changeover switch.


3) Transfer the existing lighting circuits from the old consumer unit to the new consumer unit.

     Transfer from the old consumer unit to the new consumer unit any dedicated circuits for central heating or other low power high priority loads.

   Install a new 10 amp circuit from new consumer unit to a single red socket in the kitchen.

   Install 2 or 3 new 4 amp circuits to twin red sockets as needed, and as earlier described.



     

PG:

broadgage:

Is there any need to innvolve the DNO ? I would have thought not as a changeover switch is to be used, with no question of paralell running, backfeeding, or need for synchronising. 

 

The addition of the changeover switch modifies the DNO connections between the meter and the Consumer Unit. Also the DNO fuses need pulling.

UKPN advice is to fill in the form for the modification of their network plus a G99 form (even though there is no paralleling planned - it is "A switched alternative supply")

The DNO have a right to witness that the interlocks preventing paralleling are effective - In practice, they (UKPN) don't exercise it for small installations.



No pulling of service fuses, nor modification of  DNO connections between meter and consumer unit would be needed if the work was done in the way that I suggest.


1) Install the new changeover switch. Take the mains input into this switch from a 30/32 amp circuit in the existing consumer unit. Connect the generator input  to the generator.


2) Install a new 6 or 8 way consumer unit, connected to the output of the changeover switch.


3) Transfer the existing lighting circuits from the old consumer unit to the new consumer unit.

     Transfer from the old consumer unit to the new consumer unit any dedicated circuits for central heating or other low power high priority loads.

   Install a new 10 amp circuit from new consumer unit to a single red socket in the kitchen.

   Install 2 or 3 new 4 amp circuits to twin red sockets as needed, and as earlier described.