New Connection Estimate - Scoltand

[Jenki]

HI, I have had an estimate quote back for connection to our plot, there is OH  HV cables (11KV) running along the boundary of the field, and at the road a Transformer supply 3 other properties.

My enquiry asked for a quote for 15KVA or 20KVA, just so I could get an idea of costs before committing to purchase.

The quote came back stating that the existing transformer would be upgraded to 50KVA, associated reconnection of other properties and then laying and connecting to an enclosure (groundworks and enclosure by me).

 

The quote came back at £3500+V for 15KVA and £5000+V for 20KVA, all cables the same.

When asked where the difference comes from its basically I either pay for 15KVA /50KVA( 30%) or 20KVA/50KVA (40%) for the transformer with the rest stumped up by the network.

So am I missing something or should I just opt for the 15KVA?  it will still have 100A cut out?

TIA