From the outline planning the costs of the project can be estimated. It must be remembered that an estimate is just that an estimate; the costs will only be known when tenders have been returned and contracts entered into. Even that may not be the actual cost that will only be known when the final accounts have been settled.
The first project ever undertaken will be the biggest lesson in costing that will ever be learned, it is the experience of previous projects that is the best guide to pricing the next project.
Having said that, how do you derive prices for any project, the best answer is use the telephone. Talk to suppliers of the capital plant items such as transformers, switchgear, generators and UPSs, at the same time you can also get delivery periods. Some equipment such as LV switchboards and MCCs will almost certainly be unique to a particular project, to price these determine the number of cubicles that will form the switchboard or MCC and price each cubicle at £18000.
A switchboard cubicle can contain one ACB together with its controls and protection equipment, or seven 250A frame size MCCBs, or five 630A frame size MCCBs, or four 1600A frame size MCCBs or three 3200A frame size MCCBs.
It is more difficult to access the space required for starters within a MCC cubicle for direct on line starters seven