In SSE Generation Ltd v HMRC [2018] TC06618 the First Tier tribunal (FTT) held that some of the expenditure on constructing a hydroelectric power scheme was eligible for capital allowances as plant; the rest was specifically excluded by CAA 2001.

Capital allowances are available in respect of Qualifying expenditure on the provision of plant and machinery used in a Qualifying activity:

SSE incurred some £300 million of expenditure in constructing and then remediating a hydroelectric power generation scheme near Loch Ness:

The FTT allowed the appeal in part and found that:

The judge said that the correct approach was to consider if,on an item by item basis, the scheme qualified as plant in common law.  Then, if it did, to consider whether s21-23 applied to specifically disqualify it for capital allowance purposes. He said the legislation is carefully worded so as to not override the common law test for what is plant. 

The technical aspects of this case make it a lengthy read as the FTT went through each item with great care. What it shows is the attention to detail required when dealing with large capital allowance claims; items which may at first sight appear to be excluded by the legislation can qualify depending on the specific facts of the case.

Given the  substantial amounts involved this decision may well be appealed by HMRC.

Links:

Plant and machinery (companies): allowances

What expenditure qualifies for plant and machinery allowances

Annual Investment Allowance (AIA) 

External:

SSE Generation Ltd v HMRC [2018] TC06618