Solar panels for schools may be sound spending, but the case has not yet been made in the numbers
The Government has announced the first tranche of its Solar in Schools programme: forty schools in the North Island, one hundred and fifty seven in the South Island and three in the Chathams will have panels installed as part of a pilot for the thirty million dollar scheme unveiled in this year's Budget. The announcement speaks of five hundred schools in total, though the figures released so far account for two hundred. Whether the remaining three hundred are to follow in a later tranche, and on what timetable, the record does not say.
What is at stake is not the thirty million dollars itself, no small sum but not a large one against a Budget running in deficit, rather the discipline with which capital is allocated while the structural gap between what the Crown spends and what it collects remains unclosed. Every dollar committed to a discretionary programme is a dollar that cannot go to debt reduction, to tax relief, or to the core costs of running schools. That is true whether the programme is well designed or not, and it is the test this newspaper applies to all new spending, popular or otherwise.
The strongest case for the scheme is not hard to state. Power bills are a real cost pressed on school boards, and a board freed of that cost has more to spend on the classroom. Solar panels, once paid for, generate a saving that compounds over the life of the asset, and a Government that can find capital for such a purpose while restraining recurrent spending is doing something defensible in principle. This newspaper does not dismiss that argument, and would be wrong to pretend the idea itself is unsound.
But the Minister of Finance, Nicola Willis, has not yet shown the working. Why one hundred and fifty seven schools in the South Island, where sunshine hours are generally lower, were chosen ahead of a much smaller number in the North, is not explained in anything published so far. Nor is there any published estimate of cost per school, the expected saving in power costs, the payback period, or how the pilot was selected against these criteria rather than others. A thirty million dollar commitment, however modest against the whole Budget, deserves the same test of value for money that this newspaper would demand of any road, hospital wing, or tax change: a plain account of what is bought, for how much, and to what return. Until that account is given, the case for the programme, whatever its merits, remains asserted rather than shown.
- Publish the cost per school, the expected saving in power costs, and the payback period for the pilot before further tranches proceed.
- Explain plainly the basis on which the two hundred pilot schools were selected, including the regional distribution.
- Set out the funding and timetable for the remaining schools before treating five hundred as a settled commitment.