I move: "That the Bill be read a Second Time." This is a Bill to make provision for the execution of certain works by the Electricity Supply Board for the purpose of improving the storage of water in connection with the Shannon hydro-electric works and in certain other matters, to amend and extend the provisions of existing legislation. The works which it is proposed to undertake under the terms of this Bill are set out in the First Schedule thereto—the raising of the level of the water in Lough Derg from 110 to 112 feet O.D. and for that purpose to do certain things; the lowering of the level of Lough Ree to a minimum of 121 and making provision for controlling the level of the water in Lough Allen and for that purpose to do certain things; and the altering or removing and reconstructing divers quays, harbours, landing stages, boathouses, roads, bridges and other existing works. The first question that arises in relation to this measure is the necessity for providing this additional storage. At the present time, the Board are obliged to develop a considerable amount of energy at its fuel stations. Last year they developed approximately 82,000,000 units at such stations. That number of units represented about 1,600,000 cubic metres of water. That is the quantity of water that would have been utilised in the generation of a similar number of units at the hydro-electric works, and that water would have been utilised if it had been available.
The proposals for storage covered by the Bill before the Dáil will give, approximately, 260,000,000 cubic metres of water during the year and thereby reduce the amount of energy which it will be necessary to develop by steam. The present storage capacity of the Board's works is approximately 210,000,000 cubic metres. The execution of the additional works will increase that to 470,000,000 cubic metres and the experts contemplated storage up to 827,000,000 cubic metres at the full development of the scheme. It is proposed to enable the Board to carry out these works by making certain advances to it. The provisions of the Bill in that respect are, in the main, similar to the provisions of certain other Electricity Supply Acts that came before the Oireachtas. Some comment appears to have arisen from the fact that in this case the whole of the amount required by the Board is not taking the form of repayable advances, but some portion of it is being provided in the way of grants. Some misunderstanding appears to have been created on that account. The difference between the amount to be advanced to the Board and the total cost of the works, as estimated, is being provided for by way of grants, but the amount to be advanced represents the present economic value of these works to the Board. By the present economic value I mean the value of the additional storage to the Board, taking into account what it would cost annually to generate by steam the energy which could be produced at Ardnacrusha by additional water which will be made available in consequence of the execution of these works.
In arriving at that estimate of the present economic value of the works, however, the material item in the basis of calculation is that of interest. The Board have made their estimates upon the basis of the existing interest charge of 5½ per cent. At the present time discussions are proceeding between the representatives of the Board and representatives of the Department of Finance as to the rate of interest which will be charged upon future advances and it is, I think, to be anticipated that a lower rate than 5½ per cent. will operate. It is clear that, as the rate of interest reduces the present economic value of the works to the Board increases. It is not improbable that a rate of interest will be agreed upon which will in fact bring the actual cost and the present economic value of the works into relation, so that no grant will fall to be made. It is very desirable, however, that provision for advances should be made because it might be difficult for the Minister for Finance to give an undertaking over a period of years as to the rate of interest which would be charged. Deputies will note that the wording of the section provides for the making of grants to an amount not exceeding the £93,000 therein mentioned.