Spent the afternoon in the dappled autumn sunlight on the southern flanks of Snowdon. It was either that or back at the office…it was a close call. Visited my old wardening stamping grounds, looking at the development of the next hydro. Hafod y Llan 640hydro should have its planning permission in the next few days. We are now working on the next batch. Visited Afon y Cwm today which is another heavy metal polluted river in Snowdonia. The abstraction licence application is already in with the Environment Agency.
Now comes the head scratching bit. Design and how we build it. The advantage of this hydro more than any other we are working on is that access for the pipe is really really good. There is a track from the possible turbine house to the weir point. The weir location is simple and small. there is even an old leat near the weir for the diversion flow when we want to construct the weir.
The Challenge for this hydro is hiding the power house because of the unique location. The proposed site is near the scheduled ancient monument that is Dinas Emrys. the draft solution subject to detail is to underground some of the building and place it between two high walls. Finally we intend to cap the building off with a grass roof
What we hope to end up with is a 100kw pelton turbine which should produce 430Mwh pa. Or two mansions worth of energy . There are still quite a few aspects to cover including archeology, method statements, potential tree impact or mitigation and the list goes on. with a fair wind we should be able to build this next year but as I have learnt with hydros – take each day as it comes