Yesterday was a major milestone with the first turbine foundation pour. This had involved a lot of planning and preparation to ensure it went smoothly. In order to get the pour completed as soon as possible, two concrete suppliers were contracted, and two long-reach concrete pumps were operating on site.
Deliveries started at 6am – it is important to get the pour completed as early as possible to avoid heat causing cracks in the concrete when it cures. As it turned out there was no problem with warm weather as it rained heavily for most of the day!
By 11am great progress was being made, with a regular stream of lorries meaning that over half the required volume of concrete had been poured.
The last deliveries were on site before 1pm, much earlier than had been anticipated, so the contractors had plenty of time for the finishing works to ensure the surface of the foundation has a smooth and regular surface.
Elsewhere on site, the steel fixers are hard at work completing the installation of the rebar for the T2 foundation, and at T3 the hardstanding is coming along well. It’s hoped the T2 pour will be around the 16th of June, and the T3 pour in early July.
It’s been a while since the last construction update, so here are some overdue pictures showing the progress that has been made in the last few weeks.
The substation roof is on with slates completed, and is awaiting the final steps (doors and metal wall cladding). This should be completed in the next few weeks, ready for the electrical fit-out.
The contractors have moved the heavy plant down to T3 to make a start there; the final connecting section of road has been completed, and the hardstanding cut and fill is almost finished, giving a level surface for the crane to operate on.
At T2, the hardstanding is complete, apart from the final section which will be built over part of the foundation once this is poured and backfilled. A thin blinding layer of concrete has been poured in the foundation base to give a clean, flat working area for assembling the steel reinforcement. The foundation cage has been assembled here; this is comprised of a series of long, heavy duty bolts, screwed into steel rings at the top and bottom. The turbine will eventually be bolted onto the top of these long rods.
At T3, you can see how the steel rebar is then built up around the foundation cage to provide the reinforcement for the foundation. Shuttering will be built up around this shortly to hold the concrete in place around the edges when it is poured. You can also see the ducts which have been buried under the foundation structure, ready to thread the electricity and communication cables for the turbines once these are laid later in the year.
Last Thursday we had a site visit with directors from both of the partner organisations, BHA Enterprise Ltd, and Community Energy Scotland Trading Ltd. They were pleased to see the great progress being made and were impressed at the quality of the work carried out by the contractors to date.
Finally, another reminder that the first foundation pour will be happening this Thursday, 26th May.
Just a quick note today to advise that the first foundation pour will be next Thursday the 26th. From around 6am concrete deliveries will be heading up to site, and deliveries will continue throughout the day. All being well we hope the pour will be completed by early evening. We’ll be monitoring works on the day and hope there won’t be any issues, but you may see some more lorries on the roads than usual. All traffic should be following the usual approved route from the A1.