My solar farm got hit by a big storm. The storm was pretty bad, lots of property damage across the UK. For the whole of my life, I have never worried about such things as long as my house is ok and no trees fall on us. What else would I have to worry about? Its not like I have had a huge number of very expensive to install sheets of silicon and glass standing on a hilltop is it? Wait…
One text message you don’t really want to get is one from the landowner your solar farm is on telling you that panels have been ripped off their frames by high winds. This is scary news, especially before you see pictures. At that point, you worry how many have been destroyed? 100? 500? And how much will it cost to fix? and how much other damage is done.
As it happens, it was not too bad. The total damage is about £8k. Annoyingly thats the cost to actually fix and replace things, not the actual material cost of new panels, because we happen to have 30 spare ones on site anyway. This seems super expensive to me, but I have not personally visited the site to look at the damage. Its not just that ‘some’ panels are destroyed, others would have been scratched by flying debris, and also actual metal supporting beams were twisted and broken by the force of the winds. Yup, it was super windy. It looks like among the other costs we need…
- 25x M12 fixing sets (wholesale about £10 each, so about £250)
- 50x M8 fixing sets (not sure, about £2 each? so about £100)
Which means a lot of it is going to be labour, and no doubt travel expenses. Its a REAL PAIN that the site is so far away. Also of course all of this is through 3rd parties. I pay a construction company who pay contractors. Those 2 extra profit margins add up. If I was younger and more ambitious I’d hire a bunch of people and build my own solar farms with my own employees, which would be much more efficient…
The storm was bad enough that the power was down in that area anyway. The farm got shut off, and for reasons that are not clear, was switched off for a long period before people got up there and switched everything back on. At one point, the farm was briefly reconnected but not transmitting data, so in the chaos that ensued it was not clear if even switching it back on worked. This was very very stressful for me. I would have liked to go a year before I had any major bills for anything relating to this project, but there you go… As a result, the power output chart looks like this:
Thats quite a gap. The site did actually come back on and generated on the 19th as I can see from the pure meter stats instead of the inverter reported stats:
But even so, we had just under 2 weeks of downtime with zero generation. By absolute luck, this was in December, the lowest point in the year for generation. If this had been mid summer it would have a been a catastrophe.
There are other solar farms that were massively damaged and half destroyed by the same storm, so I actually think we got off lightly. Also it seems like the damage was to a specific strip of the farm on the very crest of the hill, so its likely that this is just ‘the weakest point’. We are looking at strengthening some bits on those areas given that we now have real world data that this is the part of the farm most at risk.
Mounting systems for solar panels are rated for certain windspeeds, but although ‘the windspeed’ on a certain day might only be 60mph, there may be specific small pockets where it will hit much higher. The only real defense against this sort of thing is going to be accepting some occasional storm damage and factoring it into the budget :(.
Of course the real kicker in all this is that the climate emergency is meaning extreme weather events like this will get worse and worse and worse unless we take drastic action. I have made a 25 year investment, and who knows how bad the peak storms will be in 2050 unless we actually do something. Of course this is not just a renewable energy problem. Roads, railway lines, power lines, and all infrastructure gets very vulnerable once rain, wind and temperature levels move outside the normal boundaries. The UK almost lost its marbles when we had some 40 degree days a few years back, but sadly thats likely to become the norm.
It really is about time people started giving a damn, but recent ‘drill baby drill’ rhetoric from the USA suggests that we are rapidly heading in the wrong direction. This is insane :(.
On the positive side, £8k damage on a £1.5m installation is not the end of the world. Its a pain, but hopefully a one-off. We shall see. I am looking forward to the power output of the site creeping up in the coming months. I am also close to getting certification for REGOs, which will boost the income a bit. You would not believe the detailed forms and paperwork required just to prove I own a solar farm.