Game Design, Programming and running a one-man games business…

Solar Farm Update! Line moved, Power agreement signed. Energizing date near.

I visited the solar farm yesterday. Its a long trip, but worth it. I had not been there for a while, so it was good to see progress. The reason I went on that day, was it was the day that the DNO (Distribution Network Operator) finally came and removed (recovered!) the 11kv line that ran right over the middle of our site, and redirected it around the farm, with a spur coming off to join into their substation. This was critical (and HUGELY DELAYED by insane bureaucracy) because without that line being gone, we could not install the final mounting tables and panels, or the last few inverters. There is now about a months work to go.

Its so hard to know with these things what is REALLY involved, so I half expected there to be two guys and a ladder on site, but in fact that was probably about 12 people, and multiple vans and cars and 2 tractor things and some people on those extendy platform things they use to go do stuff up telegraph poles, and a LOT of big phat cable. Here is some cable, with me for scale.

The big phat cables are the ones that connect the inverters to our switchgear and also the ones that go from that switchgear to the substation with the transformer in, so they are all roughly 400V cables. They are insanely, insanely heavy. Even heavier than they look, and they do not look light.

One of the big things that had changed since my last visit was the installation of our switchgear in a big metal shipping container. This is a big green thing, that was mostly assembled offsite, but then things need wiring into it. This is basically a switchboard where all the inverter cables get joined together ready to connect (still at 410V which is considered low voltage) to the DNO owned substation and transformer to take it from 410v to 11,000v. Annoyingly, due to earthing concerns, these two structures have to be a certain distance apart, BUT there is also a maximum distance apart they can be, for some technical reason, so its a bit tight, and nuts. Surely it makes sense to be one building? anyway… I had a good look inside the green box. Its big, you can walk around in there:

Maybe the most interesting bit in here will be the actual meter, but that is not installed yet (soon!) but also of interest are the copper busbars that all the cables coming in get attached to, so they can flow together as a single power source. Although amusingly there are two separate places for this, so its not actually single :D. In any case, these super chunky copper bars are LIVE when everything is energized:

There are a lot of cool things in the box, but the most unusual, to me, and wacky are the big fire-suppression systems in the ceiling. I hope we never need them, but I guess you have to have them. All this stuff ends up being madly pricey. Anyway, here is a picture of an industrial automatic fire extinguisher :D

The other momentous thing is probably the sight (finally omg) of the DNO doing the work to move the old line and actually connect my site to the grid. It will now be connected, but not energised. We need the final panels, and then some paperwork and a ceremony called ‘witnessing’ to ‘commission’ the site. I am surprised we do not need to sacrifice a goat at this point, but it will probably just be throwing a switch and then some paperwork. Hopefully in a months time. Anyway, here are DNO people doing things:

And this picture gives you an idea of where the DNO substation (tan color) and our switchgear (green box) are:

Hilariously while I was driving to the site and back, we were also arranging to sell the power. I got quotes from 4 companies, and agreed a price and signed the documents on my mobile phone at a cafe near the site. I won’t say who I sell it too until its officially on their website (we might get an entry on their map of generators). As for the price? Its not bad. Certainly way higher than when I started this project, but my costs have shot up too, so hopefully its ok. I estimate break even in 13 years, which is kind of insane, but when you look at valuation of stocks, in a way thats a price/earnings ratio of 13, which is actually sort of reasonable? However, I suspect we will see short term rises in energy prices and long term falls, so it really depends on how things work out in terms of govt policy favoring renewables/heat pumps/ EVs and the ability to build out large scale energy supply. Anything could happen. In terms of how competitive the market is, there was a range of prices. The company I chose offered the most, but not by much, and it does look like there is real and genuine competition. I had to sign by 3PM that day to get the quoted offer, as it changes daily, but I chose to lock in that price for a year. In future I might choose longer term locks.

Amusingly, we get paid for the power monthly, which is more frequent than I get for console video games I own the IP to. Even the staid old dinosaur energy industry can pay monthly, within 10 days. Take note, video game publishers!

The next big step will be energizing the site, a day on which I am determined to get drunk afterwards, and then we will have the first few stats to obsess over, and eventually the first actual income for this company of mine. Oh My God. There is a lot of ancillary stuff to do on site, like plant some trees, tidy things up, and some plants have grown too high for the sheep to cope with, so it all needs actually proper mowing once, after which the sheep should take care of keeping the grass down.

Anyway, enjoy this final picture. It is me pointing at one of the two (now inactive) overhead 11,000 volt lines that delayed this project by a year, cost me probably more than my first house, and drove me to actual real tears. Its finally gone, and not a problem. Its about the same thickness as the power cable plugged into this laptop.

Solar Farm: Everything you always wanted to know about power purchase agreements (PPA)

I just had another meeting about the solar farm. We are now talking in very confident and believable terms about the date to actually switch on the farm, which is absolutely amazing after the last fifty billion years oft development. Amazingly, humans continue to exist on Earth and the solar system has not been swallowed up by an expanding star and yet my solar farm may get energized. (Obviously an expanding sun would be, in the short term, great news for PV generation…

This week is an exciting week because the overhead line that initially was supposed to save money and make life easy, but actually ended up causing chaos and delays… is actually being buried this week. This is a 5 day process, because what is involved includes the burying of some new line, recovery of the old line, and the actual proper live connection of the high voltage part of the site (this is the DNO’s territory and problem). This should all be completed by this Friday, which is also the day I am next visiting the site to see how things are. I don’t think THAT much visible will have changed since my last visit, but that was a while ago so its good to have a final walk-around before the next visit which should be switch-on.

Now in theory, as maybe 80% of the site is built out, and the site gets actually connected to high voltage national grid connections on Friday, you might think that we could switch on 80% of the site while we finish the rest, but thats a logistical headache. The removal of the line lets us drill the piles for the last few mounting tables and final inverters, and then connect the last few hundred panels, but all those new panels need connecting to the earthing, and the final inverters need connecting to our switchgear (all at relatively low voltage, about 400V), and doing all of that while the rest of the site is live sounds like hell…

On a huge site, like a 50MWP site, it would be absolutely worth the hassle, because of the opportunity cost of not being connected, but on our site, its just not worth introducing complexity just for literally one month of generation for 80% of a farm in a wet cloudy September…

Anyway, there is still a bunch of stuff to do that you don’t think about, like the tree planting (a condition of our planning application), and a lot of incredibly tedious paperwork to claim REGOs (Renewable generation certificates you get for producing green energy that er traded like a commodity). Honestly if someone like Elon Musk saw the bureaucracy and inefficiency behind the REGO system he would explode, but it has to be done as they are worth about £12/MWH.

The REALLY exciting part though is the arrangement of the power purchase agreement which I expect to sign tomorrow. I will go for either a 1, 2 or 3 year fixed price for each megawatt hour of energy the site produces. The actual calculation is a real paid, because there is the raw traded price per megawatt hour (about £70/MWH) and then the ’embedded benefits’ (about £20/MWH for my site) which are payments for being good enough to generate power where it is needed, and not put a strain on the main transmission network…and then the REGOs (about £12/MWH).

The embedded benefits stuff is interesting. If you think of electricity like traffic, then you have local roads, A roads and then Motorways (highways). As anybody who has built a road will tell you (We did!) the cost per mile goes up a LOT as your road gets bigger. So if generation requires an upgrade to a major transmission line (motorway) its stupidly expensive. If you can generate power that never leaves the local roads, and in fact therefore puts less pressure on even the A roads, then there is value in that, and you get compensated. To put it another way, building a small local solar farm helps supply a rural(ish) community, and puts less pressure on the connections to and from that community. In practice, my energy will certainly never leave Shropshire, and will probably never even leave the local town within Shropshire. I’ve made the job of managing the transmission network easier!

Anyway, for reasons that escape me, it seems that you lock in power purchase agreements for 1-3 years, but the price fluctuates on a DAILY basis, so you have to sign the deal the same day (before 4PM) that you get the quote. So at some point tomorrow I may well make a financial decision that affects my business for a few years. Still, I’m playing the long game here. I might lose money for 15 years then suddenly reap the rewards of madly high prices. Who knows. Doing this stuff is not for the meek. I’ll probably have pics to share on Friday!

Solar Farm update. Even a video!

Is it depressing that I am actually pleasantly surprised that wordpress handles direct uploading and embedding of video clips? It should be a pretty trivial endeavor in 2024, but I’m apparently shocked to find it working :D. Anyway, here is a video taken by some contractors on the site as they worked on the cabling and site substation.

In terms of progress… well not a lot, despite it being HUGELY SUNNY right now, my farm remains unconnected, earning nothing, due to the insane delays and bureaucracy. There is some good news, in that finally the insane list of delays and excuses got exhausted and I was given an actual firm date for when the overhead line (so small you will barely see it on the video) gets taken down and buried. This is the hugely expensive work that has to happen before we can fill in those pesky gaps in the rows of panels, and then actually do the final bits and pieces before the big ‘energisation’ of the farm when it goes live.

That date is <DRUMROLL>

SEPTEMBER 9th.

There is actually a few days of work associated with all this. The schedule looks like this:

  • 9th September – Deliver materials to site
  • 10th September – Install 2 x HV poles ready for shutdown
  • 11th September – make off 2 x 11kv pole terms
  • 12th September – make off any stay and make sure everything is in place ready for shut down
  • 13th September – Shutdown to loop in new substation

So from the 13th September onwards we will be in a hopefully minutely planned and seamless period of work to install the last frames and panels, and wire those up, plus connect the final bits and pieces, final fencing, and so on before we can switch on the site, just in time for mid-October’s total lack of sunshine. Oh the irony. However, that means a switch-on this year is almost guaranteed!

I will definitely be going to the site to see what is going on during that week, probably on the 13th, and obviously I’ll be returning to see it switched on. I might go back in-between those dates as well.

Some actual progress has taken place in the meantime, but its been slow because frankly there has not been any hurry given that the line-move was delayed so much and then there was insistence on a pointless 8 week delay on top of that. We are currently finishing our substation (mostly a switchboard) and the inverter to substation cabling (underground), and then there is something called ‘tails’ that needs doing, and we need to install the meter to read the generation, and also any power we import to run equipment overnight. The only interesting picture I have of all this is these big phat rolls of high capacity power cable:

    So its sort of good news, in that there is progress and then end is in sight. I have not yet signed a deal to sell the energy from the farm (a power-purchase agreement), as its a bit early to do that. Also prices tend to rise as we head towards winter so a late signing probably benefits me. I’ll be considering that around late August/September.

    Something interesting is that lithium-ion battery storage costs continue to fall. I had decided not to add a battery but may be able to revisit the economics of that once everything is running. I’ll definitely want a full years data from generation before I even consider it though.

    Solar farm update. Fencing. Trenching. Lawyers…

    Amazingly this is the first update of the year, and its May. This is absolutely ridiculous beyond words, but I might start getting really ranty and angry if I get drawn into it, but suffice to say that for absolutely zero justifiable reason, nothing dramatic has really happened on the site for months.

    Its all due to paperwork. basically the energy company (the people connecting the farm to the grid, at vast expense, all billed 100% to me) decided that they needed a sub-lease from me to put their substation on the freeholder (farmer’s) land. This is fine. I have a lease agreed over a year ago now with the farmer. They want their substation on my leased plot. Fine. Go for it. They tell me that they will write the lease, and they have proposed a signing agreement of £1.

    Yes £1.

    But ok, whatever, I have basically no say in this. They write the lease, I read it, and agree and sign it within 24 hours. Then we move on. Meanwhile, unconnected to this, I get a nice diagram showing how the farm is wired:

    And then…apparently the energy company are not convinced I have the right to sign a sub lease. they demand to see my lease with the freeholder. I say fine, I send it. They then claim there is no evidence the lease is valid because we didn’t register the lease with the land registry. That means I have to hire a lawyer (for the first time in my life, after 27 years of running a video games company that trades globally), to fill out some paperwork with the land registry. I do this, and it takes weeks, because the lawyers don’t believe who I am and demand identity documents ad-nauseum, despite it being a matter of legal public record that I am the director of the company.

    Oh well…

    Anyway, I do all of this, and they then say that they don’t believe the freeholder is who he says he is either. AFAIK this freeholder has owned the land for decades (probably generations), and lets remember at this point that there is NO DISPUTE about the terms of either lease between any party. They insist on me printing an A3 copy of a map, in color, with my signature on, and physically mailing it to them. I have to find a print shop to do it. I do this. They then want the freeholder to travel physically to a lawyer to prove his identity. There are then other complications which I won’t detail, but at every possible turn, I am delayed, ignored, then handed yet more impossible and ridiculous demands.

    They charge me about £5k in “extra legal costs” associated with the pain of me not personally having recruited another lawyer. This is ridiculous, and you can only begin to imagine my rage. I make multiple angry phone calls and send a battery of very angry emails. Meanwhile, we are heading towards summer, but nobody cares, not the energy company, and certainly none of the many lawyers involved.

    Unrelated, We put a fence up around the site:

    I phone the energy company lawyer to complain, when I’m told some bureaucrats need to physically sign pieces of physical paper that needs to be sent by courier, which might take another week. I insist that if its not done immediately I will physically get in my car, and make a 4 hour drive to their office, pick up the paper myself and fucking drive it to the home of the person who needs to sign it, and sit on their doorstep until they do.

    I think they are finally understanding what I think of this process. Of course meanwhile, we hurtled through the 1.5 degrees barrier which was the tipping point for global catastrophic climate change, and UK farmers start to warn people they cannot grow food now. Nobody seems to give a damn.

    But woohoo, we have dug some trenches and put some ducting in, ready for the AC cabling that goes from the inverters to the site substation, which is MY substation, where all of the AC stuff gets wired together ready to be handed over to the DNO, who then use a transformer and step up the voltage. Here are the very rare pics of actual progress:

    So yeah, there have been no updates because of all this. Words cannot express my anger, despair and frustration at this. Its absolutely insane. Do not ever, ever EVER complain to me that your energy bill is too high!

    I am hoping to eventually get a DATE for when the overhead line is moved, for which I will travel to the site to witness, seeing as though it cost more than my first house. I will exhaustively take photos of this event that I have been trying to arrange for almost 3 years.

    Solar farm 4th site visit: Substations!

    Its been a long time since my last visit to the site, and work stalled for ages due to arguments and analysis regarding earthing. Finally at LONG LAST, that was agreed upon, and we could recommence work. I went up there with a friend yesterday in pretty bad wet weather to see what progress there had been. Hopefully this is the start of the final leg of getting the farm finished and connected. When I was last there, most (85%?) of the panels and frames were installed, and most of the inverters, but that was it. This time there was some more stuff done.

    The most obvious progress on that day was that the DNO (distribution network operator) people were actually on site installing their substation which includes a transformer. There will eventually be two substations, one for the DNO and one for the site, which will contain the meter and ‘switchgear’. The substation is kind of built on site, out of 4 wall panels and a roof. Here are some cool pics:

    Thats the roof being lowered onto the DNO substation, which contains their transformer and other stuff,

    A shot taken from my drone (in high winds!) showing the location of stuff. The hole at the bottom of the image, filled with stones is the base for the site substation, which will be built any day now, with our switchgear, and eventually meter. This is where all the underground AC cables from each inverter will meet.

    Another drone shot of some of the panels. It was windy and I wasn’t able to get a nice clear image of all of them. The gaps between them in the middle here are where the overhead high voltage cable goes. Once that cable comes down, those gaps will be filled with more panels so there will be nice long uninterrupted lines. Those dotted white lines are actually deposits of snow that have slid off the panels a few days earlier.

    We also have a lot of ditches. There are ditches that have been dug for a new underground high voltage line (we queried why this had to be underground, as it costs us WAY more, but were basically just told we had no choice… grrr.), and there are lots of ditches (a ridiculous amount it seemed to me…) for the earthing for the site. The earthing as been a huge, monumental pain in the ass.

    So in a sense, this looks like good news right? Not really. There are two huge problems still standing between me and this ever getting finished. The first one is an eight week delay that is being insisted upon before the power can be BRIEFLY cut off to 4 houses so we can remove the overhead line. This is beyond insane, and there is ZERO (I checked) legislative need for this, but as with anything relating to a DNO, you have zero choice. (private monopolies suck). That 8 week delay has not even started yet, because it is, itself being delayed because of lawyers. Yes. Lawyers. FFS.

    But the SECOND big problem and nightmare is importing energy. We need (In theory) energy supplied TO the site in order to power the CCTV at night, and I suspect to also actually run the meter itself. This sounds trivial but ALL of the big six energy companies I talked to were incompetent, clueless buffoons who couldn’t even understand what I was asking for. The few clued-up energy companies who did offer a quote to supply energy are quoting a standing charge of £55 a day. Yes thats pounds, not pence. The actual energy usage will be under £50p a day. Yes, I have checked. Yes, this is absolutely totally and utterly insane. There are other charges added too which mean the bill would be about £28,000 a year to run 4 CCTV cameras.

    Now you might ask “how the fuck can the standing charge for a business at location X be over a hundred times more than the standing charge for a house at X?”. You might also ask why the fuck the DNO can not provide the power. You might also ask why the fucking fuck we cannot use the power we generated ON SITE and use a tiny backup battery to ‘buffer’ some of it. These are all valid questions, and its driving me insane. Let me explain a bit…

    There are two types of electricity meter. A standard domestic one, and whats called half-hourly meters. These are for big businesses and stuff like my farm. They have a different system of standing charges, which are calculated on something called a line-loss factor (LLF). Basically companies stuff power into a line, and meter whats taken out, and note the difference. Remote locations will have high LLFs, as a significant amount of power is lost in transmission (also theft).

    In a remote location, a high LLF will mean a high standing charge. Initially we were quoted £186 PER DAY. Now its down to £55 a day, because we had to remind them it was now LV not HV. No, they had not even made that change in their database. Anyway, this is irrelevant, because the whole idea of a LLF affecting a STANDING charge is nuts. I don’t care if 50% of the power on that line is wasted, thats fine, bill me PER UNIT OF POWER 50% higher, I understand. And also…I don’t care because I’ll be importing a trivial, trivial amount of power… but thats not how the UK energy pricing system works. Its for some boneheaded, stupid, illogical and insane reason being placed as a lump sum on the standing charge.

    This is beyond stupid. If the LLF is 50% (stupidly high example), and I place an aluminum smelting plant in the Scottish highlands, then I will laugh at your £50/day charge as I demand 10MWH of power every day and you have to stick 20MWH on the line for me to get it. As a large, wasteful, remote high energy consumer, I laugh all the way to the bank. But a tiny, energy efficient company in exactly the same location will pay between 50 and 100x as much for their energy as they should. Absolutely bonkers, insane crazy nonsense. And nobody in the industry gives a damn, or shows any enthusiasm to change it.

    Welcome to reason #349 why your UK energy bills are so high, but you can expect the daily mail to blame it on wind turbines or something…

    Anyway… there is progress. Its super slow, and unbelievably frustrating and is driving me mad, but there is small progress. One day when all this is done I will celebrate by drinking so much alcohol and eating so many cakes I pass out.