The far end of a yard almost never has mains, and the two things people actually want there are light on a winter morning and a camera on the tack room door. Both are small loads and solar handles them easily. The difficulty is timing - you need the light most in December, which is precisely when a panel gives you least. That is a battery problem, not a panel problem, and getting it the wrong way round is the most common and most expensive mistake at a yard.
What a yard actually needs
Strip out the wishful thinking and the list is short. Lighting in the stable block and the tack room. A camera, because tack theft is a real and organised problem. Somewhere to charge clippers. Often a radio. Occasionally a small water pump.
| Load | Draw | Realistic daily use | Energy a day |
|---|---|---|---|
| LED strip lighting, four fittings | ~40W | 2.5 hours | ~100Wh |
| Wifi security camera | ~6W | Continuous | ~145Wh |
| Charging clippers | ~30W | Occasional | ~30Wh |
| Radio | ~8W | 4 hours | ~32Wh |
| Everything above | — | — | ~300Wh |
Three hundred watt-hours a day is a small number. A 100Ah lithium battery holds roughly 1,280Wh, so a fully charged one runs the whole yard for four days with no sun at all. That is the shape of the problem, and it is a comfortable one.
The winter problem, which is the whole problem
Here is the tension nobody selling kits will put in writing. You want yard lights at half past six on a December morning and again at five in the afternoon. Both are in darkness. The panel contributes nothing at either moment, and not much in between.
A 120W panel in southern England produces something like 400 to 500Wh on a bright June day. On a heavily overcast December day it might manage 20 to 30Wh. That is not a rounding error, it is a factor of twenty, and it lands exactly when your usage peaks.
The instinct is to fit a bigger panel. It barely helps, because the limit in December is daylight hours rather than panel area. What carries you through a dull fortnight is stored energy. Given the choice between doubling the panel and doubling the battery, double the battery every time.
There is a pricing quirk that makes this easy. A 50Ah lithium battery costs about £150. A 100Ah costs about £153. Three pounds for twice the capacity - so there is no sensible reason to buy the smaller one, and we have not recommended it below.
What solar will not do at a yard
Trough heaters are out. A submersible trough heater draws 100 to 300W and runs for hours when it is cold, which is a daily load of one to three kilowatt-hours. That is four to ten times everything else on the yard combined, demanded in the season when generation collapses. No proportionate solar setup runs one. Use an insulated trough cover, a float, or a mains supply.
Solariums and heat lamps are out for the same reason, only more so.
Kettles are borderline. A kettle is a big draw for a short time, so the daily total is modest - roughly 40Wh a boil. Two or three brews a day is fine with a 100Ah battery and a pure sine inverter. A dozen is not.
If you genuinely need heat at the yard, the honest answer is a mains supply, and the same logic applies as in our garden office guide - solar runs the electronics, not the heating.
Cameras, and why they change the sums
Tack theft is the reason a lot of yards look at power in the first place, and a camera is the one load that runs twenty-four hours a day. At 6W continuous that is about 145Wh daily, which is roughly half your total consumption and, unlike the lights, it does not stop when you go home.
Two practical points. First, check signal before you check power - a camera at the far end of a yard is useless without wifi or a mobile signal, and that is the constraint far more often than electricity is. Second, a camera that keeps working through a week of grey weather is worth more than one with a higher resolution, so size the battery for continuous draw rather than average draw.
Sizing it, in one table
| What you want | Panel | Battery | Inverter | Roughly |
|---|---|---|---|---|
| Lights only, summer use | 100-120W | 50-100Ah | None needed | ~£265 |
| Lights and a camera, year-round | 120W | 100Ah | Optional | ~£345 |
| Above plus mains sockets | 120W | 100Ah | 600W | ~£434 |
| Large yard, several buildings | 240W+ | 280Ah | 1000W | ~£645 |
Most yards land on the second row. Note that lighting and a camera can both run directly on 12V, which means you can skip the inverter entirely and save both the cost and the ten to twenty watts it burns simply being switched on.
Recommended kit
Everything below was confirmed in stock on Amazon UK when this guide was written.
DCHOUSE 12V 100Ah LiFePO4
The heart of a yard setup, and the component that decides whether the lights work in the third week of a grey January. Low-temperature charge protection matters here more than almost anywhere - an unheated stable block goes below freezing, and charging lithium below zero damages it permanently. At three pounds more than the 50Ah version there is no argument for going smaller.
amazon Check Price on Amazon →Renogy 120W ShadowFlux Anti-Shading Panel
A rigid panel for permanent mounting on a stable roof or a free-standing frame. The anti-shading design earns its keep at a yard, where a panel is likely to catch the shadow of a tree, a barn roof or a gutter at some point in the day - conventional panels lose disproportionate output when one part is shaded.
amazon Check Price on Amazon →Renogy Rover 20A MPPT
MPPT rather than the cheaper PWM sort, which matters in the weak diffuse light of a British winter - exactly when you need every watt. The built-in Bluetooth means you can check the battery state from your phone without walking down to the tack room in the dark.
amazon Check Price on Amazon →Giandel 600W Pure Sine Wave Inverter
Only worth adding if you need a normal three-pin socket for clippers, a kettle or a power tool. Pure sine matters for anything with a motor. The wired remote is genuinely useful here, because you will want it switched off most of the time - an idling inverter quietly eats more than your lighting does.
amazon Check Price on Amazon →Summary
- A yard needs about 300Wh a day for lights, a camera, a radio and charging
- A 120W panel and a 100Ah battery covers that year-round for roughly £345
- Buy battery rather than panel. December is limited by daylight hours, not panel size
- The 50Ah battery costs £150 and the 100Ah costs £153 - there is no reason to buy the small one
- Trough heaters and solariums are not solar jobs. Kilowatt loads in the darkest months
- Lighting and cameras run on 12V directly - skip the inverter and save its idle draw
- Check wifi signal before buying a camera; it fails more often than the power does
If you also tow, the same batteries and panels do a job in a lorry - our horsebox solar guide covers the differences, chiefly that everything has to survive being driven around. And if you want mains sockets at the yard without a mains supply, building a power station is the cheaper route above about two kilowatt-hours.
For paddock fencing away from the yard, our guide to solar electric fence energisers compares all-in-one units with a 12V battery setup. And if you only need a light in a feed room for a few minutes at a time, a self-contained solar shed light is a cheaper start.
Frequently Asked Questions
Can solar power a stable block with no mains supply?
Comfortably, for the things a yard actually needs - LED lighting, a security camera, a radio and charging clippers. A 120W panel with a 100Ah lithium battery covers all of that year-round. What it will not do is heat water or run a solarium, because those are kilowatt loads rather than the tens of watts everything else draws.
Will solar run a water trough heater?
No, and this is the single most common mistake. A trough heater draws 100 to 300W continuously through the coldest months, which is when solar generates least. Running one from a battery would need a system several times the size of everything else put together. Trough heaters are a mains job or a job for a thermal cover.
How do I power a CCTV camera at a stable with no electricity?
A small solar setup runs one easily. A typical wifi camera draws 4 to 8W, which is under 200Wh a day even running continuously. The bigger question is usually signal rather than power - check you have wifi or mobile coverage at the yard before buying the camera.
What size solar panel do I need for a stable?
For lighting and a camera, 100 to 120W is plenty. Going bigger rarely helps in winter because the limiting factor is daylight hours rather than panel size. Spend the extra on battery capacity instead, which is what actually carries you through a dark week.
Will it work in winter when I need the lights most?
Only if you size the battery for it. A 120W panel might make 20 to 30Wh on a heavily overcast December day, against a lighting and camera load of perhaps 150Wh. That means running down the battery for days at a time, which a 100Ah battery absorbs and a 50Ah one does not.
Do I need permission to fit solar panels at a livery yard?
If you own the yard, generally not for a small panel on a stable roof or a free-standing frame. If you are on livery, you need the yard owner's agreement, and anything screwed to their building is their decision. A free-standing frame you can take with you avoids the argument entirely.