Depot charging simply means charging your vehicles at your own base — the yard, garage or depot they return to each day — rather than sending drivers to public charging stations.

For a fleet it’s almost always the right approach. You control the schedule, so vehicles fill up overnight on cheap electricity and are ready each morning. You avoid queues and the high prices of public rapid chargers. And because your vehicles follow predictable routes back to a known location, charging becomes a routine part of the depot, like refuelling used to be — just quieter, cheaper and done while everyone’s asleep.

The work is in the setup: getting enough power to the site, installing the right chargers, and adding software to charge cleverly. That’s exactly what this guide walks you through.

Public charging is what you’d use on the road — pull into a service station, plug into a rapid charger, pay a premium price per unit, and leave. It’s fast but expensive, and you’re sharing chargers with everyone else.

Depot charging happens at your own site while vehicles are parked anyway, usually overnight. Because you buy electricity on a business tariff and charge in the cheap hours, the cost per mile can be a fraction of public charging. You also never queue.

Most fleets do the vast majority of charging at the depot and only occasionally top up in public — the reverse of what people expect. Getting your depot charging right is what makes the numbers work.

The great majority of depots can be electrified — it’s usually a question of how much work is involved, not whether it’s possible.

Two things decide how easy it’ll be. First, how much electrical power your site can get: sites with a decent existing supply, or room for an upgrade, have an easier path. Second, how long your vehicles sit still: vehicles parked overnight for many hours are ideal, because they can charge slowly and cheaply.

If your vehicles return to base most nights and your site has (or can get) three-phase power, you’re in good shape. The Readiness self-assessment on this site gives you a quick first read, and the Grid Capacity Estimator helps you sense-check the power side.

It’s easy to feel swamped, but the journey follows the same order every time, and the first two steps matter most.

Start by understanding how your vehicles are actually used — how far they go, when they return, and how long they sit before their next job. This tells you how much energy you need and how much time you have to deliver it. Then find out how much electrical power your site has today and whether it’s enough. These two answers shape every later decision about chargers, cost and funding.

A sensible first move is to run the Readiness self-assessment and the Grid Capacity Estimator on this site, then read the electrification-journey guide. That gives you the lay of the land before you spend anything or call a single supplier.

There’s no single answer, because it depends heavily on your site’s power. A depot that already has spare electrical capacity can be up and running in a matter of months. A depot that needs a significant grid upgrade can take a year or more, because that work sits with your network operator and can involve planning, digging and new equipment.

The practical lesson is to start the power conversation with your DNO as early as possible — often before you’ve finalised anything else — because it’s the least predictable and usually the longest part. Chargers and software can be installed relatively quickly once the power is sorted.

Phasing helps too: many operators electrify part of the fleet first, learn from it, and expand — rather than waiting to do everything at once.

Almost nobody electrifies everything overnight, and you shouldn’t feel you have to. A phased approach spreads the cost, lets you learn on a small scale, and avoids betting the whole operation on a brand-new way of working.

A common pattern is to start with the vehicles that suit electric best — predictable routes, comfortably within range, back at the depot each night — prove the model, then expand. It’s wise, though, to plan the site’s power and cabling for where you want to end up, even if you install only some chargers now. Digging trenches once for future capacity is far cheaper than doing it repeatedly.

So: phase the vehicles and chargers, but future-proof the groundwork.

AC charging is slower — typically up to 22 kW — and uses cheaper equipment. It’s perfect for vehicles that sit for hours, which is most depot vehicles overnight. Give a van eight to twelve hours on an AC charger and it’ll be full by morning, gently and inexpensively.

DC charging (also called rapid charging) is faster and more powerful — from 50 kW to several hundred kW — but the chargers cost more and draw big spikes of power from your grid connection. DC earns its place where vehicles can’t sit around: tight double-shift operations or a mid-day top-up.

Most depots use mainly AC for the overnight fleet and add a few DC chargers only where the timetable demands them. Matching charger type to how long vehicles actually dwell is one of the biggest cost decisions you’ll make.

It’s tempting to assume one charger per vehicle, but that’s often unnecessary and expensive. What matters is how long vehicles sit and how much energy they need in that window.

If vehicles are parked all night, several can share fewer chargers by charging in sequence, and smart charging can manage this automatically. If vehicles come and go through the day with short stops, you may need more chargers, or faster ones. The honest answer comes from looking at your vehicles’ real schedules — their duty cycles — rather than a rule of thumb.

Start from the timetable: when does each vehicle arrive, when must it leave, and how much charge does it need in between. That analysis usually reveals you need fewer chargers than a one-to-one count suggests.

Charging speed depends on the charger’s power and the vehicle’s battery size, but the more useful question is: will it be full when I need it?

A vehicle parked overnight has a long window, so even a modest charger fills it comfortably by morning. A rough feel: an 11 kW AC charger adds around 11 kWh an hour, so over ten hours it delivers about 110 kWh — enough to fully charge most vans several times over. Only when the parked window is short do you need faster, more powerful (and pricier) chargers.

So speed is really about matching charger power to available time. Long dwell means slow, cheap charging is fine; short dwell means you pay for speed.

A DNO — Distribution Network Operator — is the company that owns and runs the electricity network in your area. There’s one for each region (for example UK Power Networks, National Grid Electricity Distribution, or SP Energy Networks), and you don’t get to choose yours; it’s set by your location.

They matter because they control how much power your site is allowed to draw. If you want to add significant charging, you’ll likely need to confirm or increase your site’s capacity, and only the DNO can grant that. They are separate from your energy supplier, who sells you the electricity itself.

Engaging your DNO early is the most important thing you can do for your timeline, because any network upgrade they need to do is usually the longest and least predictable part of the whole project.

There are three levels of answer. The quick one: look at your main fuse rating and your electricity bill’s agreed capacity (in kVA) to get a rough ceiling on how much power the site can draw today. The estimate: add up the power your planned chargers would need at peak and compare it against that ceiling, remembering everything else on site also uses some. The definitive one: your DNO can confirm exactly what capacity is available at your connection.

The Grid Capacity Estimator on this site helps with the middle step — it turns your charger count and power into an approximate kVA figure and shows whether it’s likely to fit. Treat it as a first read to take into your DNO conversation, not a final answer.

This is common, and it isn’t the end of the road. You’ve got two broad options, and they’re often combined.

The first is to make your charging fit the power you have, using smart charging and load management so vehicles take turns rather than all drawing full power at once. Adding an on-site battery can also let you draw power gently over many hours and release it in bursts. Surprisingly often, this avoids an upgrade entirely.

The second is to ask your DNO to increase your capacity — a grid upgrade. This can be quick and cheap, or slow and costly, depending on the local network. Because upgrades are unpredictable, most operators try the clever-charging route first and only upgrade for the capacity they genuinely can’t manage around.

It varies enormously. A small change within your existing capacity might be sorted in weeks. A significant upgrade — a bigger cable, a new transformer, or a new substation — can take many months, occasionally longer, because it involves the DNO’s design work, possible planning permissions, and physical construction.

Because you can’t easily speed the DNO up, the winning move is to start the conversation as early as possible, ideally before you’ve committed to vehicles or chargers. Getting an early indication of what’s available, and what an upgrade would cost and take, lets you plan everything else around it.

Flexible connection options (sometimes called ANM) can also get you connected sooner, in exchange for occasional automatic limits at busy times — often a good trade for overnight charging.

Honestly, this is the hardest cost to predict, because it depends entirely on the state of the local network near your site. If there’s spare capacity nearby, an upgrade might be relatively minor. If the network needs reinforcing — new cables, a transformer, or a substation — costs can run into the tens or even hundreds of thousands of pounds.

That uncertainty is exactly why the DNO conversation comes first: a budget estimate from them turns a wild unknown into a real planning number. It’s also why smart charging and batteries are so valuable — by reducing the peak power you need, they can shrink or remove the upgrade altogether.

One important note: current grant funding covers chargepoints and civil works, but not the DNO’s grid reinforcement itself — so budget for it separately.

Electricity comes into a site as either single-phase (like a home) or three-phase (like most commercial premises). Three-phase delivers far more power, which is why almost any depot doing meaningful vehicle charging needs it.

The good news is that many commercial and industrial sites already have a three-phase supply, so it may simply be a matter of confirming it. If your site only has single-phase, upgrading to three-phase is a job for your DNO and is a normal early step.

You don’t need to understand the electrical theory — just check what your site has as one of your first actions, because it sets the ceiling on what’s achievable without a bigger connection.

Frequently, yes — and this is one of the most valuable things to understand. You don’t necessarily need enough grid capacity for every charger to run flat-out at once, because they rarely do in practice.

Load management software shares your available power across the chargers, throttling or pausing some so the total never exceeds your connection limit. Vehicles simply take turns drawing full power. Add an on-site battery, which stores cheap energy over many hours and releases it in bursts, and you can support even more charging on the same connection.

The result is that a modest grid connection can serve a surprisingly large charging yard. It’s usually far cheaper to invest in smart charging and storage than to pay for a big grid upgrade — so this is one of the first levers to pull.

To assess your connection, a DNO typically wants to know where the site is, what supply it has now (your MPAN and existing capacity, both on your electricity bill), and how much extra power you expect to need — your anticipated peak load, expressed in kVA.

That last figure is where an estimate of your charging plans comes in: how many chargers, at what power, and how simultaneously they’ll run. The Grid Capacity Estimator on this site helps you produce a sensible number to take to them.

You don’t need everything perfect before you make contact — an early, approximate enquiry is genuinely useful and starts the clock on any lead-time. A consultant or your installer can help package the application if it’s a large or complex site.

Smart charging is software that takes control of when and how fast each vehicle charges, instead of everything simply charging at full power the moment it’s plugged in.

It does three big jobs. It shifts charging into the cheapest hours, usually overnight, to cut your energy bill. It keeps your total power draw within your grid connection limit, so you don’t need as big a connection. And it makes sure each vehicle is charged enough by the time it’s due out, prioritising the ones leaving soonest.

In short, it turns a yard full of chargers into a coordinated system. It’s often the difference between needing an expensive grid upgrade and comfortably fitting within the power you already have — which is why it’s considered essential, not optional, for most depots.

Load management is the part of smart charging that acts like a traffic controller for electricity. It watches how much power all your chargers are using and shares out your available capacity so the total never exceeds what your grid connection allows.

Why it matters: without it, every charger you add needs its own slice of grid capacity, and you quickly hit your limit or face an upgrade. With it, chargers take turns drawing full power, so many more can run off the same connection. A van that’s nearly full is throttled back so a nearly-empty one can charge; nothing trips the main limit.

This is one of the cheapest ways to expand charging without expensive grid works, which is why it’s central to almost every depot design.

It’s a fair worry, but a properly configured system does the opposite: it makes sure vehicles are ready when you need them, while saving money along the way.

You tell the system each vehicle’s departure time and how much charge it needs. It then works backwards, prioritising vehicles leaving soonest and those with the least charge, and fills any spare time with the cheapest energy. Vehicles with long overnight windows are charged gently in the cheap hours; a vehicle leaving early is bumped up the queue automatically.

The result is usually both cheaper and more reliable than plugging everything in and hoping. The key is setting departure times and charge targets correctly, and monitoring uptime so faults are caught early.

An Energy Management System is the overall brain of a more advanced depot — the layer that coordinates everything to do with energy, not just the chargers.

Once a site has solar panels, a battery, and lots of chargers, someone has to make constant decisions: use solar power now, store some in the battery, throttle that charger, buy from the grid because it’s momentarily cheap, hold back because it’s peak time. An EMS makes those decisions automatically, second by second, to keep your costs down and stay within your limits.

A simple depot with only overnight AC chargers may not need a full EMS at first — smart charging is enough. But as you add storage and generation, an EMS is what ties it all together into one efficient system.

The headline is that charging is usually much cheaper than fuelling with diesel — but the exact figure depends on your electricity tariff and how cleverly you charge.

The sum is straightforward: the price you pay per unit of electricity (pence per kWh) divided by how far your vehicle travels per unit (miles per kWh). As a rough feel, an electric van doing three to four miles per kWh, charging at an off-peak rate, might spend well under ten pence a mile on energy — against often 25 to 35 pence a mile for diesel.

The biggest variable is timing. Charging overnight on a time-of-use tariff can roughly halve the cost compared with charging blindly at peak times. The Running-Cost Comparison tool on this site lets you plug in your own numbers to see the difference for your fleet.

A time-of-use tariff means the price you pay for electricity changes depending on the time of day. It’s cheapest when overall demand is low — typically overnight — and most expensive during busy peak periods, usually late afternoon and early evening.

For a depot this is a gift, because your vehicles are usually parked overnight anyway. By charging in the cheap window, you buy your energy at the lowest rates. It’s the single biggest lever on your charging cost.

To benefit you generally need a half-hourly meter (standard on larger sites) so your usage is recorded by time, and smart charging to automatically move charging into the cheap hours. Together they turn the parked overnight fleet into a cost advantage.

On a time-of-use tariff, the cheapest electricity is almost always overnight, when national demand is lowest. The exact hours depend on your specific tariff, but the off-peak window typically falls in the small hours of the morning.

The expensive time to avoid is the peak, usually late afternoon into early evening, when demand across the country is highest. Charging then costs more per unit and can also attract higher network charges.

Since most depot vehicles sit still overnight, you’re perfectly placed to charge in the cheap window — you just need smart charging to shift the load there automatically, rather than relying on drivers or plugging in at the wrong moment. It’s a rare case where the cheapest option is also the most convenient.

Alongside the price of the electricity you use, business bills carry some fixed costs worth understanding.

A standing charge is a daily fee just for being connected — you pay it regardless of how much power you use, a bit like line rental. A capacity charge (or available-capacity charge) is based on the maximum power you’ve reserved with the network in kVA, whether or not you draw it all.

These matter for one practical reason: over-sizing your connection means paying more of these fixed costs month after month for headroom you never touch. So there’s a balance to strike — enough capacity to charge reliably, but not a wastefully large reservation. Getting this sizing right is part of good depot design and can save meaningful money over the years.

DUoS stands for Distribution Use of System — charges for using the local electricity network that are built into your bill. You don’t pay them as a separate invoice; they’re wrapped into your unit rates or itemised on business bills.

The useful thing to know is that DUoS charges vary by time of day, mirroring demand: they’re higher during busy peak periods and lower overnight. So when you shift charging into the cheap overnight window, you’re not only paying less for the energy itself — you’re also paying less in these network charges.

It’s another reason the overnight, smart-charging approach wins: it stacks up energy savings and network-charge savings at the same time. You don’t need to manage DUoS directly, but it’s part of why timing your charging matters so much.

Your electricity bill will certainly go up — you’re now fuelling vehicles with it. But that’s the wrong bill to look at in isolation. The right comparison is your total energy-and-fuel spend before and after.

What’s really happening is that a large diesel bill is being swapped for a smaller electricity bill. Because electricity charged off-peak is so much cheaper per mile than diesel, the new electricity cost is typically well below the diesel cost it replaces. Your electricity line grows; your overall fuel spend shrinks.

The trap is judging the project by the electricity bill alone and getting a fright. Always weigh it against the diesel you’re no longer buying — and factor in lower maintenance costs too. The Running-Cost Comparison tool shows both sides side by side.

In most cases, yes — but you have to look at the whole life of the vehicle, not just the price on day one.

An electric vehicle typically costs more to buy, but it’s cheaper to run: electricity charged off-peak costs far less per mile than diesel, and electric drivetrains have fewer moving parts, so servicing and maintenance bills tend to be lower. Over several years those savings usually more than repay the higher purchase price. This whole-life view is called total cost of ownership, and it’s where electric generally wins.

The result varies by vehicle and usage — high-mileage vehicles that charge cheaply overnight benefit most. The honest way to check is to model your own numbers, which the Running-Cost Comparison tool and the TCO guide on this site help you do.

Total cost of ownership is the complete cost of running a vehicle over its whole life, rather than just what it costs to buy. It adds up the purchase price, the energy or fuel it uses, servicing and maintenance, and other running costs, across the years you’ll keep it.

It matters because a diesel vehicle can look cheaper at purchase yet cost far more over time through expensive fuel and heavier maintenance. An electric vehicle flips that: more upfront, less to run. TCO is the fair way to compare them, and it’s usually the argument that wins over a finance team.

When you build a business case, TCO is the number to lead with — it captures the real economics of the switch rather than the misleading headline price.

Payback is how long it takes for your running-cost savings to repay the higher upfront cost of going electric. After that point, the savings are money in your pocket.

The maths is roughly the extra upfront cost divided by your annual saving on fuel and maintenance. So the more miles a vehicle does — and the cheaper you charge it — the faster it pays back. High-mileage vehicles charging off-peak can pay back in a few years; light-use vehicles take longer.

Grants shorten payback directly by cutting the upfront cost. The Depot Charging Scheme covering a share of your chargepoint and civil costs, for instance, brings the payback point noticeably closer. Model your own figures to get a realistic number for your fleet rather than relying on a general rule.

The upfront cost of electrifying a depot breaks into a few buckets. There are the chargers themselves; the cabling and civil works to install them (trenching, ducting, groundworks); any grid connection upgrade your DNO requires; the smart-charging or energy-management software; and, separately, the electric vehicles.

The most variable and least predictable item is the grid upgrade, which is why you get a DNO estimate early. The civil works can also be significant, so it pays to plan charger locations well and future-proof ducting while the ground is open.

Grants offset a meaningful chunk of the infrastructure cost. The Depot Charging Scheme, for example, covers a share of eligible chargepoint and civil works — though not the grid reinforcement or the vehicles — so map your budget against what each grant does and doesn’t fund.

A convincing business case reframes the decision from ‘this costs more upfront’ to ‘this costs less overall’. The spine of it is total cost of ownership: compare the whole-life cost of the electric option against carrying on with diesel, including fuel, maintenance and expected price trends.

Then strengthen it with the levers that improve the numbers: available grants that cut the upfront cost, off-peak charging that minimises running cost, and any resilience or sustainability goals the switch supports. Present a clear payback period and be transparent about assumptions, especially electricity price and mileage.

Finance teams respond to a like-for-like comparison against the status quo, not to enthusiasm for the technology. The Running-Cost Comparison and TCO tools on this site give you defensible figures to build that case on.

The Depot Charging Scheme is a UK government grant that helps fleet operators pay for the cost of installing charging at their own depots. It’s a £170 million programme running from 2026 to 2030, delivered through timed application windows rather than being open all the time.

It’s aimed squarely at organisations that run vehicles from a depot and want to electrify. In the first window it covered 70% of eligible chargepoint and civil-works costs, up to a cap of £1 million per organisation. Later windows run on broadly similar lines, with the exact terms confirmed each time.

Because it opens and closes in windows, being application-ready — with your plans, quotes and site details in order — before a window opens is worth real money. The Funding tracker on this site keeps the current status and dates up to date.

For the Depot Charging Scheme’s first window, the grant covered 70% of your eligible costs — the chargepoints and the civil works to install them — up to a maximum of £1 million per organisation, across all your sites combined.

So if your eligible works came to, say, £200,000, the grant could contribute up to £140,000, with you funding the rest. The cap applies at the organisation level, not per site, so a business with several depots shares the same ceiling.

Later windows are expected to follow similar principles, but the exact percentage and cap are confirmed for each window, so always check the current terms before you plan around a specific figure. The Funding tracker on this site reflects the latest confirmed details.

The Depot Charging Scheme is focused on the charging infrastructure itself. It covers eligible chargepoints and the civil works needed to install them — the trenching, ducting, cabling and groundworks that get power to the chargers.

Just as important is what it doesn’t cover. It doesn’t pay for the electric vehicles themselves, and it doesn’t cover your DNO’s grid reinforcement or connection upgrade. Whether related items like solar panels or battery storage qualify hasn’t been confirmed, so treat those as outside the grant unless official guidance says otherwise.

That scope shapes your budgeting: lean on the grant for chargers and civils, but plan to fund the grid upgrade and the vehicles through other means. Always check the latest official eligibility rules, as scheme terms can be refined between windows.

The scheme is aimed at organisations that operate vehicles from a depot in the UK. In broad terms, eligibility in the first window meant being a UK-registered organisation that owns or leases one or more depots, operates at least one battery-electric van, HGV or coach (or has one on order), and has been trading for at least a year.

A wide range of organisations qualify — fleet operators, local authorities, and other bodies running commercial vehicles. Applications are generally limited to one per organisation, covering multiple sites under the single cap.

Because the precise criteria can be refined for each window, the safe step is to check the current official eligibility guidance before you invest time in an application. The Funding tracker on this site links through to the authoritative source.

The scheme runs in windows rather than being permanently open. The first window ran in spring 2026. A second window was expected to open around late October 2026, with its exact dates and terms confirmed closer to the time.

Because windows open and close — and can close early if funds are fully allocated — timing matters. The operators who succeed are the ones who are application-ready before a window opens: site details gathered, quotes obtained, and plans in place, so they can apply promptly rather than scrambling.

Dates do shift, so rather than relying on a fixed figure here, check the Funding tracker on this site, which is kept current against the official source and can alert you when a window is approaching.

This trips a lot of people up, so it’s worth being clear. The Depot Charging Scheme covers chargepoints and their civil works. It does not cover the grid reinforcement or connection upgrade your DNO might require — that’s a separate cost you’ll need to fund yourself.

As for solar panels and battery storage, their eligibility under the scheme hasn’t been confirmed, so the safe assumption is that they sit outside it unless official guidance states otherwise.

The practical takeaway: build your budget expecting the grant to help with chargers and civils only, and plan to fund grid works, solar and storage through other routes. Because scheme terms can be refined between windows, always confirm the current eligibility list before finalising your funding plan.

You apply through the official government route when a window is open — the Funding tracker on this site links to the authoritative page. The application itself asks about your organisation, your site, and the charging works you’re funding.

The real work is preparation, done before the window opens. Get your site and supply details together (including your MPAN and existing capacity), obtain quotes for the chargepoints and civil works, sketch out your charger plan, and confirm your eligibility against the current criteria. Windows can close early once funds are committed, so being ready to apply promptly is a genuine advantage.

For larger or more complex sites, an experienced consultant or installer can help package the application — but much of the groundwork is straightforward and worth starting now, whatever the window dates turn out to be.

A battery energy storage system, or BESS, is a large battery installed at your depot — quite separate from the batteries in your vehicles. It stores electricity so you can use it at a better time.

In a depot, it acts as a buffer between your grid connection and your chargers. It can fill up gently over many hours — overnight when power is cheap, or from your solar panels during the day — and then release that stored energy in a burst when lots of vehicles need charging. This lets you charge more vehicles than your grid connection alone could support, and buy energy when it’s cheapest.

Not every depot needs one from day one, but a BESS becomes valuable as your charging demand grows, especially where a grid upgrade would otherwise be costly or slow.

Not necessarily. Plenty of depots run perfectly well on smart charging alone, especially where vehicles sit overnight and there’s enough grid capacity to fill them gently.

A battery earns its place in specific situations: when your grid connection is too small for your peak charging need and an upgrade would be expensive or slow; when you want to store cheap overnight or solar energy to use at pricier times; or when you need extra resilience against power interruptions. In those cases a battery can be cheaper than reinforcing the grid, and it opens up extra savings and income opportunities.

So the question isn’t ‘battery or not’ in the abstract — it’s whether a battery solves a specific problem your site has. Model your grid limits and costs first; the need for storage usually becomes obvious from there.

Yes, this is one of the main reasons depots install batteries. The problem a grid upgrade solves is peak power — the brief moments when many chargers want full power at once and exceed your connection limit. A battery tackles that peak directly.

Instead of drawing a big spike from the grid, the battery charges itself gently over many hours, staying well within your connection, then discharges to cover the peak when charging demand surges. Your grid draw stays flat and modest, even though the chargers are delivering bursts of power.

Because grid reinforcement can be expensive and slow — and isn’t covered by current grant funding — using a battery to sidestep it can be both cheaper and faster. It’s worth modelling a battery-plus-smart-charging option before committing to an upgrade.

Solar can be a strong addition, but its value depends on being able to use the power it generates. Panels produce electricity during daylight, so they pay off best when something on site can soak that up — daytime charging, other site loads, or a battery to store the surplus for later.

If your vehicles only charge overnight and there’s nothing to use daytime solar, the panels’ output is worth much less, because exporting spare power to the grid earns very little. Pair solar with a battery or daytime demand, though, and it can meaningfully cut both your energy bills and your carbon footprint.

So it’s rarely a bad idea, but it’s most powerful as part of a joined-up setup rather than a standalone add-on. Weigh it alongside your charging pattern and whether storage is on the cards.

You can use solar to help power charging while the sun is up, but it can’t be your only source, because most depot charging happens overnight when the panels produce nothing.

During the day, solar can directly feed any vehicles or equipment that are charging or running, cutting what you draw from the grid. To use that solar energy at night, you’d need a battery to store the daytime surplus and release it after dark. Without storage, the overnight fleet is charged from the grid regardless of how many panels you have.

So think of solar as a valuable contributor rather than a complete solution: it trims daytime costs on its own, and unlocks more value when paired with a battery. The right mix depends on when your vehicles actually charge.

Potentially, yes — though usually as a modest extra rather than a main event. Because a depot’s charging can often be nudged earlier or later without anyone noticing, that flexibility has value to the organisations that keep the national grid balanced.

Through flexibility or demand-side-response programmes, you can be paid to shift or briefly pause charging at certain times when the grid is stressed. A battery adds more options, since it can absorb or release power on cue. These payments won’t transform your business case on their own, but they’re a useful bonus once you’ve got smart charging or storage in place anyway.

Treat this as upside to explore after the core setup is working, not a reason to over-invest upfront. The infrastructure that makes charging cheap is the same infrastructure that makes flexibility income possible.

Vehicle-to-grid, or V2G, is technology that lets an electric vehicle push power back out of its battery — to your building or the grid — instead of only drawing power in. A depot full of parked vehicles becomes, in effect, a large parked battery.

In principle this could help cut your peak costs or even earn revenue, by using all that parked capacity when it’s valuable and recharging when it’s cheap. It’s a genuinely exciting idea for fleets that sit idle for long stretches.

In practice, though, V2G is still maturing: it needs compatible vehicles and chargers, and the commercial arrangements are early. For now, treat it as a future opportunity to keep an eye on rather than something to build your plans around today. Getting your basic smart charging right matters far more first.

During a power cut, charging simply stops, just as fuel pumps would if their power failed. For a fleet that depends on charging, that turns a power interruption into an operational risk rather than a mere inconvenience.

How much this matters depends on your operation and how long any outage lasts. Short interruptions overnight may be absorbed if vehicles are already charged. For longer or more critical situations, there are options: an on-site battery can keep some charging going, backup generation can cover essential vehicles, and smart systems can prioritise the vehicles you most need on the road.

The sensible approach is to think about resilience in proportion to how critical your fleet is. Emergency and essential services plan for it carefully; a low-stakes fleet may accept the small risk. Either way, it’s better considered early than discovered during an outage.

There are two broad ways to fund depot charging. You can buy and own the equipment outright, or you can use a charging-as-a-service arrangement, where a provider installs and maintains it and you pay over time, often per unit of energy or a regular fee.

Owning tends to be cheaper over the long run and gives you full control, but it means a larger upfront outlay and responsibility for maintenance. A service reduces the upfront cost and hands the technical risk to a provider, at the price of paying more overall and depending on that provider. Grants like the Depot Charging Scheme can make ownership more attractive by cutting the upfront cost.

The right choice comes down to your appetite for upfront investment versus ongoing cost, and how much in-house capability you want. Neither is wrong; they suit different organisations.

Depot charging involves a few different parties, and knowing who does what avoids confusion. Specialist EV charging installers — often accredited electrical contractors — supply and fit the chargers and carry out the civil works, such as trenching and cabling. Many also provide or integrate the smart-charging software.

Separately, your DNO handles anything to do with increasing your grid connection, and for larger connection works an accredited connection provider may carry out parts of it. So a typical project has an installer for the on-site charging equipment and the DNO (plus possibly a connection provider) for the power supply.

For bigger or more complex sites, an independent consultant can help you specify the right system, run a fair procurement, and coordinate these parties — which is especially useful if this is your first depot project.

Two mistakes cost operators the most: buying the wrong size of equipment, and getting locked into one supplier. Both are avoidable with a little diligence.

To get the sizing right, base your charger choices on how your vehicles are really used — their duty cycles and dwell times — rather than on a sales pitch or a one-charger-per-vehicle assumption. That usually means fewer, better-matched chargers. To avoid lock-in, insist on open standards: OCPP-compliant chargers can work with different management software, so you’re free to switch software or mix charger brands later rather than being trapped with one vendor.

Also read the contract for exit terms and who owns the data and the hardware. A charging system lives in your yard for a decade, so the freedom to change suppliers is worth protecting. An independent adviser can help you specify all this fairly.

Broadly yes, as long as the connector types line up. The UK and Europe have largely standardised on Type 2 plugs for AC charging and CCS for DC rapid charging, so most modern electric vans, trucks and buses will work with chargers that offer those connectors.

The main things to check are that your chargers provide the connector your vehicles use, and that the charger’s power suits the vehicle — there’s no benefit paying for a 150 kW charger if a vehicle can only accept 50 kW. Very large trucks may eventually use a newer high-power standard (MCS), but that’s a future consideration for most fleets.

So you’re not tied to buying one brand of vehicle to suit your chargers. Match the plug and the power sensibly, favour open standards, and compatibility is rarely a problem.

OCPP — the Open Charge Point Protocol — is a common language that lets chargers from different manufacturers talk to different management software. It sounds technical, but its practical value is simple: freedom.

If your chargers are fully OCPP-compliant, you can change the back-office software that controls them, or add chargers from another brand, without ripping everything out. If they’re not, you can end up trapped with one supplier’s hardware and software for the life of the system — and at their mercy on price and service.

Because a depot charging setup lasts many years, that flexibility is genuinely valuable. It’s worth making OCPP compliance a firm requirement when you buy, and asking any supplier directly: ‘Are these chargers fully OCPP compliant?’ A yes protects your options for the next decade.