Long Driveway Power: Avoid a Second Trench With Spare Conduit

The realistic options for a long driveway are an underground mains extension, an overhead service or meter near the gate, distributed solar lights or local battery units, or a generator for remote sections. Which one suits you depends on distance, terrain and what you need to run at the far end, from a gate motor to an EV charger. Before committing to any of them, we recommend booking a licensed electrician for a site inspection to check load requirements and easement rules.

TL;DR:

• For lighting alone, per fixture solar avoids trenching and cable costs, but output falls during extended overcast weather and batteries need occasional replacement.
• Runs of hundreds of metres can leave motors and EV chargers underpowered; electricians size cables for distance and load, while conduit eases future repairs.
• Before trenching, check registered easements and network operator rules; crossing an easement may require reinforced concrete and protective ducting, while metering needs approval.
• Install empty spare conduits before paving or repaving, because adding them later can require breaking finished concrete and raise project costs.
• Mains extensions usually cost the most and can take weeks to months for surveys, approvals, trenching, installation, and certification; solar lighting is quicker.

Table of Contents

• Practical options for powering or lighting a long driveway
• Voltage drop, cable selection and conduit choices
• Easements, network rules and who’s allowed to do the work
• What drives cost and how long the work typically takes
• Getting ready for a quote: a planning checklist
• What years of driveway jobs have taught us
• How we help: free site inspections and Level 2 installations
• FAQ
• Sources

Practical options for powering or lighting a long driveway

Every driveway power project comes down to one trade-off: how much cable, trenching and certification you want to pay for versus how much reliability and future capacity you need.

An underground mains extension to a sub-panel near the gate is usually the best long-term answer for driveways that need to run a gate motor, cameras, lighting and possibly an EV charger all at once. It involves trenching from the main switchboard, running correctly rated cable in conduit, and installing a small distribution board at the far end. It costs more upfront but gives you full mains capacity without drawing down a separate connection.

An overhead service or a utility meter near the gate can work where trenching the full driveway length is impractical, such as rocky or heavily landscaped ground. This path usually needs permission from your network operator and sometimes a separate metering arrangement, so feasibility depends on where your property sits relative to existing poles.

Distributed solar lights or per-light solar units suit driveways where lighting is the only real requirement. Each fixture has its own panel and battery, so there is no trenching and no cable run at all. Maintenance is mostly panel cleaning and occasional battery replacement, and output drops in long runs of overcast weather.

For rural or acreage properties, a hybrid approach pairing a local solar array and battery with a mains-fed trickle charge gives reliable power around the clock while cutting the amount of trenching needed, since the mains cable only has to carry a small maintenance charge rather than the full load.

A local generator or temporary power connection suits very long or remote driveways where permanent mains extension isn’t yet justified, such as a construction phase or a seasonal property. We offer generator installation for exactly this kind of standalone setup.

Low-voltage DC lighting is worth considering if lighting is your main load. Keeping the power supply and battery close to the fixtures reduces the conductor size you need, since DC systems avoid some of the voltage-drop penalties of long AC runs, provided the load and voltage are calculated properly.

A short way to match distance and use to an option:

• For shorter runs with simple lighting only: solar lights or a low-voltage DC run are usually enough.
• For medium-length runs with a gate motor or cameras: underground mains extension with correctly sized cable.
• For long runs with heavy loads or an EV charger planned: mains extension with voltage-drop calculations, or a local meter near the gate.
• Remote or temporary sites: generator or hybrid solar-battery system until permanent power is justified.

Voltage drop, cable selection and conduit choices

Every long cable run loses voltage along its length, and the longer the run, the worse it gets. On a long driveway, standard household cable sized for a short run can drop voltage below what a gate motor or EV charger needs to operate properly, which is why voltage drop becomes a major concern at distances of hundreds of metres. Motors and chargers are particularly sensitive to this: a motor running on low voltage draws more current, runs hotter and wears out faster.

An electrician addresses this with:

1. Larger conductor gauges sized specifically for the run length and expected load, not just the appliance rating.
2. Conduit installation rather than direct burial, which allows cables to be replaced or added to later without re-trenching.
3. Weather-rated conductors, typically THWN-type wires in PVC conduit, which hold up better over long conduit runs than cable types designed for shorter indoor use.
4. For very long runs, a higher transmission voltage or a local step-down transformer, which lets the system use smaller cable than a straight low-voltage run would need.

Direct-bury cable costs less to install but is harder and more expensive to repair or extend later, since any fault means digging up the exact section. Conduit costs more initially but makes future repairs, upgrades or added circuits far simpler.

It is feasible to run lighting and power outlets together in the same conduit using individually sized conductors, but voltage drop has to be calculated separately for each circuit, and the conduit itself needs to be sized to fit all the conductors without overheating.

Pro Tip: If you’re paving or repaving any section of the driveway, have us install spare empty conduits now. Pulling new cable through an existing conduit later costs a fraction of breaking up finished concrete.

Easements, network rules and who’s allowed to do the work

Long driveways often cross underground cable easements, and these come with their own construction rules that exist independently of your own electrical plans.

• Check whether your driveway crosses a registered easement before any trenching or repaving, since crossing an underground cable easement often requires reinforced concrete of a specified thickness and ducting to protect existing services.
• Network operators publish detailed easement construction guidelines covering concrete thickness, mesh layers, spare ducts and expansion joints that you need to follow if concreting over an easement.
• A separate meter or a new network connection point is sometimes required for a driveway-end installation, and this is arranged through your network operator rather than organised informally.
• All permanent electrical work, including driveway lighting, gate motors or EV chargers, must be carried out by a licensed and qualified electrical contractor to meet safety compliance and load certification requirements.
• Service mains and metering work typically falls under Level 2 accreditation, which is a separate qualification above a standard electrical licence.

A proper site inspection will check your switchboard capacity, the easement status of your land, and any permits the network operator requires before work starts. We back this up with our own electrical safety inspections to confirm the installation meets the required standard.

What drives cost and how long the work typically takes

Cost on a driveway power project comes down to a handful of factors: trenching and reinstatement of paving or landscaping, conductor size for the distance involved, any meter or transformer work, network fees and permits, and labour.

• Per-light solar units are the cheapest option for very long runs, since there is no trenching or cable cost at all.
• An overhead service or a local meter sits in the middle, with cost driven mostly by network fees and pole work rather than trenching.
• A full underground mains extension is typically the highest-cost option, because it combines trenching, larger cable and certification work.

Timelines follow a similar pattern. A straightforward solar light installation can be completed quickly. A mains extension moves through site survey, design and approval, materials lead time for cable and switchgear, civil works for trenching, and finally installation and certification, a sequence that can run from a couple of weeks to a couple of months depending on council or network sign-off.

One planning decision affects both cost and timeline more than almost anything else: including spare ducts while paving or repaving. Skipping this step is the single most common reason driveway power projects become more expensive later, since adding conduit through finished concrete means breaking it up again.

Getting ready for a quote: a planning checklist

Before you call anyone for a quote, a bit of preparation speeds up the process and avoids surprises once a contractor is on site.

1. Measure the driveway length and note any terrain challenges, existing conduits, or poles already in place.
2. List every load you need to power at the far end, such as a gate motor’s amp draw, cameras, lighting and any EV charger you’re planning for, along with preferred voltages.
3. Photograph the full route and mark any visible services, manholes or easement markers you can see.
4. Decide now whether you want spare conduits installed before any resurfacing work goes ahead.
5. Gather existing paperwork on your property’s electrical connection and switchboard, and be ready to ask for the electrician’s licence and Level 2 accreditation if the job involves service mains or metering.

If cameras or an intercom are part of the plan, it’s worth coordinating power and data cabling at the same time rather than as two separate projects. For wired versus wireless trade-offs on the camera side, the CCTV Database has a practical comparison worth reading before you decide how much conduit capacity to plan for.

What years of driveway jobs have taught us

The same three mistakes come up again and again: no spare conduit before paving, cable sized for the appliance rather than the distance, and no check of whether the route crosses an easement. Each one turns a straightforward job into an expensive rework later.

Early planning with a qualified electrician costs little and saves a lot, both in avoided re-trenching and in getting the load calculation right the first time. If you’re weighing up options for your own driveway, get them checked against your specific site before you commit to any one approach.

— Christopher

How we help: free site inspections and Level 2 installations

We carry out Level 2 installations, consumer mains work, and private pole or underground service connections for driveway power projects, and we offer free site inspections for Level 2 jobs so you know exactly what’s involved before committing to anything.

A site inspection from us covers a load assessment for your planned appliances, a conduit recommendation sized for future needs like an EV charger, and guidance on any permits or network approvals required.

• Bring your measured driveway length and terrain notes.
• List the loads you want to power, including any future EV charging.
• Note whether spare conduits are wanted before resurfacing.

Work through the planning checklist above, then book a free Level 2 site inspection through our electrician page and we’ll take it from there.

FAQ

What is the best way to power a long driveway?

For most long driveways with a gate motor, lighting or cameras, an underground mains extension with correctly sized cable is the most reliable long-term option. Shorter runs or lighting-only needs are often better served by solar lights or a low-voltage DC system, which avoid trenching altogether.

Do I need a licensed electrician for driveway power work?

Yes. All permanent electrical work for driveway lighting, gate motors or EV chargers must be carried out by a licensed and qualified electrical contractor to meet safety and certification requirements, and service mains or metering work often needs Level 2 accreditation specifically.

Why does voltage drop matter for long driveway cable runs?

Voltage drop increases with cable length, and on runs of hundreds of metres it can leave motors or EV chargers running on insufficient voltage, causing higher current draw and premature wear. Larger conductor gauges, conduit installation, or a local step-down transformer are the usual fixes.

Can I run power and lighting through the same conduit?

Yes, it’s feasible to run outlets and lighting together in one conduit using individually sized conductors, but voltage drop has to be calculated separately for each circuit and the conduit sized to suit both.

Do I need approval if my driveway crosses an easement?

Yes, driveways that cross underground cable easements often require reinforced concrete and ducting to a specified standard, and your network operator may require spare ducts for future access.

Sources

• Erac
• Underground Cable Easement Approved Conditions
• Transgrid
• Driveway electric run using existing service poles