MPPT controller upgrade · Somerset

Maximise your solar harvest:
Victron MPPT solar controller installation in Somerset

MPPT solar controller upgrades from £200

Are you getting every watt your solar panels produce? We install Victron SmartSolar MPPT controllers that extract up to 30% more energy than basic PWM controllers — no extra panels needed.

8+ years experience
12-month warranty
1–3 day turnaround
Victron SmartSolar MPPT 75/15 controller
The problem

Is your solar controller leaving power on the roof?

Most factory-installed campervans use basic PWM (Pulse Width Modulation) controllers. They're cheap and simple, but they waste a significant amount of the energy your solar panels are producing. If your battery isn't topping up as fast as it should, the problem might not be your panels — it's your controller.

Does this sound familiar?

  • Your battery barely charges on cloudy days, even though your panels are rated for it.
  • You're considering adding more solar panels, but you're not sure it will actually help.
  • You have no idea how much power your panels are actually generating day to day.
  • Your current controller isn't compatible with lithium batteries, limiting future upgrades.

Before you buy more panels, upgrade the controller that's wasting the power you already have.

Basic PWM solar charge controller with minimal LED display
The solution

Why MPPT is a game-changer for your solar system

Maximum Power Point Tracking (MPPT) is a smarter way to manage solar power. Unlike basic PWM controllers that simply pull panel voltage down to match the battery, an MPPT controller actively tracks the optimum power point of your solar panels and converts excess voltage into additional charge current.

The result? Up to 30% more energy harvested from the same panels — especially in UK conditions where cloud cover, low sun angles, and changing light levels are the norm. Victron's exceptionally fast tracking algorithm locks onto the optimum power point even when light intensity is constantly shifting.

Before you look for space to install more solar panels, consider upgrading your controller first. You may not need more glass on your roof — you might just need a controller capable of harvesting the power you are already generating. An MPPT upgrade is the most cost-effective way to boost your off-grid performance without a complex array re-installation.

Based in Williton, Somerset, we install Victron SmartSolar MPPT controllers for campervan and motorhome owners across the county. We'll assess your existing setup and recommend the right controller for your panel array and battery type.

Victron SmartSolar MPPT — the gold standard

  • Bluetooth monitoring — Track solar yield, battery status, and charge history in real-time via the VictronConnect app.
  • Universal compatibility — Fully configurable charge profiles for AGM, Gel, and Lithium batteries.
  • Ultra-fast tracking — Locks onto the optimum power point instantly as light conditions change.

The essential step for lithium upgrades

If you are considering a switch to lithium now or in the future, a Victron SmartSolar MPPT is a vital upgrade.

  • Lithium batteries need a specific absorption voltage and charging profile that PWM controllers cannot deliver.
  • Victron MPPTs feature fully configurable lithium profiles, ensuring safe and complete charging every time.

See our lithium battery upgrade or solar panel installation pages for combined solutions. Own a caravan? See our caravan MPPT upgrade page.

VictronConnect app showing MPPT controller status
Benefits

Why upgrade to a Victron MPPT solar controller?

Up to 30% more solar harvest

MPPT technology extracts significantly more energy from your existing panels compared to PWM — especially in cloudy UK conditions.

Bluetooth Monitoring

Victron SmartSolar controllers include built-in Bluetooth. Monitor your solar yield, battery voltage, and charge history from your phone.

Lithium ready

Fully configurable charge profiles mean your MPPT controller works perfectly with AGM, Gel, and Lithium batteries — now or in the future.

Ultra-fast power point tracking

Victron's algorithm locks onto the optimum power point almost instantly, so you harvest more energy during passing clouds and changing light.

No extra panels needed

An MPPT upgrade is the most cost-effective way to boost solar performance. You may not need more panels — just a better controller.

Smart voltage conversion

MPPT steps higher panel voltage down to the perfect charging voltage, maintaining maximum current flow and efficiency.
How it works

Our 5-step MPPT controller upgrade

From identifying the right Victron MPPT to a fully configured, app-connected system.

01

Consultation

Tell us about your existing solar setup — panel wattage, battery type, and what you're hoping to harvest. We'll confirm whether an MPPT upgrade (and which model) is the right move for your build.

02

Quote

We match the right Victron SmartSolar MPPT to your panel array and battery, then send a clear, itemised quote within 48 hours — including any cable, fuse, or mounting changes — along with an estimated parts lead time.

03

Book the install

A deposit covers the controller and any supporting parts, and locks in your install date. Most MPPT swaps are booked in within 2–4 weeks.

04

Professional installation

We remove the old controller, mount the new SmartSolar unit in a sensible location, and re-wire the panel input and battery output to the correct gauge. Charge parameters are configured for your battery chemistry, then everything is tested under load — typically a same-day job at our workshop.

05

Demo and handover

We connect the controller to the VictronConnect app, walk you through the live solar data, and explain the new charge profile. You leave with documentation, our 12-month installation warranty, and ongoing support if anything needs tweaking later.

Ready to start?

Stop wasting free energy from your solar panels

Upgrade to a Victron SmartSolar MPPT controller and unlock the true potential of your existing solar setup. Professional installation by Quantock Van Tech in Somerset.

Quantock Van Tech

Specialist campervan electrical installations in West Somerset. Solar, lithium batteries, and charging systems — supply & fit.

Contact

01984 600327

[email protected]

Williton, West Somerset

© 2026 J Blackmore t/a Quantock Van Tech. All rights reserved.

Campervan electrical systems — supply & fit specialists in West Somerset

Call 01984 600327