ELECTRICAL SERVICES
Trusted canal boat electrical & electronic engineers — fault-finding, upgrades, installs and tidy, safe wiring.
Canal & Inland Waterway Electrical & Electronic Engineers
At Onboard Solar, we provide professional marine electrical and electronic services for canal boats, narrowboats, widebeams and inland waterway vessels across the UK.
Whether you’re upgrading your electrical system, troubleshooting a fault, or planning a full refit, our experienced marine engineers deliver safe, reliable and efficient solutions designed for life on the water.
When your electrics are right, everything onboard feels easier — charging is predictable, power is stable, and faults don’t ruin weekends. Onboard Solar provides Marine Electrical Services for canal boats, covering diagnostics, repairs, upgrades and new installations with a focus on safe wiring, tidy routing, sensible component choices, and real-world reliability.
Service 1: Electrical Fault-Finding & Repairs
What we do: Diagnose intermittent issues, voltage drop, nuisance trips, charging faults, heat damage, poor connections, and “mystery drains.”
Ideal for: Lights dimming, batteries not charging properly, inverter shutting down, RCD/MCB trips.
Outcome: A clear explanation of the cause + a proper repair (not a guess).
Service 2: Battery Banks & Battery Monitoring
What we do: Battery bank design, replacements, bank balancing, monitor installation/configuration, cable and fuse corrections.
Ideal for: Upgrading to larger capacity, switching battery types, improving runtime, understanding real usage.
Outcome: Predictable energy storage and accurate state-of-charge info.
Service 3: Charging Systems (Alternator, Solar, Shore Power)
What we do: Improve charging performance and protect batteries with correct regulation and safe connections.
Ideal for: Slow charging, over/under-charging concerns, mixed charging sources, seasonal solar optimisation.
Outcome: Faster, safer charging with better battery life.
Service 4: Inverters, 230V AC Systems & Shore Power
What we do: Inverter selection/installation, consumer unit upgrades, correct earthing/bonding approach, socket circuits, shore power integration.
Ideal for: Adding mains onboard, improving safety, reducing trips, cleaner installs.
Outcome: Stable AC power that’s set up properly and safely.
Service 5: DC Distribution, Fusing & Cable Upgrades
What we do: Rebuild messy DC systems, add proper fuse protection, busbars, isolators, tidy looms, labelled circuits.
Ideal for: “Spaghetti wiring,” hot cables, blown fuses, add-ons over time.
Outcome: A serviceable system you (and future engineers) can actually work on.
Service 6: Marine Electronics & Upgrades (Lighting, Pumps, Controls)
What we do: Diagnose/upgrade 12V systems, LEDs, water pumps, switches, control panels, and practical onboard electronics.
Ideal for: Modernising the boat, reducing power draw, improving usability.
Outcome: Clean, dependable upgrades that suit real cruising.
