€15,000Contact dealer
Helios Sigma
€15,000
Length
4.5m 14.8ft
Beam
1.6m 5.2ft
Draft
0.2m 0.7ft
Overview
Eco-Friendly Electric Boat
The Helios Sigma 4.5 is a compact electric yacht with solar boost, zero-emission cruising, and smart connectivity for eco-minded sailors. This sustainable boat offers a blend of performance, design, and environmental responsibility. With its lightweight and responsive design, the Sigma 4.5 is well suited to everyday boating, providing smooth and confident handling on the water. Smart features and sustainable engineering combine to deliver efficient, uninterrupted performance for cruising or exploring alike.
What sets it apart
Easy, Everyday Electric Boating
The Helios Sigma 4.5 is a compact electric boat with a solar boost, built for zero-emission cruising and smart connectivity in a lightweight, responsive package.
Light and Responsive
At just 4.5 metres, the Sigma 4.5 is easy to handle and quick to respond, making everyday boating smooth and confident for cruising or exploring alike.
Smart, Efficient Engineering
Smart features and sustainable engineering combine to deliver efficient, uninterrupted performance, so a day on the water stays simple, quiet, and clean.
Sustainability
Built for cleaner seas
The Helios Sigma is part of Volta's commitment to a zero-emission, sustainable maritime future. Cleaner seas, quieter coasts, less noise pollution, no diesel.
Technical
Specifications
Last updated Jul 2026
Specs verified Jul 2026 against manufacturer data
Length
4.5m14.8ft
Beam
1.6m5.2ft
Draft
0.2m0.7ft
- Top speed
- 8 kn
- Motor power
- 14 kW
- Battery capacity
- 18 kWh
- Battery System
- Smart marine LFP battery pack with onboard battery management system
- Solar Boost
- Solar panel extends range between charges
Photography
Gallery
A compact electric boat with a solar boost, light and responsive for smooth, zero-emission days on the water.
Exterior
Helios Sigma
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Helios Marine
3 electric boats on Volta
Before you buy
Experience electric boating in Mallorca
Try one on the water first. These run in Mallorca and are booked directly with the operator.
Buyer's guides
Before you buy, read these
Electric Boat Charging Guide: Times, Costs and Connectors
How electric boat charging works in practice: real charge times and costs computed from ten boats in our catalog, connector standards, where to plug in across Europe, and how to care for the battery.
Read guide →The Electric Boat Buying Guide for 2026
Everything first-time buyers need to evaluate electric boats: range, charging, cost of ownership, brand selection, and the questions to ask a dealer.
Read guide →Explore more
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