Why people choose us
Interactive Battery Sizing
Determine the exact battery capacity your setup needs. Input your appliances, usage times, and desired autonomy, and our calculator provides a clear recommendation. This prevents overspending on unnecessary capacity or facing power shortages when you need it most.
Comprehensive Solar System Calculators
Optimize your solar panel array for maximum energy harvest. Our tools help you factor in peak sun hours, panel efficiency, and system losses, ensuring your panels generate sufficient power to recharge your batteries and run your devices effectively, no matter your location.
Detailed Wiring Guides
Ensure electrical safety and efficiency with correct wire gauge selection. Our guides help you choose the appropriate wire size for your DC-DC chargers, solar panels, and appliance circuits, minimizing voltage drop and fire risks for your off-grid installation.
Lithium vs. AGM Comparison
Decide between battery chemistries with a clear comparison of lithium and AGM options. Understand the costs, lifespans, weight differences, and performance characteristics to make an informed choice that aligns with your budget and power needs for your mobile setup.
How we compare
Common questions
How do your calculators account for real-world conditions?
Our calculators incorporate factors often overlooked in simpler tools, such as ambient temperature effects on battery performance, Peukert's effect for lead-acid batteries, and typical efficiency losses in solar charging systems. This ensures the recommendations are not just theoretical, but robust enough for varied climates and usage patterns you'll encounter on the road, providing more accurate sizing for your components.
Are these tools suitable for beginners or only experienced builders?
Our tools are designed to be intuitive for beginners while offering the depth of detail experienced builders require. Each calculator includes clear instructions and explanations of the input parameters, making it accessible for anyone planning an off-grid electrical system. You don't need a deep electrical background to get valuable, accurate results from our platform.
Do I need to create an account to use the calculators?
No, all our core interactive calculators and educational content are freely accessible without requiring any account creation or registration. We believe in providing immediate value to the van-life and off-grid community. You can jump straight into planning your system as soon as you visit the site, without any barriers.
How do you provide multi-region support for solar calculations?
Our solar system calculators integrate geographic data to estimate peak sun hours and solar insolation for various regions, including Australia, the US, Canada, the UK, and the EU. This allows you to input your specific location and receive calculations tailored to the local solar conditions, ensuring your array is appropriately sized for your travel destinations.
Ready when you are
Beyond the Numbers: Practical Guides and System Layouts
Our calculators handle the precise component sizing, but building a robust off-grid system requires more than just specifications. We provide clear, visual wiring diagrams, practical system layout suggestions, and deep dives into common challenges like shading, cable voltage drop, and optimal panel placement. Avoid common pitfalls and ensure your system performs reliably, whether you're building a weekend camper or a full-time tiny home. These resources empower you to understand not just 'what' you need, but 'why' and 'how' to integrate it effectively into your specific setup.