JBH Off-Grid Power Planner Lite – Offline Power Planning for Digital Nomads & Travelers

Plan your off-grid energy before the nearest power socket is kilometres away.

JBH Off-Grid Power Planner Lite is a beginner-friendly offline tool for travellers, digital nomads, campers and expedition participants who need to power a laptop and other portable devices away from the electrical grid.

Enter a few practical details about your power bank, solar panel, vehicle charger and devices. The guided planner then estimates how much work and essential device use your available energy can realistically support.

You do not need to understand electrical engineering. If you cannot find an exact value, the planner can use a typical estimate and will clearly mark the resulting calculation as approximate.

WHAT YOU CAN PLAN

• Sustainable laptop working hours per day

• Daily energy consumption and charging supply in Wh

• Power-bank or battery autonomy without new charging

• Realistic solar generation based on panel power, useful sun hours and conditions

• Energy collected while driving and charging from a vehicle

• Essential devices such as a phone, headlamp, camera or navigation equipment

• Optional devices such as a drone or additional electronics

• Daily energy surplus or deficit

• Alternative scenarios for improving an insufficient result

BUILD A BETTER SCENARIO

If the initial result does not meet your needs, you can compare possible changes:

• Reduce the required laptop working time

• Use a more energy-efficient laptop

• Add more battery storage

• Increase available solar power

• Use faster USB-C PD vehicle charging

• Increase planned driving time

• Move suitable tasks from the laptop to lower-consumption devices

The planner helps you see which changes improve daily sustainability and which only provide a larger temporary energy reserve.

WHAT IS INCLUDED

• JBH Off-Grid Power Planner Lite offline web wizard

• Quick Start Guide in PDF format

• Advanced 30-Day Planning Workbook for Excel

• Personal-use licence

OFFLINE AND PRIVATE

The planner runs locally in a normal web browser. No installation, account or permanent internet connection is required. Your equipment details and calculations are not uploaded anywhere.

Simply download and extract the ZIP archive, then open the included HTML file.

IMPORTANT

The results are planning estimates, not guaranteed operating times. Actual performance depends on battery condition, temperature, cables, charging protocols, device workload, panel angle, shade and weather conditions.

Always keep an independent emergency power reserve for navigation, communication and lighting.