Plan it. Size it. Build it with confidence.
Off-Grid Solar Power Systems Planner is a practical workbook designed to help you turn an off-grid solar idea into a well-organized, properly planned system.
Rather than guessing at equipment or starting with the question, "How many solar panels do I need?" this planner helps you begin with what really matters: what your power system needs to do.
Work through your project step by step as you identify electrical loads, estimate daily energy use, size your solar array and battery bank, consider inverter requirements, plan wiring and protection, compare equipment, organize costs, and keep important project information together.
Use the Planner to help you:

• Calculate and organize your electrical loads
• Estimate daily energy requirements
• Plan solar-array size and production
• Determine battery-bank requirements
• Evaluate inverter needs
• Organize wiring and system-protection decisions
• Compare equipment and vendors
• Track costs, budgets, and project progress
• Record system specifications and maintenance information
• Keep notes, calculations, and decisions in one place

Designed for cabins, homes, tiny houses, RVs, boats, workshops, and remote properties, the Planner can be used for projects large or small.
It is more than a notebook. It is a working companion you can use at the kitchen table, take into the shop, or carry into the field as your system moves from an idea on paper to real off-grid power.
Design. Plan. Size. Build.
Off-Grid Solar Power Systems Planner is part of Den Collier's Off-Grid Solar Series and works especially well alongside Off-Grid Solar Power Systems for Beginners and Off-Grid Solar Power Systems - Advanced.