Planning tools
Plan before you buy
Each tool runs in your browser, saves to My plan in this browser only, and prints. Every result is a planning estimate with a range, to take to a supplier, inspector or contractor. None of them is a design.
Homestead brief
Climate zone, people, goals, budget range and must-haves.
Used in Lesson 6
Load calculator
What you run, for how long, and the big loads that decide everything.
Used in Lesson 22
Solar and battery sizer
Array, battery and inverter ranges for your darkest month.
Used in Lesson 29
Water budget
Daily water use by fixture, garden and animals.
Used in Lesson 20
Rain catchment sizer
Monthly rain off your roof against what you use, and the tank to bridge the gap.
Used in Lesson 20
Heat-loss estimator
How fast a home loses heat, and a season of fuel.
Used in Lesson 30
Small floor plan
Size, orientation, windows and rooms, with a heat-loss estimate.
Used in Lesson 13
Year-one plan and budget
Phase the work and add up cost ranges and hours.
Used in Lesson 43