Solar charge controller sizer
Size a solar charge controller using panel Voc, Vmp, Isc, temperature coefficient, stringing, battery voltage, and controller limits, with cold-weather voltage checks and MPPT-versus-PWM guidance.
Specific calculators, planners, and explainers for jobs that usually get buried in forums.
HTML-first, no account wall
Shareable URLs and direct outputs
Topic hub
Solar and energy tools
Planning tools for solar row spacing, charge controller sizing, inverter clipping, and related array design questions.
The solar pages already form a practical mini-cluster around system design and buying decisions: layout spacing, controller sizing, and DC-to-AC ratio tradeoffs. This hub makes that branch easier to crawl and easier to browse as one energy-focused workflow.
Tools in this cluster
Solar inverter clipping explorer
Explore solar inverter clipping with a live DC/AC ratio curve, array-shape presets, clipping window timing, daily lost energy, and a rough annual loss estimate.
Solar panel row spacing calculator
Estimate winter-safe solar row spacing from tilt, panel dimensions, and latitude, with metric and imperial inputs.
Recent launch notes
Launched a solar charge controller sizer with cold-weather Voc checks, series-string fit, and battery charge-current planning
Added a solar sizing tool that checks controller voltage and current limits against panel specs, cold weather, battery voltage, and series-parallel stringing, then suggests a safer controller class.
Launched a solar inverter clipping explorer for DC/AC ratio tradeoffs, curve shape, and rough annual loss
Added a solar sizing explainer that models inverter clipping across different array shapes and day profiles, with a live power curve, clipping window, daily lost energy, and rough annual loss estimate.
Launched a solar panel row spacing calculator
Shipped a fixed-tilt solar panel row spacing calculator that turns latitude, panel length, tilt, and row count into winter-solstice pitch, clear spacing, shadow length, and total array depth.