SunMargin: Solar Calculator

Explore a solar quote using your own assumptions. Compare projected costs and savings before deciding what to investigate further. - Enter installation cost, generation and consumption assumptions. - Set import prices, export credits and operating costs. - Review projections and sensitivity to changing inputs. - Save scenarios and export results as CSV. Your records are stored on your device. Export backups before changing devices. Free includes 1 saved scenario. An optional one-time Lifetime Pro purchase expands the app's Free limits and adds private iCloud sync. No ads, no account and no subscription. Existing records and backups remain accessible after a refund or loss of Pro. Projections depend on your inputs and are estimates, not guaranteed savings or financial advice.