Volcast - Solar Forecast
Michal Bartosiak · Weather
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Chart standing · US
What changed · US
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• Config Doctor: the app checks your panel and inverter settings for common mistakes and suggests fixes. • Forecast model update, rolling out gradually over the coming days: better morning and afternoon shape. Calibration re-learns over a few days. • API key: "Share key" sends the full key to the computer running Home Assistant. • Home Assistant integration 1.7.1: instant feedback on an incomplete key, production sync that survives HA restarts. Changelog: volcast.app/changelog
Ratings breakdown · US
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In-app purchases · US
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VortiCast
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About
Maximize your solar investment with Volcast – the ultimate PV production forecast tool. Stop guessing when the sun will power your home. Volcast provides an accurate, hour-by-hour solar production forecast for your PV system, covering today and the next 7 days. Designed by solar owners for solar owners, Volcast helps you align your energy-heavy tasks with peak production windows to maximize self-consumption. SMART HOME & HOME ASSISTANT INTEGRATION Volcast features a professional REST API for Home Assistant users. Export your forecast data directly to your HA dashboards to automate your smart home based on solar availability. ADVANCED PHYSICS-BASED ENGINE We combine real-time satellite irradiance data with a high-fidelity physics engine. We account for: Multi-String Support: Perfect for complex east-west or multi-roof systems. Bifacial Panels: Specialized modeling for modern modules. AI Auto-Calibration: Our algorithms learn your system's performance over time. Horizon Profiling: Accounts for shading from terrain and obstacles. KEY FEATURES: 7-Day Precise Forecast: Hour-by-hour power prediction. Hourly View Toggle: Switch each hour between forecast, actual production, and the difference at a tap. Multi-Device Sync: Production history and calibration stay in sync across every device you sign in on. Notification Center: Evening forecasts, snow warnings, and peak window alerts. Privacy First: Secure processing, no ads, no third-party tracking. PLANS & PRICING: Free: 48-hour high-accuracy forecast. Premium (monthly or yearly): Full 7-day forecast, AI calibration, and Home Assistant API access. Start with a 7-day free trial. Terms of Use: https://volcast.app/terms Privacy Policy: https://volcast.app/privacy Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage subscriptions in your App Store account settings.
What's new · 1.6.0
• Config Doctor: the app checks your panel and inverter settings for common mistakes and suggests fixes. • Forecast model update, rolling out gradually over the coming days: better morning and afternoon shape. Calibration re-learns over a few days. • API key: "Share key" sends the full key to the computer running Home Assistant. • Home Assistant integration 1.7.1: instant feedback on an incomplete key, production sync that survives HA restarts. Changelog: volcast.app/changelog
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