PVLevel vs HoriSol

The Bubble Level for Professional PV Installers. Measure & Align Your PV Solar Panels On-Site Perfectly in Real Time. Displays Instantly Energy & Earnings Predictions. No Tools Required — Just Your Phone. Running On Live Phone Sensor Measurements & Scientific Solar Data. Scientific accuracy back-tested with average errors smaller 1,0% (max. errors smaller 5% for irrelevant orientations) on PVGIS solar data base Experience how changing the orientation of your PV panels benefits the energy production and earnings in real-time. Collaborate with your co-workers & update your customers in real-time. PVLevel guides you with ease through all the phases of measuring, optimizing, planning & even installing your next home PV system or simply aligning your mobile PV panel on your next camping trip in no time! Use your mobile device and its integrated sensors as measuring tool to measure the solar panel orientations in real-time, displaying the predicted solar energy and expected money gained with every move of your device! Align your device parallel to the roof or planned panel orientation and PVLevel does everything else for you. Verify your installation process by measuring the actual orientation of the PV panels before tightening the screws! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

No hype. Real numbers. HoriSol calculates whether a balcony solar kit actually makes sense at your specific location — using real photo-based shading measurements and conservative assumptions you can actually understand. 6 STEPS TO YOUR YIELD ESTIMATE 1. Location — GPS or address search 2. Panel — power, orientation, tilt, multiple arrays (East/West) 3. Shading — three photos per orientation, real horizon analysis 4. Consumption — household profile with heat pump, EV, hot water 5. Economics — investment cost, electricity price, feed-in tariff 6. Result — annual yield (kWh), payback period, self-consumption rate, CO₂ savings WHY OTHER APPS ARE TOO OPTIMISTIC Vendor calculators use idealized data. HoriSol measures your actual shading from photos, corrects known bias in hourly aggregations, and pulls solar data from the best available source for your location: • PVGIS for Europe and Africa • PVWatts for the USA • NASA POWER as global fallback Results carry a ±10% confidence range — no black box, no magic numbers. NO COMPROMISES • Fully offline — no cloud required, no tracking • No account, no sign-up, no email • All model assumptions openly documented • Country-specific defaults: electricity prices, load profiles, feed-in rates PREMIUM — ONE-TIME, NO SUBSCRIPTION A single purchase unlocks: • 3-page professional PDF report (vs. 1 page free) • Up to 20 saved configurations (vs. 1 free) • Multiple arrays with separate shading analysis • Detailed load profile upload (custom consumption data) WHO IS HORISOL FOR? HoriSol is for renters and homeowners who want an honest answer — not for people already convinced who just want confirmation. If the numbers don't add up, the app will tell you that too.