# Solar Production

> NREL TMY kWh

Canonical page: [https://chrome-stats.com/d/id6767838845](https://chrome-stats.com/d/id6767838845)

## Overview

- **ID:** `id6767838845`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Rizvan Adzhoian
- **Category:** Utilities
- **Version:** 1.0.1
- **Last updated:** 2026-05-14
- **First published:** 2026-05-11
- **Size:** 33 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/il/app/solar-production/id6767838845)
- **Website:** [https://tradetools.dev/](https://tradetools.dev/)
- **Privacy policy:** [https://tradetools.dev/privacy-policy.html](https://tradetools.dev/privacy-policy.html)

## Description

Solar Production - professional NEC calculator for electricians. Offline, permit-ready.

Solar Production Estimator helps solar energy professionals estimate annual and monthly energy production for PV systems across all 50 US states and DC.

FEATURES:
- Annual and monthly production estimates using NREL TMY3 irradiance data
- All 50 US states plus District of Columbia
- Tilt and azimuth angle correction for non-optimal orientations
- System loss factor (wiring, inverter, soiling, shading)
- Panel degradation modeling over system lifetime
- Specific yield (kWh/kWp/year) calculation
- Performance ratio and capacity factor metrics
- Daily average production output

CALCULATIONS:
- Annual Production = System Size x Irradiance x (1 - Losses) x Degradation Factor
- Monthly breakdown with state-specific solar resource data
- Tilt/azimuth correction based on deviation from optimal
- Degradation Factor = (1 - rate)^age for aging systems

OPTIONAL PRO UPGRADE - $2.99 ONE-TIME IN-APP PURCHASE
The following features require a separate one-time in-app purchase. They are not required to use the calculator:
- Unlimited saved calculation history
- PDF export of results
- Dark theme
- Ad-free experience

UPGRADE TO PRO:
- Remove banner ads
- Unlimited calculations
- Dark theme support

Designed for solar installers, engineers, and PV system designers working in the United States.

## Rankings

- #1,738,228 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6767838845)