EV Station Load Sizing
Chargers, diversity, service
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Size charging sites like an engineer: diversity, feeder current and transformer kVA for multi-charger sites — instant results, fully offline.
The electrical designer's sizing tool for commercial EV charging sites — chargers to transformer in one honest screen.
Add charger groups (7.4, 11, 22 kW AC · 50, 150, 350 kW DC fast, or any custom rating), apply a diversity factor you control, pick the supply (230 V 1φ · 400 V 3φ · 480 V 3φ, adjustable power factor) and read the results instantly: connected load, expected demand in kW and kVA, feeder current with the ×1.25 continuous-load design value (NEC 625.41), and the next standard transformer size from the ANSI/IEEE C57.12.00 ladder at ≤ 80% loading.
Planning a capped connection? Set the site power limit and see the equal-split power each charger gets under load management (ALM/EVEMS, NEC 625.42).
PRO
• Unlimited chargers and groups (free sizes up to 2 devices)
• Site-cap load sharing with per-charger power
• Transformer sizing: required kVA, standard unit, loading verdict
• Save site assessments to history
• Clean one-page PDF reports with the full assumptions list — ready for the project folder
Built for the field: big controls, huge results, Outdoor Bright mode for direct sunlight.
Everything stays on your phone — fully offline, no account, no tracking.
Diversity is an assumption: results are planning estimates and require engineered project approval.
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Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://hdappstudio.com/evstationload/privacy/
Ratings & Reviews
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The developer, HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI
- Size
- 10.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, Arabic, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- EV Station Pro — Lifetime $29.99
- EV Station Pro — Yearly $14.99
- EV Station Pro — Monthly $2.99
- Copyright
- © 2026 Ercan Onur Ensert