---
title: "CS 23.2525 System power generation, storage, and distribution — CS-23 · Avioverse"
description: "The power generation, storage, and distribution for any system must be designed and installed to:"
url: "https://avioverse.aero/regulations/easa/cs-23/subpart-f/cs-23-2525"
---

# CS 23.2525 System power generation, storage, and distribution

Normal-Category Aeroplanes (CS-23) · CS-23 · EAR revision 13 May 2026

IR Implementing rule

## CS 23.2525 System power generation, storage, and distribution

The power generation, storage, and distribution for any system must be designed and installed to:

(a) supply the power required for operation of connected loads during all intended operating conditions;

(b) ensure no single failure or malfunction will prevent the system from supplying the essential loads required for continued safe flight and landing; and

(c) have enough capacity, if the primary source fails, to supply essential loads, including non-continuous essential loads for the time needed to complete the function, required for safe flight and landing.

IR · CS 23.2525 — CS-23 · ED Decision 2017/013/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC1 23.2525 System power generation, storage, and distribution

ASTM F44 F3264 Standard Specification for Normal Category Aeroplanes Certification

9.6 System Power Generation, Storage, and Distribution

F3061/F3061M-24a Standard Specification for Systems and Equipment in Small Aircraft F3231/F3231M-24 Standard Specification for Electrical Systems for Aircraft with Combustion Engine Electrical Power Generation F2490-20 Standard Guide for Aircraft Electrical Load and Power Source Capacity Analysis F3233/F3233M-23b Standard Specification for Flight and Navigation Instrumentation in Aircraft F3117/F3117M-24a Standard Specification for Crew Interface in Aircraft

F3120/F3120M-20 Standard Specification for Ice Protection for General Aviation Aircraft

Remarks

ASTM F44 published standards for showing compliance for electrical systems that are installed on aeroplanes with electric or hybrid-electric propulsion systems. EASA has not yet accepted F3316-19; however, EASA would take into consideration applications from applicants that use this standard as the basis for the development of their means of compliance subject to agreement with EASA.

\[AMC & GM to CS-23: Issue 4]

\[AMC & GM to CS-23: Issue 5]

AMC · AMC1 23.2525 — CS-23 · ED Decision 2026/003/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC2 23.2525 System power generation, storage, and distribution

CS-23 Amdt 4

23.1303 Flight and navigation instruments

23.1331(b), (c) Instruments using a power source

23.1351(a), (b), (c) Electrical Systems – General

23.1353 Storage battery design and installation

23.1357 Circuit protective devices

Remarks

At variance with CS 23.1357(b) and (d), EASA does not accept a protective device for a circuit essential to flight safety in designs applications after the date of entry into force of the AMC & GM to CS-23 Issue 4; automatic fuses or circuit breakers should be used instead.

AMC · AMC2 23.2525 — CS-23 · ED Decision 2023/002/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

AMC Acceptable means of compliance

## AMC3 23.2525 System power generation, storage, and distribution

CS-VLA Amdt 1

VLA 1303 Flight and navigation instruments

VLA 1331 Instruments using a power supply

VLA 1351 Electrical Systems – General

VLA 1353 Storage battery design and installation

VLA 1357 Circuit protective devices

Remarks

At variance with CS-VLA 1357(b) and (d), EASA does not accept a protective device for a circuit essential to flight safety in designs applications after the date of entry into force of the AMC & GM to CS-23 Issue 4; automatic fuses or circuit breakers should be used instead.

AMC · AMC3 23.2525 — CS-23 · ED Decision 2023/002/R · CS-23 Easy Access Rules · EAR revision 13 May 2026

[All rules in SUBPART F — SYSTEMS AND EQUIPMENT](https://avioverse.aero/regulations/easa/cs-23/subpart-f)

Consolidated from the EASA Easy Access Rules (revision 13 May 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.