## What is continuous Power (COP) Rating?

Helpfully, ISO-8528-1:2018 defines basic generator set rating categories based on four operational

categories: Emergency Standby Power (ESP), Prime Power (PRP), Limited-Time Running Prime (LTP) and Continuous Power (COP). In each category, a generator set’s rating is determined by maximum allowable power output in relation to running time and the load profile.

Incorrectly using these ratings can lead to lower generator life, invalid warranties and in some instances terminal failure.

So what is Continuous Power? The continuous power rating is used for applications without a grid power connection, or for units running grid-connected and exporting continuously, relying upon the generator set to provide a steady and constant load for an unlimited number of hours annually. Applications would include remote power plants, using multiple generator sets to achieve a constant load, a “base-load power station.” A base load is the minimum amount of power that a utility must make available to meet a consumers demand for power.

### What is the Load Factor on a Continuous Power generator?

ISO-8528-1 states that a COP-rated generator set must provide power for an unlimited number of hours per year under the agreed operating conditions subject to maintenance levels. No overload is dictated by the ISO standard. Just like the LTP rating, ISO-8528-1 allows the 24-hour average load factor to be up to the full COP rating. Typically, this is around 70% of the Prime Rating or PRP.

If you don't need to supply power at a fixed load? Consider some of the other ISO 8528-1 Ratings:

### What alternative ratings are there to Continuous Power?

If the Prime Power Rating doesn't suit your requirements, you can consider buying a generator at an Emergency Standby Power (ESP), Prime Power (PRP) or Limited-Time Running Prime (LTP) rating.

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