---
title: Do we need an inverter cooling if only a constant load is required?
description: TRUE or FALSE? We don’t need an Inverter for processing cooling as only constant load is required
---
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# [Do we need an inverter cooling if only a constant load is required?](https://www.daikinapplied.uk/news-centre/true-or-false-we-dont-need-inverter-technology-for-processing-cooling-as-only-constant-load-is-required)
Written by [esther](https://www.daikinapplied.uk/news-centre/author/esther) | Feb 2, 2021 11:00:00 PM
Unfortunately, there are **myths around in the industry**; in fact no sector is immune to. **Daikin** believe they can do their part by putting their **expertise and knowledge and provide clarity**. To **clear up these misbeliefs**, Daikin have created a series of the most common myths in the industry and are going to be **MYTH BUSTING**.
There are many myths in the **commercial heating, cooling and ventilation sector (HVAC)**, and **Daikin** would like to help people **recognise what is true and what is no**t. It is well known that the **Inverter** is an** electronic power component that, varying the frequency** of the **motor power supply,** **modulates the compressor rotational speed (RPM)** and in turn, **controls the compressor capacity**.
*Read more [here](https://www.daikinapplied.uk/news-center/applied-talks-ep-1-inverter-technology/) about the benefits of using **inverter technology***
This technology is often thought as being **responsible for helping chillers and heat pumps deliver highly efficient performances,** particularly when it comes to **part load efficiency**. It is often thought that this technology is not necessary in applications that only require** constant load.**
For instance, we don’t need **inverter chillers** for **process cooling** as only **constant load** is required, and the unit(s) will never have to operate at **partial load**.
#### Is this TRUE or FALSE?
The answer is **false**.
Applications such as[**data centers**](https://www.daikinapplied.uk/solutions/it-cooling/)**, food processing **or projects that require** cooling of [industrial](https://www.daikinapplied.uk/solutions/industrial/) machinery** are usually thought of as requiring **constant cooling/heating loads** during the year. However that does not mean the **chiller** will operate in the same conditions throughout the entire year. In fact, to ensure that the **load request** in applications such as** data centers or food processing is always satisfied**, the **chiller is designed to provide the appropriate cooling capacity** in the **worst operating condition** for the **specific climate region (design conditions).** But while the** load request** **is constan**t during the year, the **ambient temperature is not.**
The chosen unit must be able to **provide the required capacity** at design condition, whilst for majority of the year it **will operate at different (more favourable) outdoor ambient** **temperature** conditions than those specified as design conditions. This will require the **chiller to operate at part load for some of the year** and this is exactly why **Inverter technology might still be required** in applications that need **constant cooling/heating loads during the year**. Because during those times of the year, the chiller will operate at **conditions differing to that at design**, it will also perform differently in terms of **energy efficiency** without the help of **inverter technology.**
##### Here is an example!
Let’s consider the **application of fresh milk storage**. Milk is produced **all year round,** and the application is one that** requires constant cooling load.** Considering a 3,000 kW system with 3 chillers, each delivering 1000 kW of **cooling capacity.** **Daikin Inverter technology** ensures a far **better performance than fixed speed technology**, which also translates into **substantial savings on operating costs.**
See the number below!
| Location | ENERGY SAVINGS | SAVINGS ON OPERATING COSTS | ROI |
| --- | --- | --- | --- |
| South Europe | 262542 kWh/year | 39460 EUR/year | 8 months |
| Central Europe | 251770 kWh/year | 25177 EUR/year | 12 months |
| North Europe | 223752 kWh/year | 13716 EUR/year | 22 months |
Are you working on a project requiring **Inverter technology** for greater energy efficiency? Then, get in touch with the form below!
[View full post](https://www.daikinapplied.uk/news-centre/true-or-false-we-dont-need-inverter-technology-for-processing-cooling-as-only-constant-load-is-required)
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