Skip to content

3 Ways Explainable Machine Learning Can Reduce Factory Emissions This Earth Day

By: Berk Birand 1652968907879
• April 2021
Chandan chaurasia L Rt MM a JX1s unsplash

Industry is a major contributor to greenhouse gas emissions. In the US, factories account for roughly a quarter of emissions, falling behind only transportation and electricity.

Factory pollution is mainly caused by two processes: burning fossil fuels for energy, and the chemical reactions that turn raw materials into finished products.

Traditionally, emissions reduction took a back seat to manufacturers' other objectives, such as cost minimization and increasing throughput. However, recent advances in artificial intelligence have led to the creation of explainable machine learning software. Using such technology, industrial engineers can work on reducing emissions while simultaneously achieving their other goals.

Here are three ways explainable machine learning can reduce factory emissions:

It lets manufacturers tackle emissions without compromising other priorities.

Industrial engineers face a daunting balancing act, forced to balance financial goals with quality targets such as producing strong enough steel or chemicals with the appropriate viscosity. In this context, the idea of minimizing emissions often falls by the wayside.

But with machine learning, this cumbersome process can be automated. Today's engineers don't have to choose between competing objectives—rather, they can simply upload plant data and tell the software what their goals are. By analyzing this data through machine learning, the software can pinpoint the settings that must be adjusted in order to achieve all the goals, making emissions reduction no more burdensome than any other task.

The key difference between this kind of industrial-specific machine learning and other applications is explainability. Most applications of machine learning at technology companies like Netflix and Uber are based on black-box algorithms. They give you predictions (i.e., what movie you'll enjoy), but don't have to reveal how they came up with them, as this information has little benefit for the average user.

Industrial machine learning, in contrast, requires explainability. When optimizing for emissions reduction, a black-box model that simply predicts results is far less useful than understanding the complex interplay between different factory settings and how changing them affects the volume of emissions produced.

It eliminates the need for emissions-causing tests.

Traditionally, manufacturers must suspend production to experiment with new settings. In contrast, explainable machine learning lets engineers test hypothetical "what-if" scenarios without running a single real-life test.

By creating a digital twin of the plant, they can simulate how past results might have changed with different settings, or tinker with future production settings to achieve optimal quality. This avoids (or minimizes) physical testing, preventing additional emissions.

It improves production yields and efficiency.

Despite advances in manufacturing technology, engineers still can't always explain inconsistent yields—in other words, why the same quantity of input materials produces a different quantity of outputs.

Using explainable machine learning, it's finally possible to understand what factors drive these inconsistencies, and to optimize around them.

Steel production, for instance, requires combining various scrap metals until the result reaches a certain quality. With machine learning, engineers can predict exactly the amount of raw materials they need. By improving yields and efficiency, they can operate the steel plant for less time to produce the same result—tackling one of the biggest causes of emissions, burning fossil fuels.

As society coheres around the need for emissions reduction, new regulations increasingly require manufacturers to commit to certain standards. Machine learning software offers a way for them to kill two birds with one stone. By optimizing their processes for maximal efficiency, they're not only satisfying regulators—they're achieving their own quality and cost-saving goals.

Originally published in AIthority.