Excel is still regarded by many energy companies as the classic tool for data management and process control. Over the years, the spreadsheet has established itself as a versatile solution – from the customer database in Excel to billing and reporting. But this is exactly where problems can arise: Excel is neither particularly secure nor efficient. Errors creep in, processes are difficult to scale and the system quickly becomes confusing as data volumes grow.
At a time when the digital transformation in the energy industry is developing rapidly, modern companies are relying on specialized IT solutions for energy supply companies to digitize manual processes. This change has many benefits – including greater efficiency, lower costs and significantly improved IT security for energy suppliers.
Why Excel is becoming a problem in energy companies
In theory, Excel is easy to use, quickly available and flexibly customizable. This is exactly what makes it so popular. But for Energy companieswhich often have to juggle large volumes of customer data, billing processes and regulatory requirements, Excel has decisive disadvantages.
A typical example is the management of a customer database with Excel. Here, customer names, contracts and invoices are maintained manually in tables. But what happens if an important file is lost? Or if an employee accidentally enters incorrect data? Such errors are difficult to detect in Excel and can cause major financial damage.
It becomes even more critical when several employees need to access the same file at the same time. Excel is not designed for working in teams. Versions overlap, changes are not automatically synchronized and you end up losing track of which data is up-to-date.


Another major risk: IT security
In times of increasing cyber threats, IT security is a key issue for energy suppliers. Excel files are easy to manipulate, often unencrypted or easy to decrypt and can quickly fall into the wrong hands. In addition, Excel processes that depend on macros (i.e. execute code in the background) must be executable on the users’ systems, which allows false Excel files to be executed with malicious code.
Protecting sensitive customer data is a top priority – and this is precisely where Excel fails.
Why the digitalization of processes is essential for energy companies
The digitalization of processes is no longer just a way of making work easier, but a must. It enables companies to automate existing processes, reduce sources of error and cut costs. But what exactly does it actually mean to digitize processes?
Examples of digitalization projects in the energy industry
The digital transformation in the energy industry encompasses numerous areas – from managing customer data to monitoring networks.
These examples show that process automation not only saves time and money, but also helps to improve IT security for energy suppliers increase.
Challenges of digitalization in the energy sector
Of course, digitalization does not only bring benefits. Companies often also face a number of challenges when they decide to change their processes.
One of the biggest challenges is developing the right IT strategy. Although many energy companies know that they need to digitalize their processes, they are unsure about how they should actually implement the changeover. This is where IT strategy consulting can help to analyze the company’s individual needs and find suitable solutions.
Another hurdle is employee training, as new systems require new skills. It is therefore not enough to introduce new software – employees also need to understand how to use it effectively.

How can an IT strategy be developed for energy companies?
Conclusion: Why energy companies should leave Excel behind
The shift towards digitalization in companies is inevitable – especially in the energy sector. Companies that continue to rely on outdated tools such as Excel not only risk losing data, but also incur high costs due to inefficient processes.
Switching to modern software solutions helps to automate business processes, improve IT security and remain competitive in the long term.
Now is the right time to leave outdated systems behind and enter the digital future.
FAQ on digitalization in the energy industry

SOFTWARE ARCHITECT
Lucas Jan Lischka has been part of our BAYOOTEC team for 7 years. He started out as a software developer and has been contributing his expertise as a software architect for one and a half years.
As a physicist, he has a deep understanding of energy industry interrelationships and is particularly enthusiastic about the interface between technology and energy. His strength lies in analyzing complex data structures and turning data chaos into clear, efficient systems – be it in SQL databases, software architectures or in his free time when precisely assembling LEGO models.
With his analytical eye, his structured approach and his passion for sustainable solutions, Lucas makes a significant contribution to BAYOOTEC’s success story.