Multiple columns in the x-axis of a chart

Hello Sugar Club,

We are currently trying to generate charts that illustrate our customers’ energy consumption. Our goal is to create a graph where the y-axis represents the total energy capacity (in given units) and the x-axis represents time in years.

So the chart should look like this:

But this is only working if we use multiple module entries for each forecasted year.

The entry for each company in our sugar looks like this:

So what we need is a chart with multiple columns in the x-axis. For each customer, the sum of all customers and a part of our customers. 

Unfortunately, we couldn’t find a way to incorporate the dates differently in the field section, despite experimenting with alternative fields such as dropdown fields. We also tried various report types but couldn’t find a chart that uses all power entries (Leistung 2025, Leistung 2026, Leistung 2027, etc.) in one chart.

Is there anything we can do better?

Thank you in advance.
Ingmar