Energy Savings with the ESO System at Shell Gas Stations

1. Introduction

The Shell gas stations of Paolo Vicentini GmbH faced the challenge of reducing energy costs and improving operational efficiency. In 2016, the ESO system was installed to reduce both active and reactive power, thereby minimizing energy costs. The result was significant savings of up to 18.4% in energy costs.

2. Initial Situation and Challenge

The Shell gas stations were experiencing high energy costs due to the operation of their fueling systems and the associated inductive loads. It was necessary to find an efficient solution to reduce both active and reactive power, thereby reducing operating costs in the long term.

3. The Solution: The ESO System

The installation of the ESO system led to a significant reduction in both active and reactive power at the gas stations. Through harmonic filtering and consumption optimization, substantial savings were achieved. An analysis of consumption data showed that monthly energy costs were significantly reduced despite higher fuel sales:

• Nieder-Olm: Reduction in energy costs by 9.4% from €1,625 to €1,515, with an increase in fuel sales by 2.7%from 633,000 to 650,000 liters. This demonstrates improved energy efficiency, as costs decreased despite an increase in fuel sales. Energy costs per 1,000 liters of fuel decreased from €2.57 to €2.33, representing an improvement of 9.3%.
• Gau-Algesheim: Savings of 9.5% in energy costs, reduced from €1,886 to €1,707, while fuel volume increased from 683,000 to 710,000 liters, an increase of 4%. Energy costs per 1,000 liters dropped from €2.76 to €2.40, indicating an efficiency increase of 13.0%.
• Bad Kreuznach: Savings of 18.4%, with energy costs reduced from €2,286 to €1,865, while fuel sales increased from 504,000 to 520,000 liters, an increase of 3.2%. Energy costs per 1,000 liters decreased from €4.54 to €3.59, a reduction of 20.9%.

The largest savings were achieved by reducing harmonics, which had a significant impact on network losses.

4. Results and Benefits

• Significant Cost Savings: Installing the ESO system led to energy cost savings of up to 18.4%, making the operation of the Shell gas stations significantly more economical.
• Reduction of Active and Reactive Power: By filtering harmonics and reducing reactive power, energy costs were reduced in the long term.
• Economic Advantages: The achieved savings ensured that the investment in the ESO system paid for itself within a short period and effectively financed itself.

5. Conclusion

The Shell gas stations of Paolo Vicentini GmbH were able to achieve significant energy cost savings by installing the ESO system. Savings of up to 18.4% demonstrate the vast potential of ESO technology for energy optimization. The reduction of active and reactive power, along with increased network stability, contributed to an economic and sustainable optimization of operations.

The ESO system enabled the Shell gas stations to lower their operating costs while contributing positively to efficiency and sustainability. The results speak for themselves, showing that ESO technology is an effective solution for small and medium-sized businesses looking to reduce energy costs and enhance operational efficiency.