Intergrating EV charging stations into shops
Delta reshapes Idemitsu Showa Shell gas station in Yokohama Japan

Text by: EISBG, DEJ marketing

Facing major trends in green energy, energy-saving, carbon reduction, and digital transformation, many petroleum companies have started exploring new business directions and service structures following the growing popularity of electric vehicles (EVs). A global leader in power management, Delta has cooperated with Idemitsu Showa Shell, the second-largest petroleum company in Japan, to renovate the Idemitsu Showa Shell gas station (which operates gas stations all over Japan) in Yokohama as an EV charging station.

This demonstration station integrates IoT (Internet of Things), V2X (Vehicle to Everything) and Smart Grid technologies to provide not only charging services, but also café services and retail IoT applications. From planning, reconstruction to operation, it were completed through coordination between Delta and Idemitsu Showa Shell. This innovative business model helps traditional gas stations find new directions to promote businesses such as department stores, marketplaces, parking lots, and even theaters, all of which will make EV charging services more convenient in the future.

Transforming gas stations into charging stations and cafés
Given Delta’s experience implementing complete charging and energy storage solutions and their ability to develop smart energy management systems, the company has a proven track record in providing complete one-stop-shop solutions. When Idemitsu Showa Shell decided to transform its gas station, they sought to cooperate with Delta to transform their older gas station in Yokohama into an EV charging station. Reconstruction involved removing all the oil tanks originally located under the building and converting the vehicle maintenance and oil change rooms into commercial power conditioning systems (PCSs) and battery energy storage systems (BESSs). Additionally, aboveground refueling equipment became parking spaces for an unmanned parking system with three Delta DC Wallbox EV chargers and one V2B (vehicle-to-building) bi-directional EV charge and discharge charger. The carwash was transformed into the Innergie café with high ceilings and bright spaces, and retail IoT solutions such as large projection equipment and air quality management were introduced. The small retail store attached to the gas station was transformed into a multifunctional exhibition space for art exhibitions, and the offices on the second floor were transformed into a monitoring center. This allowed managers to remotely monitor operations including the electricity usage of chargers and operation status of environmental equipment. After the gas station was transformed into a charging station, the electrical facilities were also changed to 400 V. For safety, Delta equipped the station with various sensors to monitor for water leakage, water levels, and earthquakes in the electrical room. This was configured so that in the event of a natural disaster, such as flooding, tsunamis, and earthquakes of magnitude 5 or higher, the electrical system will automatically cut power to avoid accidents.

IoT + V2X + Smart Grid create a new generation of charging stations
When entering the charging station area, drivers will receive an automatic prompt from Delta’s patented EZQC App payment system, which has simple registration and verification processes that do not collect personal information. Only three simple steps to perform charging or electricity-selling, and payment can be settled with a credit card or service such as Apple Pay. It takes approximately half an hour for each charge, giving EV owners an opportunity for rest at the café to also recharge themselves both physically and mentally. While waiting, they can use the E-coupons provided by the EZQC App payment system and enjoy a cup of coffee at the café, or shop at nearby cooperative stores.

The café is equipped with Delta’s Innergie One-For-All power adapters, allowing customers to charge their mobile devices while waiting \ their EV to charge. 

Mobility + Utility five major solutions with modular integration
Delta’s energy infrastructure solutions, including PCSs, BESSs, and EV chargers, the DeltaGrid® energy IoT management platform was integrated with the EZQC payment system to provide an improved user experience and innovative services that together have created a new business model where mobility and the utility of power infrastructure are compatible. This demonstration station consists of five major solutions designed by Delta. 

Modularize five major solutions to integrate “Mobility” and “Utility”

1. EV Charging and Payment System Solutions:
This includes charger installation, EZQC App mobile phone application development, and payment mechanism integration. This demonstration station has three 25-kW DC output DC Wallbox wall-mounted chargers and one V2B EV bi-directional charge/discharge charger.
2. Energy Storage Solution (ESS):
Through the deployment of Delta’s commercial PCS, BESS, and control equipment, peak-shaving and optimized contract capacity were achieved. When multiple vehicles enter the station and use the quick charge service simultaneously, this places pressure on the power grid. In such instances, Delta’s ESS will allow the station to keep within the optimal contract capacity plan and achieve economical operating results.
3. Emergency Power Supply System:
Should a disaster interrupt the power supply, the station can provide power supply services for “refuge-like facilities.” Because the station is equipped with a V2B bi-directional EV charge/discharge charger, EVs can be used to supply power back to the grid. Furthermore, because the EV charging station is equipped with a portable battery, it can be used to serve surrounding residents during a power outage, supplying emergency power to achieve business continuity planning for post-disaster communications and life support.
4. Retail IoT Environmental Management System:
This enables automatic monitoring and adjustment of environmental conditions in the café, including temperature, humidity, lighting and air-conditioning, thus achieving optimal environmental comfort and energy conservation. 
5. Digital Projection Solution:
High-lumen projectors display high-quality images for stores to project anything from advertisements to movies. They can also be used for retail digital signage or even to display paintings or other artwork, thus enhancing the customer experience.

Delta’s leading technologies provide comprehensive solutions
Faced with the prospect of extreme climate disasters resulting from the greenhouse effect, countries around the world are pushing green energy and carbon reduction strategies to reduce dependence on traditional petrochemical energy. The promotion of EVs is among this effort, and the convenience of charging is a key factor as to whether EVs can become more popular in the future. Delta has accumulated a wealth of experience in power products for over half a century and has complete product lineups, system development experience, and Energy IoT technologies, making them able to provide customized one-stop solutions. 

Delta’s Yokohama EV charging station demonstrates a new operation model that combines charging services and mall functions. This model could easily be copied to other cases or different industrial fields to help realize Utility 3.0 objectives.