Sharge

A private charging pile sharing platform for EV users' convenient and economic charge.
Design Team:
2 PMs, 4 Designers
My Role:
Product Positioning, User Research, Concept Design, Prototype Design
Timeline:
Jan. 2022 - Mar. 2022

OVERVIEW

What is the problem?

Many EV users do not have their own private charging piles. Charging experience is awful for them when using public piles.

Our Design

Sharge is a private charging pile sharing platform for EV users' convenient and economic charge.

Sharge is based in China.  The large-scale residential units in Chinese cities have huge concentrated parking lots, facilitating convenient private charging pile sharing. Also, residential electricity is much cheaper than commercial one, which is an important opportunity.

1

Customers' Flow:

Schedule a Charging Pile

Customers can find available piles easily in specific place and time. Estimated price, ratings & reviews, photos, and many other datils are provided before making reservations.

2

Customers' Flow:

Get Charged

Upcoming and finished reservations can be seen both in list and calendar views. Customers can start their charge from them easily, spend time in the amenities nearby and got notified when finishing.

3

Hosts' Flow:

List a Pile

Expected monthly earning is given after a very short evaluation to motivate private pile owners to join. Last-mile way finding is improved by the platform and hosts to give you the step-by-step navigation.

4

Hosts' Flow:

Add Available Time

After listing your pile, a pile page is added to the reservation section. It can help managing the available time and customers' reservations easily, no conflicts with the functions as a customer.

RESEARCH

Research Methods

Secondary Research

27

articles on EV use, charging and infrastructure construction

42

social posts
about EV owners’ personal experience

7

Youtube videos
of EV chargins measurements

Primary Research

17

survey responses
to access target users

4

EV user interviews for problem details

Context

Begin to take shape

By end of 2021, there are 6.4million EV in China national wide, which takes 2.1% of total car numbers.

Increase rapidly

Compared with 2020, the EV growth in 2021 increased 59.25%.

Insufficient personal pile

By 2021, there is a shortfall of 2.53 million private charging piles, accounting for 39.53% of total EV users.

Why don’t some EV users own private charging piles?

Hardware does not support

The lack of their own parking spaces, or the inability to install qualified wiring in their parking spaces, prevents a large proportion of EV users from owning private charging piles.

Unwilling to invest

Due to work, life and other reasons. People in big cities are uncertain and mobile. Most of them line in rent apartments. Therefore, they are reluctant to invest in charging piles for long-term use.

Economic insufficient

Economical vehicles under ¥150K($23K) takes a large percent of EV sales in China. Charging pile installation cost itself is also an important reason to hinder many users.

What are the problems of using public charging piles instead of private ones?

1

Price

Industrial and commercial electricity price is 1.25-1.45 times higher than residential one. Including land rent, construction costs, and so on, public charging fee is about three times higher than private ones.

"

The charging pile I used is ¥1.49/kW·h, which is equivalent to 4.9L/100km fuel consumption for gasoline vehicles. Compared with hybrid models, there is no great advantage.

​—— Mr. Jiang

2

Convenience

Driving to public piles and charging takes more time and steps than on private ones. What’s more, you need to be vary careful with the finishing time since taking the space over time after finishing brings a penalty.

"

The nearest Tesla super charging piles are half an hour away from me. The charging power of the other piles closer is not ideal.

—— Ms. Ning

"

There was once I engrossed in chatting with a friend and forgot about my charging, which brought me a lot of fines.

—— Mr. Jiang

3

Availability

Due to the uneven frequency of use, charging stations can hardly fully meet the charging demand during peak hours, which will lead to several hours waiting in the queue. In addition, charging piles are still unavailable or not maintained well in many areas.

"

Every Friday there's a long line at the charging piles under my office building.

—— Mrs. Zhu

"

Once I had to drive on a business trip the next day and my car needed charging. But all the communal public piles in my community are occupied. I had to go downstairs again late at night to find an available one.

—— Mr. Jiang

HMW help the EV owners without their private charging piles?

User Journey of Public Charging Piles

User Journey Insights

1

Last-mile way finding to the charging pile in the parking lot is difficult for customers.

Due to the limitations of existing satellite navigation system technology, accurate navigation within the residential area, especially in underground parking lots, is almost impossible.

2

Finding the charging pile not working after arriving greatly damages the use experience.

Many existing public charging piles are not well maintained now. Driving to a charging pile and then finding it doesn't work leaves consumers frustrated and angry.

3

Overtime penalty brings huge psychological pressure to consumers during charging.

Estimate charging time cannot be very accurate. However, taking the space after finish will bring fines, much more expensive than charging fee.

4

Listing charging piles is more troublesome than charging. An unfriendly listing procedure prevents pile owners from becoming hosts.

Uploading information and getting verified is a cumbersome process. Many hosts are therefore reluctant to try.

IDEATION

Customer Persona

Enhanced Customer's Flow: Schedule a Charging

Enhanced Customer's Flow: Conduct a Charging

Host Persona

Enhanced Host Flow: List a Pile for Sharing

Find a Pile to Charge

Rent a Pile for Earings

Design Iteration

Highlight Competitive Price

Prioritize Pile Property That Users Care

Polish Details to Be Intuitive

Highlight the Important and Fold the Secondary

Design System

REFLECTION

Next Steps

  • More user tests and more iterations of existing designs.
  • Check in with out client and get their feed back.
  • Further development of Profile section.
  • Design the prototype on EV central control screen.
  • Work with engineer to develop the first beta release for more tests.

@ 2024 Fang Xu