A-Charge | Reference pricing: install from an empty lot (new grid connection)

First, the premise

This is not an invitation to invest

Installing chargers does not guarantee a profit. A-Charge is the intake system for a facility that has already decided to spend on bays or chargers, so it can run them at low cost. Yield is a number the owner calculates and takes responsibility for. After that decision, we help run the site cheaply.

Whether to invest is the facility’s decision. We do not solicit it.
Parking rates and how many cars come are yours. Yield is the owner’s own calculation.
Even in a month with zero sales, about ¥2,000 per charger per month is still charged (flat while sales are about ¥10,000 or less).

Do not judge us by A-Charge port count

Look at I-S3’s electrical construction and monitoring systems—not at how many A-Charge billing sites exist yet. A-Charge is the parking OS built on that work.

Large-scale solar

High-voltage interconnection, self-consumption, repowering, and O&M. Food-plant ~200 kW self-consumption and high-voltage ~500 kW upgrades: live sites, multiple stakeholders, electrical work done safely.

Advanced operations systems

Remote solar monitoring and 30-minute demand sizing, our own RightOS anonymous queue, and an OCPP 1.6 / 2.0.1 central system with load sharing under the site power cap. Not spreadsheets bolted on after the fact.

EV charger installs (AC through DC)

Hundreds of jobs centered on Gunma. Mostly AC (Tesla Wall Connector and similar); over 99.9% of residential jobs finish the same day. Eleven prefectures by our own visits, six in Kansai via partners (17 total). We also design turnkey facility packages that include 50 kW / 120 kW DC.

Billing sites under the A-Charge name are still being added. Installing, isolating, monitoring, and reconnecting electrical plant is I-S3’s core work.

EV installation record 　｜　 Customer stories 　｜　 Primary field notes

Not just new builds—existing and third-party chargers too

We can replace the system on chargers already installed. Even if they run another vendor's billing system, OCPP 1.6 / 2.0.1 compatible units can switch to A-Charge without new hardware.
We can also provide the system for chargers purchased and installed through other vendors. Keep your hardware—run only the system on A-Charge.

Send us the charger model and we will confirm compatibility.

Three representative packages

PACKAGE 1

10 AC chargers (new 50 kW grid connection)

The first step to whole-lot coverage. Hotels, retail, monthly parking.

Item	Reference price (tax excl.)
AC chargers × 10	¥2,200,000
System setup	¥1,000,000
Electrical work (incl. new grid connection)	¥2,000,000

Total (tax excl.)¥5,200,000

PACKAGE 2

50 kW DC fast charger

For short-stay sites and lots along major roads.

Item	Reference price (tax excl.)
50 kW DC fast charger × 1	¥2,900,000
System setup	¥100,000
Electrical work (incl. new grid connection)	¥3,200,000

Total (tax excl.)¥6,200,000

PACKAGE 3

120 kW DC fast charger + 10 AC chargers

A full-scale charging hub. High-voltage cubicle leaves room to grow.

Item	Reference price (tax excl.)
120 kW DC fast charger × 1	¥5,000,000
AC chargers × 10	¥2,200,000
High-voltage cubicle	¥8,000,000
System setup	¥1,100,000
Electrical work (incl. utility pole installation)	¥3,500,000

Total (tax excl.)¥19,800,000

How to read these figures

All figures are reference prices for installations in Japan, quoted in Japanese yen.
All figures are reference prices (tax excluded). A formal quote follows an on-site survey.
Electrical costs vary with connection distance, grid conditions, ground, and paving. Send us photos and the approximate distance to your distribution panel, and we can give you a rough estimate before a formal on-site survey.
The monthly system fee is tiered by revenue and billed separately (see the owners page).
Charger models and counts are freely adjustable—tell us about your site first.
Adding an AC charger later runs about ¥500,000 per unit, for a site that already has power (a brand-new grid connection is quoted separately). Start with the smallest configuration, then add more once you see real usage.

← Back to owner overview

Request a site survey & formal quote

Send us the address and your preferred configuration. We will check grid-connection feasibility and reply with an estimate.

Email us about A-Charge

Phone: 027-384-4646（I-S3 Co., Ltd.）

1311-1 Iizuka-machi, Takasaki, Gunma 370-0069, Japan

Starting from an empty lot—what does it cost?