3.
The agreement must signed the
applicant, affixed with their registered seal,
and accompanied revenue stamp in
accordance with Japan’s Stamp Duty Act.3. the customer
already has compatible smart meter, only
reconfiguration may required.3 Stage Commercial
Agreement
Upon completion the technical review, the
applicant must formalize the interconnection
through series contractual steps with
TEPCO. This begins with the execution a
grid interconnection agreement, which
defines the operational terms, safety
responsibilities, and compliance
requirements for the V2H system operating
in parallel with the distribution grid. most cases, TEPCO installs a
standardized smart meter, pre-configured
for reverse power measurement the
customer's premises. This meter mounted
at the point common coupling (PCC),
sealed with unique identification number,
and registered TEPCO’s asset
management system.
.
• Certification Verification:
TEPCO confirms the authenticity and scope
of the submitted JET certificate, ensuring
that the exact make and model the V2H
charger listed and that the installation
matches certified specifications.PAGE VEHICLE-TO-HOME (V2H) SYSTEMS
HANDBOOK
2.4 Stage Metering and
Installation
Following contract execution, TEPCO
initiates the deployment configuration a
bidirectional smart meter capable of
recording both energy consumption and
export.
Additionally, the agreement includes
consent for installation activation a
bidirectional smart meter capable of
recording both consumption and export.
• Protection Parameter Validation:
Submitted trip settings and relay
configurations are reviewed ensure
compliance with TEPCO’s protection
guidelines for voltage, frequency, and
insulation coordination.
2.
These commercial agreements collectively
establish the legal framework necessary for
safe, regulated, and revenue-compliant V2H
operation within TEPCO’s distribution
network3
. Devices certified JET are pre-
validated disconnect within the required
threshold (≤2 seconds) upon grid outage.3. If
the V2H system configured allow
reverse power flow, such exporting
surplus energy the grid, amendment to
the existing electricity supply contract is
required authorize bidirectional energy
exchange.
• Anti-Islanding Protection
Verification:
The system’s protection functions,
particularly anti-islanding, must comply with
METI regulations and the JEM 1498
standard.
TEPCO verifies system compatibility3
:
• Grid Capacity Assessment:
TEPCO evaluates the capacity the local
distribution transformer and feeder to
handle potential reverse power flow without
overloading the infrastructure.2 Stage Pre-Application
Documentation
Once the required documentation is
submitted, TEPCO Power Grid conducts a
comprehensive technical review assess
the safety, compliance, and grid
compatibility the proposed V2H system.
In such cases, TEPCO may also initiate a
separate power purchase agreement to
define export conditions, compensation
mechanisms, and billing reconciliation.
2
