Renewable Proof,
Hour by Hour

Renewable electricity has often been accounted for with an annual ledger: add up a company’s power use for the year, then obtain an equivalent amount of renewable-energy attributes. A new generation of tracking systems asks a harder question. Was clean power generated during the same hour in which the electricity was consumed?

TISI Inc. and UPDATER, Inc. said on August 28 that they had begun implementing an hourly-matching function for EneLink (“エネLink”), TISI’s core platform for electricity retailers. The companies conducted technical testing with UPDATER’s operating data during fiscal 2025 and are targeting December 2026 for a software-as-a-service launch.

The project will incorporate matching logic and blockchain technology from UPDATER’s ENECTION electricity-tracking system. Generation records, customer-use records and the associated environmental attributes can then be linked by time period and presented to a retailer or customer as evidence of how closely procurement followed consumption.

How Half-Hour Records Support Hourly Claims

The two intervals are not contradictory. UPDATER says its system compares and manages metered generation and consumption in 30-minute blocks. Those finer records can be aggregated to determine whether renewable generation and electricity use correspond over each one-hour accounting window.

Annual matching can hide large differences in timing. Solar output falls to zero at night, wind varies and power demand changes from one hour to the next. A customer may procure enough renewable attributes to cover total annual consumption without demonstrating that renewable output was available when a particular load was operating.

Hourly matching exposes that gap. It does not trace individual electrons through the shared transmission grid. The system matches metering data and records of environmental value; it establishes an accounting relationship between generation and use rather than a dedicated physical route from one power plant to one customer.

A Proposed Change to Scope 2

Scope 2 under the GHG Protocol covers indirect emissions associated with purchased electricity, steam, heat and cooling. In October 2025, the standard-setting organization opened consultation on revisions to its 2015 guidance. A central proposal would add hourly matching and deliverability requirements to market-based reporting.

The proposal is not a final standard. The GHG Protocol says it will analyze consultation feedback, conduct a second consultation on Scope 2 topics in 2026 and publish the new standard in 2027. The draft also contemplates load-profile approximations where hourly data are unavailable, exemption thresholds, protection for existing contractual commitments and phased implementation.

TISI and UPDATER are therefore building for a moving target. If the final standard changes the treatment of locations, certificates, missing data or transition periods, the platform’s calculations and evidence will have to change with it.

Connecting EneLink and ENECTION

EneLink is TISI’s suite for electricity and gas businesses. The module involved here is its electricity CIS and retail-core solution, which handles functions such as customer data, contracts, billing and rate calculation. CIS is short for customer information system.

The companies say UPDATER’s tracking capability will be offered as SaaS that can operate separately from an existing CIS, limiting the need for a major core-system rebuild. Combined with EneLink’s corporate power-purchase-agreement billing service, the planned offering is intended to connect generation and load records, calculate PPA charges, and place matching results on portals or bills.

Those are product objectives, not measured outcomes. Neither company has disclosed implementation costs, integration time, system-availability targets or a customer case showing that the new configuration reduces expense.

Commercial Scale Is a Company Claim

UPDATER says it commercialized blockchain-based electricity tracking in 2018 and now operates across more than 600 renewable generating sites and more than 4,000 demand facilities. TISI says its electricity CIS has been adopted by 30 companies.

Those figures—and the descriptions “world first,” “Japan’s only” and “one of Japan’s largest”—come from the companies’ releases. The announcement pages do not provide a facility list, a third-party operating audit or a complete market comparison. Japan.co.jp therefore reports them as company claims rather than independently verified rankings.

The same caution applies to EnergyTag. UPDATER says its system was designed with EnergyTag requirements in mind and that accreditation was pending as of August 2026. EnergyTag itself says accreditation applies to systems that issue and manage Granular Certificates. It is not, by itself, approval of a carbon inventory, a corporate target or a 24/7 clean-electricity claim.

Hourly matching can make renewable procurement more honest by displaying periods when clean generation did not cover demand. It cannot create additional renewable output on its own. The most revealing feature may therefore be not the hours that match, but the gaps the system is willing to show—and what customers do to close them.