Clean electricity makes two products.
The power itself — and the proof that it was clean, carried on an I-REC(E) — the International Renewable Energy Certificate for electricity, issued under the I-TRACK Standard.
We put the meter behind the proof — and the proof in front of buyers.
Read at the inverter, every fifteen minutes. Verified and labelled as you generate.
Your Renewable Plant
Generate & Earn
A World of Buyers
Buy · Retire · Report




Your Renewable Plant
Generate & Earn
A World of Buyers
Buy · Retire · Report
Any plant size
C:Pesa DIGIREC®
The C:Pesa DIGIREC® label can be applied to I-REC(E) certificates wherever an Issuer is approved by the I-TRACK Foundation under the International Attribute Tracking Standard.
C:Pesa® Appliances are running at solar sites in several countries with an I-REC(E) Issuer approved by the I-TRACK Foundation.
The Old WayvsThe C:Pesa® Way
We replaced the paperwork with an appliance.
The consultant, the evaluator and the wait all existed to check a number a person wrote down. Ours is written by the plant itself, read at the inverter and recorded on the Xpansiv I-REC(E) Registry.
Same standard. Same Xpansiv I-REC(E) Registry. Enhanced evidence
15 MIN
One appliance. Continuous data. Evidence on every certificate.
One appliance at the inverter
Reads every 15 minutes, sealed
96 readings a dayCertificate carries the evidence
Granularity, Traceability, Location, Time Stamp
96 readings a day, certificates issued by the Issuer after validation, not after paperworkProcess Starts
Minutes
Evidence recorded as the plant generates.
Traditional · 4 Parties, every cycle
60-180 days cycle
Generator Declaration
Consultant prepares the files
Evaluator confirms it
Issuer issues
Day 0
Process Starts
Day 60-180
One Certificate no meter and no hour on it.
A conventional certificate tells you the month. Ours tells you the quarter hour.
Every DIGIREC carries the fifteen minute window its electricity was generated in, read at the inverter and sealed at the source. That's 96 windows a day where a conventional certificate has one block of months.
The environmental value claim
Now the C:Pesa DIGIREC® can be traded like spot electricity.
Clean electricity produces two values: the physical power that feeds the grid, and the environmental proof that certifies it was clean - the measurement and verification data behind the certificate.
Generation to certificate, end to end, without a person in between
A DIGIREC® claim is auto-issued to Xpansiv the moment 1 MWh is generated. The reading is taken every 15 minutes.

The six things that travel with every certificate
Compared to a conventional certificate
- 01New
The appliance that measured it — a named appliance at a named inverter
- 02New
The window it happened in — fifteen-minute resolution, time-stamped
- 03New
The validation event — automated, recorded as its own step in the verification record
- 04Current
The I-REC(E) serial number
- 05Current
The facility and its coordinates
- 06Current
The retirement record — on the registry, once only
Listed the day it's issued, not months after
Buyers see the facility, the generation window and your price before they bid.



The six things that travel with every certificate
Compared to a conventional certificate
- 01New
The appliance that measured it — a named appliance at a named inverter
- 02New
The window it happened in — fifteen-minute resolution, time-stamped
- 03New
The validation event — automated, recorded as its own step in the verification record
- 04Current
The I-REC(E) serial number
- 05Current
The facility and its coordinates
- 06Current
The retirement record — on the registry, once only
Captured for assurance and audit, not reconstructed after the fact.
Every certificate carries its granularity and traceability; Buyers, regulators and compliance managers can verify to meet reporting standards.
Same certificate. Enhanced evidence.
We enhanced the evidence, not the certificate.
Same standard, same registry, same one-megawatt-hour unit. What's different is what you can check.


C:Pesa DIGIREC®
Meter-SealedIssued against
Conventional: A declaration the generator prepares
C:Pesa®: A measurement taken at the inverter
Reading comes from
Conventional: The generator's own systems via 3rd party manual checks via consultants
C:Pesa®: The C:Pesa® appliance reads, organises the verified claim & submits automatically for issuance.
How often
Conventional: Every few months
C:Pesa®: Every fifteen minutes
Time of issue
Conventional: 60-180 days
C:Pesa®: Every 1 MWh produced, a C:Pesa DIGIREC® is auto-issued
Period & Location
Conventional: An undifferentiated block of months with manual confirmation of location
C:Pesa®: A time-stamped fifteen-minute window, GPS coordinates & cryptographically hashed, issued at 15-minute intervals
Evidence
Conventional: Date of issuance, date of redemption
C:Pesa®: You can check its beginning, now and later - the whole chain
Secondary market
Conventional: Bilateral or broker-led
C:Pesa®: To be listed on the marketplace, with bid and offer
Performance Matrix
Conventional I-REC(E)
C:Pesa DIGIREC®Meter-Sealed
A declaration the generator prepares
A measurement taken at the inverter
The generator's own systems via 3rd party manual checks via consultants
The C:Pesa® appliance reads, organises the verified claim & submits automatically for issuance.
Every few months
Every fifteen minutes
60-180 days
Every 1 MWh produced, a C:Pesa DIGIREC® is auto-issued
An undifferentiated block of months with manual confirmation of location
A time-stamped fifteen-minute window, GPS coordinates & cryptographically hashed, issued at 15-minute intervals
Date of issuance, date of redemption
You can check its beginning, now and later - the whole chain
Bilateral or broker-led
To be listed on the marketplace, with bid and offer
A DIGIREC does not constitute a separate certificate. All renewable energy attributes are derived exclusively from the underlying I-REC(E) certificate. The label and associated verification data provide additional information relating to the generation and verification of the underlying I-REC(E).
The certificate is the standard's. The evidence is ours.
Two roles. One market.
You either make the power, or you need the proof it was green.
Both meet on the C:Pesa® Marketplace. Here's what changes for each.
If you generate
Your plant already generates what a certificate records. Most of it is never certified.
The C:Pesa® Appliance at the generation plant.
The plant itself isn't touched or modified.
60-180 days of paperwork per cycle —
so most sites never bother collecting them.
A commodity I-REC(E) is interchangeable.
Yours carries provenance, chain of custody and lifecycle traceability.
If you consume
You're already buying certificates. You can't check any of them.
A registry entry is the entire answer you have when someone asks how you know.
Every certificate arrives with its meter, its minute and its validation event.
Hourly matching, CBAM — the European Union’s Carbon Border Adjustment Mechanism — electricity accounting and Scope 3 supplier evidence all call for it. A periodic declaration can't provide it.
Buy on the C:Pesa® Marketplace, retire against a named beneficiary, export the provenance record.
Verify any retirement yourself on the registry, using its key.
Every size of plant
From a 50 kW rooftop to a utility scale farm.
A certificate is issued for every megawatt-hour, whatever the size of the plant. If your site generates and you own its environmental attributes, it can be registered once our onboarding checks are complete.
The standard we work inside

The I-TRACK Foundation
(Stichting I-REC)
established and governs the International Attribute Tracking Standard, and accredits the I-REC(E) Issuers in each country.

Xpansiv I-REC(E) Registry
Accredited Code Manager, Evident, to implement attribute tracking systems for Accredited Product Codes.
Accredited Issuer
approved by I-TRACK Foundation
I-REC(E)
an exchangeable Energy Attribute Certificate for a unit of renewable electricity, issued under the International Attribute Tracking Standard.
C:PESA DIGIREC® label
approved under the International Attribute Tracking Standard
Same framework. Granularity. Traceability. 15-minute interval metrics.
We enhanced the standard — we deliver stronger, real-time evidence inside it.
What we built, and own
C:Pesa® Appliance
Reads generation at the inverter, every fifteen minutes.
C:PESA DIGIREC®
Registered trade mark of Carbon Pesa Limited
C:Pesa® Platform
Verification, labelling and Marketplace Technology.
C:Pesa® and C:Pesa DIGIREC® are registered trade marks. The appliance, methodology and platform are protected by copyright, database and design rights.
How the record is kept transparent
15-minute telemetry
96 checkpoints every 24 hours, every day
Cryptographic hash
each checkpoint sealed for authenticity and content and timestamped
Held in the C:Pesa® cloud
each checkpoint hashed and time-stamped
Read by the appliance, and automated
issued realtime, traded same day
Verification key
every DIGIREC carries the key of its underlying I-REC(E)
Single retirement
one megawatt-hour, issued once, retired once, never counted twice
Get in Touch
Let's build the future of energy together
Fill out the form below and our team will get back to you within 1 working day.