Built in Jersey for Jersey organisationsTry the quick calculator
🇯🇪 Carbon reporting, built around Jersey

Carbon reporting.
Built for Jersey.

Eco-Active organisations submit an annual return by 31 March. 321ZERO keeps your carbon and environmental figures organised throughout the year, helping you prepare supporting information without a last-minute scramble.

  • No card required
  • Set up in minutes
  • Every factor shows its source

Illustrative dashboard · sample data

Harbour House Hotel
2026
Total emissions8.42 tCO₂e
12.8%
Scope 13.18t
Scope 21.62t
Scope 33.62t
Jersey grid factor0.0589 kgCO₂/kWh
Return ready to export
🇯🇪

Jersey-specific
Local grid, waste and water factors

Report-ready
Eco-Active and business exports

Built for clarity
Useful answers, not carbon jargon

Your data, portable
Download your records at any time

One source of truth

Less reporting work.
More useful progress.

321ZERO keeps your electricity, fuel, waste and travel figures in one place all year — so the annual return is a preparation task, not a scramble. Figures go in once and come out wherever they're needed: your annual return, a board update, a customer's questionnaire.

01

Measure with the right local factors

Use Jersey electricity, waste and water factors alongside recognised UK sources. Every result keeps its source visible.

Try a calculation
02

See the next best action

Track by scope and month so your team can focus on the changes with the greatest impact.

03

Report once. Reuse everywhere.

Turn the same underlying data into Eco-Active returns, Carbon Neutral Roadmap alignment, and clear figures for stakeholder updates.

From bill to boardroom

Three steps. One clear picture.

Plain-English carbon reporting. No consultant vocabulary needed.

1

Add what you already know

Enter monthly figures or import a spreadsheet. Start with electricity and fuel; add more when you’re ready.

2

We handle the calculation

The platform applies the relevant factor, shows its source, and organises each entry by emissions scope.

3

Understand, share and report

Follow your trend, brief decision-makers and export the records needed for annual reporting.

A quick sense-check

See a Jersey-specific estimate in seconds.

Choose an activity and enter the figure from a recent bill. This preview uses factors already present in the 321ZERO platform.

i
Jersey electricity factor
0.0589 kgCO₂e per kWh
kWh
Estimated emissions1.06 tCO₂e

1,060 kilograms CO₂e.

Illustrative estimate only. Confirm current factors and reporting requirements before formal submission.

Made for island business

Relevant to your
sector from day one.

Different organisations have different hotspots. Start with the activities that matter to yours.

Hospitality & tourism

Understand the cost of every occupied room.

Bring electricity, heating fuel, laundry, food waste and guest travel into one view—then show visitors the progress you’re making.

  • Track seasonal peaks
  • Track seasonal changes across the year
  • Create public progress updates

Illustrative example · sample data

Emissions per guest night4.8 kgCO₂e
JanJun 18% lower
Measure. Report. Get support.

Start free. Add reporting tools when you need them.

Free starts you recording. Insights helps you prepare your own reporting. Business Assisted helps you prepare it with us. White Glove manages an agreed reporting process for you. Your figures stay live all year — so the 31 March deadline is a preparation task, not a scramble.

Free

£0/ month

Start recording.

Start free

Included today

  • One organisation, one site and one user
  • Manual entry of electricity, fuel, travel and other activities
  • Scope 1, 2 & 3 calculator with Jersey factors
  • Basic dashboard and emissions history
  • Raw-data download of your own records
  • Self-help guidance

Business Assisted

£275/ month

Prepare it with our help.

Ask about Business Assisted

Included today

  • Everything in Insights
  • Up to 5 users in total, including the owner
  • Each support period (each successive three months from activation) includes:
  • One 45-minute scheduled session
  • Up to 45 minutes of asynchronous reporting assistance
  • Help checking data completeness and preparing your reporting

Planned features

  • Multi-site management
  • JFSC sustainability risk templates
  • Carbon Reduction Plan templates

Plan upgrades are arranged through a short conversation. Team access and public sharing require an active plan. Business Assisted support is scoped within the quarterly allowance described above. Features listed as planned are clearly marked and not included today. 321ZERO provides carbon data capture and reporting — it does not provide independent verification, assurance or government approval of your figures.

White Glove — custom quote

A managed carbon-data and reporting service.

When you want us to run an agreed reporting process end to end. We scope the engagement around your organisation and you approve what is and isn’t included.

Request a scoped proposal
01

What an engagement can include

  • Reporting-boundary and evidence-field mapping
  • Collection and organisation of agreed environmental records
  • Relevant information extracted from invoices, supplier documents and O&M evidence
  • Missing-data follow-up and source traceability
02

Reporting built around you

  • Agreed periodic reviews, reports and exports
  • Environmental progress summaries
  • Evidence-backed website or social-media copy for your approval
  • Forecasts clearly separated from measured results
Each proposal is priced on:
Organisations & sitesProjectsData volumeComplexityReporting frequencyHuman effort

Construction example: relevant evidence — deliveries, plant fuel, waste transfers — is captured as the project runs, reported at agreed milestones, and exported at handover. Measured results are always shown separately from any early-stage forecast.

Optional: assisted onboarding — £495 one-off

Up to two delivery hours against an agreed scope to set up your reporting. Never charged automatically; additional historical cleanup is quoted separately.

Optional: annual reporting assistance — £495 one-off

Up to three delivery hours, based on one clean dataset supplied by the customer, including one draft review and one revision. Required software access is additional. Data cleaning, reconstruction and additional complexity are quoted separately.

Questions, answered

Carbon reporting
without the fog.

Still unsure where to begin? Read our Eco-Active guide, start free, or use our contact form.

When is the Eco-Active return due?+

31 March each year, covering the calendar year before it. Eco-Active returns can include environmental actions completed, achievements in the previous year, priority actions for the year ahead, current organisation and contact details and — for Leaders — audit evidence. 321ZERO supports the carbon and closely related environmental evidence for your return; it does not complete every part automatically or guarantee acceptance. Because your figures stay organised all year, the return is a preparation task rather than a last-minute scramble.

What are Scope 1, 2 and 3?+

Scope 1 is fuel you burn yourself (heating oil, company vehicles). Scope 2 is electricity you buy — in Jersey that uses the local grid factor of 0.0589 kgCO₂e/kWh. Scope 3 is everything else in your value chain: travel, commuting, waste, water and procurement. You enter bills; we put each line into the right scope.

What is Eco-Active membership vs leadership?+

Eco-Active Member is free: complete the gov.je form and set environmental actions. Eco-Active Leader needs a third-party standard such as ISO 14001, B-Corp, 5* environmental audit, or equivalent, plus audit certificates. Both levels submit an annual return by 31 March. We produce the emissions data for that return — we do not issue the accreditation itself.

Can I show my carbon numbers on our website or social media?+

Yes. With active Insights or Business access, the company owner can review and publish an annual carbon snapshot and embed it on a website. Private record changes are included only when the owner publishes an update.

What information do I need to start?+

Your electricity bill and any fuel receipts are enough for a useful first picture. Waste, water, travel and purchasing data can be added later.

Is this only for large organisations?+

No. Free lets one person start recording a business’s Scope 1, 2 and 3 emissions, view its history and download its records. Insights adds the tools to prepare your own reporting. Business Assisted adds a larger team and a quarterly support allowance to prepare reporting with our help. White Glove manages an agreed reporting process for you.

Can I export my data?+

Yes. Downloading your own records as CSV is included in Free. The formatted Eco-Active return is an Insights reporting tool, currently available on Free at no charge. We will give reasonable notice before that changes.

How is White Glove priced?+

After a scoping conversation, we prepare a custom proposal based on organisations, sites and projects, data volume, complexity, reporting frequency and the human effort involved — not employee count alone. Every inclusion is listed in the proposal before you commit.

What support is included with Business Assisted?+

Each Business Assisted support period is each successive three-month period beginning on the service activation date. Each period includes one 45-minute scheduled session and up to 45 minutes of asynchronous reporting assistance — checking data completeness and preparing your reporting. It is time to prepare your reporting with our help, not a managed service. Unused allowance does not roll over. Normal support for software faults is not deducted from this allowance. Additional work is agreed before it begins, so there are no surprise charges. You stay responsible for supplying information, approving figures and submitting returns.

What is not included in the paid tiers?+

Insights and Business Assisted do not include routine data entry, repairing your spreadsheets, bespoke calculations, consultancy, custom reporting or integrations, site visits, or routine O&M evidence extraction. 321ZERO does not provide independent verification, assurance or government approval of your figures — and White Glove does not automatically include those either. Independent assurance or specialist advice may require a separately appointed qualified professional. What we can do is organise your carbon and environmental evidence and prepare reporting material for your approval. Anything beyond the plans is scoped and priced before it starts. Product defects are always handled as normal support.

Does 321ZERO verify my footprint?+

321ZERO is a calculation and reporting tool, not an audit or verification service. Engage a qualified environmental professional when independent assurance is required. Eco-Active Leader status still needs your own ISO/audit certification from an approved body.

Your first footprint is closer than you think

Ready to make carbon
make sense?

Start measuring free

No card required · Export whenever you like · Figures ready well before 31 March