LuaZeroFood Systems & Sustainable Agriculture · Net Zero Challenge 2026
We are building an evidence layer for rice cooperatives: farmer water logs, satellite cross-checks and traceable emissions calculations in one review workflow. Explore the working calculation and synthetic evidence prototype below.
Explore how water management and accounting assumptions affect a rice season. This prototype estimates a scenario; it does not issue carbon credits.
Estimated reduction per hectare, per season
tCO₂e · after scenario deductions
Continuous flooding → selected project regime
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Gross value excludes verification, registry, operating and transaction costs, and any benefit-sharing arrangements. It is neither a buyer offer nor a farmer payout.
Illustrative scenario, not a verified monitoring result.
CH₄ reduction = EF × SF(pre-season) × SF(organic) × [1 − SF(project water)] × hectares × days × 28 / 1,000.
We subtract estimated N₂O and user-entered other emissions, then apply a 15% uncertainty deduction to a positive balance. The selected SOC discount applies afterward. N₂O uses 0.00314 kg N₂O/kg project N when N does not increase, or 0.00786 when it does; the prototype retains the entire estimate rather than automatically excluding small amounts. GWP values are AR5 scenario assumptions: CH₄ 28 and N₂O 265. Final project accounting must confirm the applicable vintage and rules.
Baseline and project share the same pre-season and organic-amendment assumptions. This calculator does not model changed residues, measure methane, establish additionality, validate a baseline or prove programme eligibility. Negative balances remain visible and produce zero gross value. Annual multiplication assumes identical seasons; a real report must calculate each season and stratum separately.
Reference: Gold Standard rice methodology and 2025 SOC rule update, relevant to monitoring periods starting in 2026. No endorsement or certification is claimed.
Test the review logic on a 12-week sample. Missing observations, low confidence and conflicting logs stay visible. Editing a farmer log preserves the original synthetic observation and records the change in the downloadable report.
Synthetic sample. Agreement between two sample records is not proof of a drainage event.
| Week | Farmer log | Observation | Confidence | Review |
|---|
| Acquisition strategy | Repeat | Per 95-day season | Catch an 8–9 d dry-down | Catch a 3 d drainage |
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What the satellite layer still needs to prove
No Sentinel-1 data is retrieved by this demo. A real pipeline must account for acquisition gaps, crop stage, canopy effects, mixed pixels and local calibration. Satellite observations can guide review; they cannot independently measure methane or confirm every short drainage event between passes. An unresolved conflict triggers investigation, not an automatic reduction in credit count.
Vietnam's programme creates a clear setting for testing low-emission rice evidence workflows. The World Bank reports a TCAF commitment of up to USD 40 million for results-based carbon purchases.
World Bank programme context. This is national programme finance, not funding awarded to LuaZero. Access depends on the programme's own eligibility and payment rules.
Our proposed buyers are cooperatives, exporters and carbon project developers who need to assemble field evidence. Farmers contribute data and should share in benefits; the intended model does not charge individual farmers.
We will test willingness to pay USD 3–6 per hectare per season, alongside the actual cost of field support. No paying customers, funding or signed pilot partners are claimed.
Proposed scope: 200–300 unique hectares, two crop seasons, one or two Mekong Delta cooperatives. Nine months from partner and crop-calendar readiness. Proposed budget: USD 55,000.
Secure a cooperative and research collaborator, agree data consent and accounting approach, map plots and install 20 water-level loggers.
Collect paired water records, calibrate satellite features and commission reference measurements under a research-approved sampling plan.
Freeze the model and evaluate season-two observations independently. Track farmer effort, yield, missing data and field support cost.
Request a verifier pre-assessment, publish measured unit costs and decide whether the evidence supports expansion.
These are proposed targets, not achieved results. Partners, sampling design, verifier availability and quotations must be secured.
Review the assumptions, calculation walkthrough and proposed field validation protocol.
Two Information Systems and Technology undergraduates at Institut Teknologi Bandung, Indonesia. We are developing the software prototype and seeking Vietnamese agronomy, remote-sensing and field-operation collaborators.
Working today: scenario calculator, synthetic evidence review and report export.
Planned: Zalo integration, real Sentinel-1 processing and Vietnamese field validation.