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Borehole Project Calculator

Estimate safe-water carbon credit volume from household reach, boiling behaviour, borehole uptime and avoided non-renewable fuel use before you commit to deeper project development.

Open in Pro → Read the guide
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Borehole safe-water modelling is available in Pro.

The public page explains the assumptions. Open Pro to run live scenarios, save evidence-led assumptions, export reports and share client-ready results.

  • Model households served, water use, baseline boiling and uptime.
  • Estimate avoided fuel, annual credits and modelled revenue.
  • Keep the result tied to your workspace and proposal workflow.
Workspace viewPro
Screenshot of the Borehole Project Calculator in The Carbon Workbench Pro workspace
Create an account to edit inputs, save runs and export results.

The Borehole Project Calculator is built for early-stage safe-water modelling. It helps teams test whether a project is likely to generate commercially meaningful annual credits, whether the assumptions look credible enough for diligence, and which variables need stronger field evidence before anything is shared externally.

This is a first-pass model rather than a registry submission engine. It is most useful when commercial, sales and technical teams need a fast answer on whether a borehole opportunity deserves further work.

Pro feature. The Borehole Project Calculator is included on the Pro plan because it is designed for editable project modelling, branded exports, share links and embed workflows rather than casual public use.

What the calculator tests

Reach
Household and water access scale
Estimate whether reach assumptions are large enough to produce meaningful credit volume before validation and monitoring costs are considered.
Baseline
Boiling behaviour before intervention
Model the share of household water that would otherwise be boiled, which is often one of the most commercially sensitive assumptions.
Performance
Uptime and delivery reliability
Bring equipment availability into the estimate so the modelled result better reflects real delivery conditions.
Conservatism
Uncertainty and deduction handling
Apply a practical deduction for leakage or uncertainty so modelled numbers do not overstate likely external-facing outcomes.

Main inputs

How the calculation logic works

The model estimates useful water delivered, applies the share that would otherwise have been boiled, translates that displaced boiling activity into wood savings, then applies the non-renewable biomass share and emissions factor. Uptime and deduction settings bring the gross result back toward a more conservative operational estimate.

StepPurpose
Useful water deliveredConverts households, daily water access, boiling share and uptime into the annual water volume used by the model.
Wood displacedUses wood-per-litre assumptions to estimate the baseline fuel displaced by reliable safe-water access.
Non-renewable shareApplies the share of biomass that counts toward avoided fossil-equivalent emissions.
Gross creditsTranslates displaced non-renewable wood into annual tCO₂e using the emissions factor in the tool.
Net creditsApplies deduction settings so the result is directionally conservative rather than promotional.

When to use it

Use the Borehole Project Calculator when a project is too early for detailed diligence but important enough to warrant a first-pass commercial model. That includes inbound sales conversations, donor or partner opportunity review, early funder conversations and internal triage before technical teams are asked to spend time on methodology or monitoring design.

What to do after the first-pass estimate

If the modelled number looks credible, the next step is not usually to publish it. The stronger path is to test methodology fit, verification burden and buyer readiness. That is where the surrounding Pro workflow matters.

Next step
Methodology Selector
Check whether the safe-water route looks suitable before you rely on a modelled carbon number.
Next step
Verification Cost Estimator
Test whether the likely credit volume can justify validation, verification and monitoring overhead.
Guide
Borehole carbon credit guide
Read the full explanation of usage evidence, baseline risk and the assumptions that matter most.
Related tool
Water Project Calculator
Use the broader water tool when you need a more general safe-water model beyond borehole delivery.

Model the opportunity before you commit more time

Open the Borehole Project Calculator, then test stronger projects against methodology, verification and commercial evidence requirements.

Open in Pro →