> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appliedaifoundation.org/llms.txt
> Use this file to discover all available pages before exploring further.

# FuelEU dashboard

> GHG intensity tracking, fuel mix analysis, and per-vessel compliance ranking.

The FuelEU dashboard is where you'll find out, on any given day, whether your fleet is on track to comply — and what a non-compliance penalty would cost.

<Frame caption="FuelEU dashboard — compliance banner, summary cards, and daily intensity chart.">
  <img src="https://mintcdn.com/metaweaveconsultant/ZChQsW2FZuO2wFx2/images/fuel-eu/hero.png?fit=max&auto=format&n=ZChQsW2FZuO2wFx2&q=85&s=e7d437fe0c5ac1c67aae0529e9a7103c" alt="FuelEU dashboard hero" width="2880" height="5864" data-path="images/fuel-eu/hero.png" />
</Frame>

## What's on the page

### Compliance banner

A green or red banner answers the headline question: are you compliant for the selected year? It shows fleet GHG intensity, the year's target, and the gap.

### Summary cards

* **Fleet GHG Intensity** (gCO₂eq/MJ)
* **Year target** + reduction percentage
* **Compliance Gap** — actual minus target
* **Vessels Reporting** — count

Plus a second row of energy/compliance metrics:

* **Total Energy** (MJ, formatted in TJ/GJ)
* **Total Emissions** (tonnes CO₂eq)
* **Compliance Balance** — surplus or deficit, in tonnes CO₂eq
* **Potential Penalty** (€) — calculated only if non-compliant

### Daily intensity chart

<Frame caption="Daily fleet GHG intensity vs. the year's target line.">
  <img src="https://mintcdn.com/metaweaveconsultant/ZChQsW2FZuO2wFx2/images/fuel-eu/daily-chart.png?fit=max&auto=format&n=ZChQsW2FZuO2wFx2&q=85&s=2e46febf724e7fe9737fcea4b874d68f" alt="FuelEU daily intensity chart" width="2880" height="5864" data-path="images/fuel-eu/daily-chart.png" />
</Frame>

A timeline of fleet GHG intensity through the year, with the target as a horizontal threshold line. Background colour shifts indicate which periods were compliant vs. non-compliant. Hover for the exact intensity on any day.

### Fuel breakdown

<Frame caption="Fuel mix table — consumption, energy, WtT, TtW, WtW, share %.">
  <img src="https://mintcdn.com/metaweaveconsultant/ZChQsW2FZuO2wFx2/images/fuel-eu/fuel-breakdown.png?fit=max&auto=format&n=ZChQsW2FZuO2wFx2&q=85&s=5ccf1a563662473a6e426d9ea3973db0" alt="Fuel breakdown table" width="2880" height="5864" data-path="images/fuel-eu/fuel-breakdown.png" />
</Frame>

One row per fuel type in use:

| Column          | Meaning                            |
| --------------- | ---------------------------------- |
| Fuel Type       | HFO, MGO, LNG, Bio-Blend, etc.     |
| Consumption (T) | Tonnes burned                      |
| Energy (MJ)     | Tonnes × LCV                       |
| WtT             | Well-to-Tank intensity (gCO₂eq/MJ) |
| TtW             | Tank-to-Wake intensity (gCO₂eq/MJ) |
| WtW             | Total = WtT + TtW                  |
| Share %         | % of total fleet energy            |

### Per-vessel ranking

<Frame caption="Vessels ranked by GHG intensity, best to worst.">
  <img src="https://mintcdn.com/metaweaveconsultant/ZChQsW2FZuO2wFx2/images/fuel-eu/vessel-ranking.png?fit=max&auto=format&n=ZChQsW2FZuO2wFx2&q=85&s=9a4eae46f83c11edf2bfc68899f91221" alt="Per-vessel ranking" width="2880" height="5864" data-path="images/fuel-eu/vessel-ranking.png" />
</Frame>

Which ships are pulling the fleet above target? This table ranks every vessel from lowest intensity to highest, with compliance badges for instant identification.

### Reduction pathway reference

<Frame caption="Built-in reference for FuelEU targets 2025–2050.">
  <img src="https://mintcdn.com/metaweaveconsultant/ZChQsW2FZuO2wFx2/images/fuel-eu/reduction-pathway.png?fit=max&auto=format&n=ZChQsW2FZuO2wFx2&q=85&s=f2ac063f06c5630504bc61af3d69091c" alt="Reduction pathway" width="2880" height="5864" data-path="images/fuel-eu/reduction-pathway.png" />
</Frame>

A static reference table showing the entire FuelEU trajectory through 2050 — useful for fleet-transition planning.

### Annex II factors reference

A second static reference table lists default WtT, TtW, and WtW values for every supported fuel — what the platform uses when no measured value is provided.

## What you can do here

* Track GHG intensity day-by-day across the year
* Identify which vessels and which fuels are dragging compliance down
* Model penalty exposure at current consumption levels
* Plan fleet transitions against the 2030 / 2035 / 2040 targets
* Generate the [FuelEU Maritime Report](/product/reports-hub) for verifier submission

## Source

Logic in `src/lib/utils/fuelEUCalculator.ts`. Hydrated from `FleetService.getFleetSummary()`.