CO2 potentially avoided per eligible connection
55–120 t CO2
80–160 MWh × ≈0.7 t CO2/MWh displaced
Shore power, measured and verified
Every shore-power connection, verified and compliance-ready.
Vessels at berth can replace onboard diesel generation with renewable shore electricity. PowerTides measures each connection, verifies the renewable origin and reconciles every megawatt-hour — so the avoided CO2 you report is defensible.
The opportunity at berth
One connection. A measurable reduction.
PowerTides targets vessels with 4–15 MW of auxiliary generating plant running at 20–30% load at berth — deep-sea container ships, large ro-pax and tankers on typical 24–48 hour calls. At that duty, every connection displaces significant diesel volumes.
Renewable shore energy per connection
80–160 MWh
Consistent with 4–15 MW plant at 20–30% load over 24–48 h
Average electrical demand at berth
0.8–4.5 MW
4–15 MW auxiliary plant engaged at 20–30% load
Auxiliary-engine GHG avoided at berth, up to
95–98 %
With renewable electricity · ~50% net on an average EU grid
Method: avoided CO2 = metered shore MWh × displaced auxiliary-engine intensity − shore-electricity emissions. At 20–30% load, auxiliary engines burn ~220–240 g of marine gas oil per kWh (IMO factor 3.206 t CO2 per tonne of diesel/gas oil), so each renewable MWh displaces ≈0.70–0.77 t CO2. Figures are estimates until each connection's energy, renewable origin and utility records are verified and reconciled. Shore power displaces auxiliary engines, not onboard boilers.
Real-world anchors: Port of Barcelona publishes 6.14 t CO2 avoided per ferry stop (Grimaldi OPS) and ~2,500 t/yr at the BEST container pilot; Hamburg measured ~16 t per cruise call; Juneau averages 49 t per connection over 25 years.
Illustrative equivalences, not verified: based on 55–120 t CO2 per eligible connection. Car: ~4.6 t CO2/vehicle/year (US EPA average passenger car). Flight: ~135 kg CO2e/passenger for a one-way Madrid–Paris flight (ICAO Carbon Emissions Calculator, order-of-magnitude estimate). Forest: ~2.6 t CO2e/hectare/year carbon sequestration (commonly cited temperate-forest estimate). These comparisons are for intuition only and are not part of the reported CO2 figure.
Why now
From 2030, plugging in is the law. Proving it starts now.
- FuelEU Maritime — 2030Container and passenger ships over 5,000 GT must use shore power at berth in TEN-T ports. Penalties scale at €1.5 × power demand × non-compliant hours. Every verified kWh already improves a ship's GHG-intensity balance today.
- EU AFIR — end 2029TEN-T ports must be able to serve at least 90% of qualifying calls with shore-side electricity.
- EU ETS — since 2024100% of at-berth emissions in EEA ports carry allowance costs. Metered shore power reduces them, with evidence.
Ship operators, verifiers, ports and utilities all need the same thing: trusted per-connection energy records.
From connection to evidence
A clear path from energy delivered to impact reported.
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01
Connect
The vessel arrives, plugs into shore electricity and reduces onboard diesel generation.
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02
Measure
Connection duration and delivered energy are captured for the full port call.
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03
Verify
Renewable origin, operational records and calculation inputs are checked.
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04
Report
The reconciled CO2 result is preserved with its methodology and evidence.
Compliance-ready by design
The number matters. The evidence behind it matters more.
PowerTides creates a consistent record for each connection, helping ports, operators and reporting partners move from an operational estimate to a defensible emissions result.
- Traceable calculationsInputs, assumptions, factors and methods remain visible.
- Clear reporting statusEvery figure is identified as estimated, verified or reconciled.
- Consistent methodologyThe same rules apply across vessels, terminals and periods.
- Evidenced renewable originRenewable claims are backed by retained and retired energy-attribute certificates (GOs/RECs), disclosed per connection.
Utility reconciliation
Disparities can be resolved.
Connection readings and utility records may differ because of meter boundaries, time intervals, corrections or billing periods. PowerTides makes those differences visible and manageable.
- 01 Compare connection and utility records
- 02 Identify and quantify the disparity
- 03 Record evidence and adjustments
- 04 Resolve with a preserved audit trail
Proven in operation
Port of Barcelona — Phase 1
In a 2024–2025 proof of concept at the Port of Barcelona, this approach integrated shore-power connections into port-call planning, optimized vessel-to-connection allocation, and reconciled metered MWh against utility provider records — accurate, auditable energy accounting, built to scale.
- — Allocation logic across berths and pits
- — MWh accounting from real consumption
- — Reconciliation against utility records
Scale the impact
Infrastructure creates capacity. Verified connections create impact.
Today's operating base establishes a credible path toward a significantly larger shore-power program.
3active connection pits
~20vessels per month
1,100–2,400 t CO2derived estimate per month
10connection pits
60–80vessels per month
3,300–9,600 t CO2derived estimate per month
Pilot: measure first → Scale-up: allocation across berths → 2030: compliance-ready per-call evidence.
Scenario estimates use the stated 24–48-hour baseline and the 55–120 t CO2 per-connection envelope. Capacity is not realized impact; reportable totals depend on completed eligible connections and verified renewable electricity.
Make every connection count