Why it matters
Pre-filled where we have data — adjust any value to match your local reality.
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LCOE+S model: all costs (solar CAPEX, BESS, shipping, OPEX, refurbishment, decommissioning) levelised over 25-year NPV-discounted energy production. PPA = 1.8 × LCOE+S. Contact Reverlast for a site-specific financial model.
Saves $— per year vs. current diesel costs
Diesel prices as of Q1 2025 · IEC 61724-1 engineering parameters
The floating solar array is sized to meet your target solar share from available irradiance. Battery storage is included at the Reverlast standard of 3 MWh per MWp (3-hour reserve), fully included in the LCOE+S and PPA rate.
The total amount the island pays Reverlast over the full contract term — in exchange for all solar electricity produced. Rate = 1.8 × LCOE+S, where LCOE+S levelises all costs (solar, BESS, shipping, OPEX, refurbishment, decommissioning) over NPV-discounted energy. No upfront capital required.
The island currently generates electricity by burning diesel at $—/kWh. Under the PPA, it pays only the solar rate — the difference is pure savings, growing each year as diesel prices rise.
Solar handles base load and reduces diesel consumption dramatically. During prolonged cloudy weather, diesel generators can still be used to produce power — energy security is never compromised.
Calculated using the IPCC Tier 1 factor of 2.68 kg CO₂ per litre of diesel combusted — equivalent to taking — passenger cars off the road every single year.
The island's cumulative savings at —%/yr diesel escalation. As diesel prices rise each year, the gap between PPA cost and diesel cost widens — so savings accelerate over time.
Every litre eliminated is one fewer fuel shipment — reducing the island's exposure to global oil price volatility. At $—/L today, this diesel was costing $—/year to procure.
The 80% efficiency factor is an industry standard — it accounts for the unavoidable real-world losses from heat, wiring resistance, and inverter conversion. Without it, you'd consistently under-build. Irradiance (peak sun hours) is pre-filled based on your island's latitude.
Island diesel generators produce roughly 3.2 kWh for every litre burned — that's their typical conversion efficiency under real operating conditions. Each litre this system replaces is fuel that never needs to be ordered, shipped, stored, or handled.
The PPA rate is derived from the full project cost — equipment, shipping, O&M, and financing — spread across every kilowatt-hour the panels will ever generate. The result is a fixed price per kWh that is substantially lower than what the island currently pays for diesel-generated electricity, so savings begin from day one of the contract.
2.68 kg/L is the IPCC's published Tier 1 emission factor for diesel combustion — the same number national governments use when reporting to the UN. It's a conservative, universally accepted figure.
Battery keeps the grid stable at night and during cloudy stretches. Reverlast uses a standard 3-hour reserve — enough for overnight coverage without over-building storage. The sizing is cross-checked against peak demand to ensure the island is never left short.
Solar covers the floating platform, modules, inverters, and grid tie-in at $1,200/kWp. Battery storage (BESS) adds $120,000 per MWh, locked at Reverlast's standard 3 MWh per MWp. These figures reflect current procurement pricing and include all associated costs over the full project life.
We measure distance to the nearest of Rotterdam, Shanghai, or Mumbai — the three main solar equipment export hubs. Islands close to a port pay around $200k per MWp in freight; the most remote locations approach $1M per MWp. Rounded to the nearest $100k.
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Reverlast floating solar · IEC 61724-1 certified methodology