Island power

The sun is running the whole island — and filling the batteries.

There is no power line to the mainland. Everything the island runs on is made here — by the solar array, the battery bank it charges, and the generators that cover the rest.

Reading taken 2:00 pm · Wednesday 9 September

Where the island’s power is coming from

  • The sun883 kW

    peak today 2,781 kW at 11:55 am

  • Generators0 kW

    switched off

  • The island780 kW

    marina, clubhouse, homes

  • Batteries103 kW

    filling up · 91% full

Each bar is how much power is moving, and the arrow says which way. When the batteries are full or the sun sets, they stop filling up and start feeding the island instead.

Battery bank

91%

Charging. The bank stores daytime sunshine so the island can run on it after dark instead of burning diesel.

Powered by the sun right now

100%

0%100% of the island

Everything the island is using at this moment is coming straight off the array, and the surplus is going into the batteries.

Made by the sun today

9,128 kWh

That is energy, not power — the total collected since midnight. The array has made 422k kWh in the last thirty days.

Today so far

Every reading from the island since midnight. Where the gold rises above the blue, the sun is making more than the island can use and the extra is going into the batteries.

  • Sun today
  • What the island is using
  • Sun yesterday
01,5003,000kWnow12am6amnoon6pm12am

What the numbers mean

kW — kilowatts

How much power something is making or using at this instant. One kilowatt is roughly one hair dryer running. The whole island sits somewhere between 450 and 1,000 of them.

kWh— kilowatt‑hours

Power added up over time — the same word your electricity bill uses at home. One kilowatt running for one hour is one kilowatt‑hour.

Why the generators still run

They cover the gap before sunrise, after a long grey day, and whenever the batteries run low. Every kilowatt the sun and the batteries supply is a kilowatt of diesel not burned.

Readings come from the island’s own power system and refresh every few minutes. The full engineering view lives at solar.chubcay.com.