Kauai switches from dirty diesel to solar with Tesla battery storage

The Hawaiian island of Kauai plans to give us diesel generators and complete the switch to solar to power the islands electrical needs.
Tesla battery packs are uses in more than electric cars. On Kauai Tesla has installed 272 power packs that store energy from 55,000 solar panels
tesla-powerpack-2
This project will save Kauai 1.6 million gallons of diesel every year.
Solar panels blanket a large clearing on the Grove Farm land the Tesla facility occupies, lined in undulating waves on the softly rolling hills. It feels like you’re standing in the center of a crown of mountains, overlooking an oddly geometric and unnaturally blue man-made lake. Rows of Tesla Powerpack 2 commercial batteries stand as silent white monuments next to the angular artificial lake, rising up in stark contrast from the roan red clay earth.
The whole facility generates 13 megawatts of energy, which adds up to around 19,438 MWh of electricity per year, and can store up to 52 megawatt hours of power. It does this with a cost to Kauai of 13.9 cents per kilowatt-hour, locked at that price for the duration of a 20-year contract. That’s under half the price the island currently pays for power generated from burning diesel fuel, which is its prevailing source of energy. The new solar storage facility can build up enough energy  to power 4,500 Kauai homes through the night, which is a significant number of households given the population of the island was at 67,000 as of the last U.S. census.
The Kauai facility is meant to show what Tesla can offer for higher-demand commercial projects, and it’s a stake in the ground that’s designed to pique the interest of energy providers the world over – not just those perfectly situated to make the most of available sunlight, according to Straubel.
“It’s immediately a cost benefit,” JB Straubel, Tesla CTO said. “And that’s true in many places around the world, it’s not just true on islands like this in Hawaii. It’s not intuitive; most people, they think this is more expensive still today, but the cost of solar and the cost of storage has come down so quickly that these projects now are cost-effective in many locations.”
tesla-kauai power pack
Check out the video to get the big picture.

Share:

More Posts

old car

Bangers Rule the roads

Average age of a car hits 10 years Reports today suggest that the average age of cars on the roads is increasing, surpassing 10 years. This isn’t surprising, given the decline in new car sales and manufacturing. In the UK, new car sales have generally declined since 2019, with a significant drop in 2020 and

Model s and X Gone from Europe

Tesla seem to have removed Model S and X from UK and Europe. The past decade has shown that Tesla operates differently from the norm. It’s a mix of genuine innovation and reality distortion. Discussions about its helium-powered share price sparked endless debates about the market’s reliability. Elon Musk’s 50 billion dollar pay package was

Tesla UK July 2025 Prices

Tesla Model 3 pricing remain unchanged during July 2025.  Tesla UK is offering some great 0% finance offers of PCP and HP with monthly prices starting at just £249. Also Stealth Grey and Solid Black are the new While at no additional cost. White, Black and Blue are now £1300 while Red and Quicksilver are

kingE

July 2025 Solar Production

533 kWh Produced in July 2025 – Plenty of sun. The UK continues to warm up with plenty of sunshine. July 2025 brings more solar production than the last two years with over 533 kWh of power generated. This compares to 430 kWh in 2023 and 2024, a significant jump as shown below. We exported

Send Us A Message