Nantucket to be Powered by 48 MWh Tesla Powerpack System


Nantucket unique electricity demands present Tesla with yet another opportunity to demonstrate its novel battery storage capabilities. Tesla powerpack system is seen as a solution to the short power outages occasioned by the aging generators that are currently powering the Island.

Tesla is no stranger to the development of energy storage devices on Island. With their current imprints in Puerto Rico with the solar microgrid venture. Restoring the shuttered national grid in the aftermath of Hurricane Maria.

tesla powerpack system

Nantucket being an Island attracts tourist from all works of life. This has resulted in the steady increase of power demand on the island, to the extent that it’s projected that by 2030, a third submarine cable may be required.

Tesla Powerpack System, the best option.

It is faced with two options; to add a third undersea cable or purchase two new generators but on the contrary, it has decided to invest its money in a grid-scale battery installation. Tesla’s experience through its involvement with many other successful Tesla Powerpack projects in small islands has seen Nantucket entrust them with this project.

Nantucket, an island off of Massachusetts and home to more than 10,000 people has to replace their diesel generator backups as they are expiring. Tesla has been given the goahead for this project, the key role being to install more Tesla Powerpack battery backup systems.

tesla powerpack

Currently, two submarine cables transmit electricity from a mainland energy system in Cape Cod to power the island. In the event that one of these cables, for one reason or the other, there are two sixmegawatt dieselpowered generators for a power back up.

Taking Care of the Present and 2O years into the Future

The major issue with the present backup generator is their age. This is the reason why the National Grid, an energy transmission company that operates in New York, Rhode Island and the Northern States of Massachusetts, looked into different upgrade alternatives. They are hoping to create a battery energy storage system, known as BESS that will be fueled by the new diesel generator.

Tesla has been called upon to help come up with the project design. Tesla is to create the 48megawatt hour Powerpack facility. A capacity of six megawatts will be held by 200 Tesla Powerpack units. Backup electricity will be taken from the battery facility instead of turning on the generators. The new generators should keep everything powered up and the old diesel generator backups phased up.


In a press release by the COO and President of National Grid, Rudy Wynter, he said: “National Grid explored several options to address these infrastructure needs and the ever-increasing on-island demand for electricity, and came up with a unique solution: the [battery energy storage system] and a new diesel generator that together can supply the island in the event of a cable failure. National Grid expects that with the BESS, the need for a third cable can be delayed for 15 to 20 years beyond the current 12-year forecast. The BESS will be six megawatts with an eight-hour duration, which is also described as a 48 megawatt-hour system, and is being provided by Tesla.”

A Promising Experience

National Grid has taken part in several renewable energy projects, such as solar generation, microgrids and geothermal heating. Should the new BESS installed in Nantucket, it will hold up the need for a third cable for almost 20 years. Though the island uses diesel generators, BESS is a much better option as it is cleaner and more reliable.

Town of Nantucket Energy Coordinator Lauren Sinatra said: “The Town of Nantucket commends National Grid’s decision to deploy an innovative energy storage solution on the island. We are confident that the proposed project, combined with targeted energy-saving programs and other planned electric infrastructure upgrades, will play a transformational role in meeting Nantucket’s near- and long-term energy needs.”

Tesla on the other hand, has vast experience when it these matters. Their most recent job was helping Puerto Rico get back into shape and all powered up after the devastating hurricane by installing batteries with solar panels. In May, Tesla had a similar project in Hawaii though it was quite bigger with 52megawatt hours and 272 Tesla Powerpack units which included a 13megawatt solar farm.

Tesla is making a name for itself as the go-to company when it comes to supplying more energy for less money or clean energy solutions. We expect to see their Tesla Powerpacks powering, even more, parts of the world.