---
title: "This Fully Electric Tugboat Will Have Absolutely Massive Battery Packs"
description: "The 82-foot zero emissions escort tug called \"eWolf\" could be a game changer in reducing carbon emissions in the maritime industry."
date: "2021-07-15"
modified: "2021-07-15"
authors:
  - name: "Victor Tangermann"
    job_title: "Senior Editor"
    link: "https://futurism.com/authors/victor"
url: "https://futurism.com/the-byte/fully-electric-tugboat-massive-battery-packs"
categories:
  - "Science & Energy"
tags:
  - "cargo ships"
  - "electric boat"
  - "the digest"
---

# This Fully Electric Tugboat Will Have Absolutely Massive Battery Packs

![The 82-foot zero emissions escort tug called "eWolf" could be a game changer in reducing carbon emissions in the maritime industry.](<https://futurism.com/wp-content/uploads/2021/07/fully-electric-tugboat-massive-battery-packs.jpg>)
*\<em\>Image: Crowley Maritime Corp.\</em\>*

## Electric Tug

Shipbuilder Crowley Maritime Corp [announced this week](<https://www.crowley.com/news-and-media/press-releases/ewolf-electric-tug/>) that it's building and operating the first ever all-electric tugboat in the United States.

The 82-foot, zero emissions escort tug, called "eWolf," will eventually start serving the port of San Diego some time in mid-2023.

Switching tugboats to electric propulsion could have major implications for reducing the planet's carbon footprint. According to the company, the eTug will produce 178 tons of nitrogen oxide, 2.5 tons of diesel particulate matter, and 3,100 metric tons of carbon dioxide less than a conventional tugboat over the first ten years of its life.

https://youtu.be/9HgFFb1eQjI

## Game Changer

In the company's announcement, Chairman Michael Zucchet of the Port of San Diego Board of Port Commissioners called the "first-of-its-kind" tugboat a "game changer."

"It checks all the boxes by providing environmental, economic, and operational benefits for our communities and maritime industry," he said.

Its propulsion system is made up of two massive 2100 kilowatt electric motors, capable of producing over 70 tons of bollard pull. That's a significant leap over the [50 to 60 tons](<https://www.marineinsight.com/naval-architecture/bollard-pull-everything-you-wanted-to-know/#:~:text=General%20values%20of%20bollard%20pull,between%20500%20to%20600%20kilonewtons.>) of average pull of conventional tugboats.

It will also feature a gigantic 6 megawatt hour battery system — roughly the equivalent capacity of 60 Tesla Model S cars — that "can be maintained and upgraded for future battery technology improvements without any significant modifications to the vessel," according to a [spec sheet](<https://www.crowley.com/wp-content/uploads/sites/7/2021/07/THS-08240-eWolf.pdf>).

Maritime transport is a significant contributor to global pollution, producing around 940 million tons of carbon dioxide emissions annually, or around 2.5 percent of global greenhouse gas emissions, [according to the latest data](<https://ec.europa.eu/clima/policies/transport/shipping_en>).

Switching container ships, as well as other vessels needed to help them navigate increasingly busy ports, to electric propulsion only makes sense to make a dent in those emissions.

**READ MORE:** [First fully electric tugboat in US to set sail with more than 6 MWh of batteries](<https://electrek.co/2021/07/13/first-fully-electric-tugboat-in-us-to-set-sail-with-more-than-6-mwh-of-batteries/>) \[*Electrek*\]

**More on tugboats:** *[Another Ship Just Got Stuck in the Suez Canal](<https://futurism.com/the-byte/another-ship-stuck-suez-canal>)*

## Author
I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida.

### Author social links  
[Bluesky](<https://bsky.app/profile/vtanger.bsky.social>)