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It might sound like something from a sci-fi movie about space logistics, but what exactly is biodiesel fuel? The truth is more down-to-earth than you might think — it's closely tied to how we live, work, and even eat on our planet.
Biodiesel is a renewable and biodegradable alternative to traditional diesel. It’s made from everyday biological materials such as animal fats, vegetable oils, and recycled restaurant grease. Unlike fossil fuels, biodiesel burns cleaner, helping to reduce the greenhouse effect that’s driving global warming.
With so much talk about alternative energy sources these days, it can be hard to know where to start. So, what are the advantages and disadvantages of biodiesel? Is it being used widely today? And how safe and sustainable is it for the environment?
**How is biodiesel made?**
The process starts with waste cooking oil or animal fat. Through a chemical reaction known as **transesterification**, this waste is transformed into biodiesel. This involves mixing the oil with an alcohol (like methanol or ethanol) in the presence of a catalyst, usually sodium hydroxide or potassium hydroxide. The result is biodiesel and glycerin — a byproduct that can also have useful applications.
Once produced, biodiesel is often blended with regular diesel. Blends like B2 (2% biodiesel) or B10 (10% biodiesel) are common. According to Natural Resources Canada, many engine manufacturers now support blends up to B5, and some warranties cover up to 20% biodiesel. As more testing is done, these percentages are likely to increase.
**Where is biodiesel used?**
In the U.S., biodiesel is the third most popular biofuel. It powers everything from cars and trucks to buses and farm equipment. It’s also used in sustainable aviation fuel (SAF), which blends biodiesel with traditional jet fuel. As demand grows, we can expect to see more innovative uses of biodiesel in the future.
**What are the benefits of biodiesel?**
One major advantage is its ability to cut greenhouse gas emissions. Renewable Industries Canada reports that biodiesel can reduce GHG emissions by as much as 122% compared to petroleum diesel. That’s because it’s made from organic waste, which would otherwise end up in landfills, polluting soil and water.
Additionally, the raw materials for biodiesel — like vegetable oils and animal fats — are renewable and easier to harvest than fossil fuels. While gasoline may be cheaper now, it’s not sustainable and comes with environmental risks. Biodiesel offers a more eco-friendly and long-term solution.
**What are the challenges?**
Despite its benefits, biodiesel isn’t without drawbacks. In cold climates, it can gel or crystallize, potentially clogging filters and fuel lines. However, there are ways to winterize biodiesel, and newer formulations are reducing this issue.
Another concern is that using biodiesel above certain levels could void some vehicle warranties, though most modern engines can handle blends up to B5 without problems. Also, biodiesel has a slightly lower energy content, leading to a 5% increase in fuel consumption for the same output.
**Moving toward greener transport**
Switching to biodiesel is a powerful way to reduce your business’s carbon footprint. From cars and buses to planes, biodiesel helps cut emissions while repurposing waste products that would otherwise harm the environment.
And it’s not just biodiesel — electric vehicles (EVs) are another key player in the green transport movement. Many EV drivers use public charging stations regularly, showing a growing shift toward sustainability.
If your business is looking to embrace greener transportation options, ChargeLab can help. Our software powers North America’s top EV charger manufacturers and network operators. Contact us today to learn how we can support your transition to a more sustainable future.