CNG and LNG are both great options for someone who is looking for a cleaner and more sustainable energy source. Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) offer versatile solutions for residential and commercial applications and vehicles, however both have their pros and cons. We are going to introduce both options in this article, helping you make the best decision aligning with your energy needs and goals.
CNG storage is compact and versatile
CNG cylinders are a great option for someone who values compact storage and doesn’t mind a smaller range. CNG vehicles produce fewer emissions compared to traditional fossil fuels, therefore it is an effective way to reduce carbon footprint without giving up driving your own vehicle. Based on that factor, LNG is a poorer choice compared to CNG, as it emits more emissions.
The biggest advantage of CNG cylinder storage is the size, as it is relatively small and easy to store, making them suitable for many different applications. However this advantage is also a shortage compared to LNG. CNG is ideal for short-distance travel and small-scale energy needs, having lower energy density compared to LNG and using more storage volume for the same energy output.
LNG storage is meant for long-distance
Compared to CNG, vehicles driving on LNG have a longer range, making it a great option for long-distance transportation such as heavy-duty trucks and marine vessels. Even though LNG weighs more than CNG, it occupies 1/600 of the CNG volume, making it more cost-effective and smaller to store.
Due to the liquid form of LNG, it also offers reduced storage space, but the storage is more complex than CNG. LNG must be stored in specialized cryogenic storage tanks to maintain its low temperature and a liquid form. A disadvantage that comes with LNG is its relatively limited infrastructure and it also requires special handling when refueling, making it a more complicated choice.
Main difference between CNG and LNG storage
The biggest difference between LNG and CNG is their form: CNG is in a light gaseous state so in case of a leak, it will just dissipate. LNG however is a liquid, making any leaks much more dangerous. That being said, CNG is a safer choice, however there are many other factors to compare when choosing which energy source to prefer.