More than 80% of ECG's CO2 emissions are generated by the consumption of fossil fuels, namely diesel and petrol.

Specifically for the projects of the Limburg Water Board, it was decided to implement the projects with biodiesel (HVO). The use of biodiesel reduces CO2 emissions from 18% to as much as 89% in relation to regular diesel.

ECG's ultimate goal is to reduce its total CO2 emissions by 1% every year. ECG's emissions and goals can be read here.

Hydrotreated Vegetable Oil

HVO (also marketed by some suppliers under their own brand names such as CO2fuel or Blue Diesel) stands for "Hydrotreated Vegetable Oil" and is a new type of diesel fuel. It is made from waste oils and residues such as animal fats.

This makes HVO a fossil-free and renewable fuel with enormous sustainability benefits. Think of a very high CO2 reduction of no less than 89% and lower emissions of harmful substances such as particulates, NOx and sulphur. HVO is colourless, clear as water and virtually odourless.

Source: https://www.slumpoil.nl/nieuwsberichten/wat-is-hvo-diesel