IRENE Web-based Do you have the need to perform gas network calculations occasionally or regularly, but would purchasing a software license be a step too far? Would you like to try and discover IRENE first, before perhaps buying one or more licenses? Do you want to be flexible in your geographical location from where you like to perform calculations, e.g. because you do projects on different locations nationally or internationally? Then IRENE Web-based is the perfect solution for you. You can do exactly the same as with an IRENE Pro license, however, you do not need to purchase a license and there are no annual license fees. Instead, you upload your network safely to the online available server and you pay for the results per calculation.