Source: https://tendernation.io/opportunities/01a1408e-74fc-72e4-a0fb-37f1ee477906/spain-miscellaneous-software-development-services-and-computer-systems-disen closed ES open procedure # Miscellaneous software development services and computer systems – Diseño y desarrollo de un nuevo sistema SICILIA2 que se encargue de calcular y facturar las liquidaciones del régimen retributivo específico a las instalaciones de generación a partir de fuentes renovables, cogeneración y residuos (RECORE). [Presidencia de la Comisión Nacional de los Mercados y la Competencia](https://tendernation.io/buyers/presidencia-de-la-comision-nacional-de-los-mercados-y-la-competencia) Estimated value €2,723,407 Published 23 Mar 2026 Deadline Closed 20 Apr 2026 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender El objeto del presente contrato consiste en el diseño y desarrollo de un nuevo sistema SICILIA2 que se encargue de calcular y facturar las liquidaciones del régimen retributivo específico a las instalaciones de generación a partir de fuentes renovables, cogeneración y residuos (RECORE). Dicho sistema sustituirá al actual sistema SICILIA1, sistema se remonta a 2009, momento en el que la entonces Comisión Nacional de Energía comienza a desarrollar esta función. ## CPV classification Miscellaneous software development services and computer systems Source Tenders Electronic Daily (EU) · Notice 199625-2026 [View official notice](https://ted.europa.eu/en/notice/199625-2026) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Presidencia de la Comisión Nacional de los Mercados y la Competencia: past awards and live tenders](https://tendernation.io/buyers/presidencia-de-la-comision-nacional-de-los-mercados-y-la-competencia) [Sector More IT services tenders](https://tendernation.io/sectors/it-services) ## More tenders like this [Cultural Host request · Borough of Telford & Wrekin · 8 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a14571-3c19-7359-b18f-0e67f8b54071/cultural-host-request) [Application service providers – Zakup i wdrożenie systemu finansowo-księgowego · Bankowy Fundusz Gwarancyjny · 58 days left · 15 Dec 2026](https://tendernation.io/opportunities/01a1420f-ff2b-7194-a263-f2f8d4200093/poland-application-service-providers-zakup-i-wdrozenie-systemu-finansowo-ksi) [IT services: consulting, software development, Internet and support – EU aanbesteding Applicatie schuldhulpverlening · Gemeente Helmond · 18 days left · 5 Nov 2026](https://tendernation.io/opportunities/01a1420f-fc91-72ad-925c-d039c10b909c/netherlands-it-services-consulting-software-development-internet-and-suppor) [Recuritment of 3(Three) Senior Full-Stack Software Engineers for EARDIP PIU, MInT · Ministry of Innovation and Technology · 12 days left · 29 Oct 2026](https://tendernation.io/opportunities/01a14db4-0886-72d6-b6ae-a98403a767f3/recuritment-of-3three-senior-full-stack-software-engineers-for-eardip-piu-min) [Recruitment of Junior Information Systems / IT Assistant · Ministry of Environment and Urbanization GDCA · 13 days left · 30 Oct 2026](https://tendernation.io/opportunities/01a14db4-0902-7278-a6b2-3a2b4c1de9ef/recruitment-of-junior-information-systems-it-assistant) [IT services: consulting, software development, Internet and support – Integrale ICT-dienstverlening · Stichting TWijs · 37 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a1420f-fe6a-7260-a422-f753c49297e2/netherlands-it-services-consulting-software-development-internet-and-suppor)