Procurement procedure for COMPANYIA D’AIGÜES DE SABADELL, S.A. for the SUPPLY, INSTALLATION AND COMMISSIONING OF TWO COGENERATION ENGINES WITH A BIOGAS TREATMENT SYSTEM AT THE "EDARS" IN SABADELL, to be awarded through an open procedure.

Companyia d'Aigües de Sabadell, S.A.

Plazo

El plazo para la recepción de ofertas era de 2026-11-03. La contratación se publicó en 2026-10-19.

¿A quién?

• Companyia d'Aigües de Sabadell, S.A.

¿Cómo?

• Turbinas y motores › Motores (potencia motriz)

¿dónde?

• Cataluña › Barcelona
• Luxembourg › Luxembourg

Historial de adquisiciones

Fecha	Documento
2026-10-19	Anuncio de licitación

Anuncio de licitación (2026-10-19)
Objeto
Alcance de la contratación
Título: Procurement procedure for COMPANYIA D’AIGÜES DE SABADELL, S.A. for the SUPPLY, INSTALLATION AND COMMISSIONING OF TWO COGENERATION ENGINES WITH A BIOGAS TREATMENT SYSTEM AT THE "EDARS" IN SABADELL, to be awarded through an open procedure.
Número de referencia: N.º EXPEDIENTE: AS/PO/2026/02
Breve descripción:

Tipo de contrato: Suministros
Productos/servicios: Motores (potencia motriz) 📦
Valor estimado sin IVA: 1996629.49 EUR 💰
Naturaleza complementaria del contrato: Servicios
Información sobre los lotes
Este contrato se divide en lotes ✅
Número máximo de lotes que pueden adjudicarse a un licitador: 2
Las ofertas podrán presentarse por un número máximo de lotes: 2

1️⃣
Identificador interno: LOT_1 EDAR RIU SEC
Título: LOT_1 EDAR RIU SEC
Valor estimado sin IVA: 1087317.55 EUR 💰
Descripción de la contratación:

Supply, installation and commissioning of a cogeneration engine with a biogas treatment system at the Riu Sec WWTP (Sabadell).

Código postal: 08202
Localidad: Sabadell
País: España 🇪🇸
Lugar de ejecución: Barcelona 🏙️
Duración: 28 semanas
Número máximo de renovaciones: 0
Información sobre opciones
Opciones ✅
Descripción de las opciones: Without extensions.
Criterios de adjudicación
Criterio:

Best price-quality ratio.

Mejor relación calidad-precio.

Título
Número de identificación del lote: LOT-0001

2️⃣
Identificador interno: LOT_2 EDAR RIU RIPOLL
Título: LOT_2 EDAR RIU RIPOLL
Valor estimado sin IVA: 909311.94 EUR 💰
Descripción de la contratación:

Supply, installation and commissioning of a cogeneration engine with a biogas treatment system at the Riu Ripoll WWTP (Sabadell).

Código postal: 08205
Título
Número de identificación del lote: LOT-0002

Procedimiento
Tipo de procedimiento
Procedimiento abierto ✅
Base jurídica: Directiva 2014/25/UE
Principales características del procedimiento: Open procedure with urgent processing.
Procedimiento acelerado:

COMPANYIA D'AIGÜES DE SABADELL, S.A. manages the integrated water cycle service in the municipality of Sabadell, which includes the public services of potable and non-potable water supply, trunk sewerage and wastewater treatment. The wastewater treatment facilities include the Sabadell-Riu Sec Wastewater Treatment Plant (WWTP Riu Sec) and the Sabadell-Riu Ripoll Wastewater Treatment Plant (WWTP Riu Ripoll). At present, both at the Riu Sec WWTP and the Riu Ripoll WWTP, there are periods during which biogas production exceeds the energy recovery capacity of the existing cogeneration engines. This limitation makes it necessary to divert the surplus biogas to the flares, where it is burned without any possibility of making use of its energy potential. During the months of August and September, the volume of biogas diverted to the flares at the two facilities amounted to 165,104 Nm³, equivalent to an estimated potential electricity production of 363 MWh. This situation has a significant environmental and energy impact, since the combustion of biogas in the flares generates atmospheric emissions without providing any energy recovery. By contrast, its recovery through cogeneration engines would make it possible to generate renewable electricity, reduce dependence on external electricity supply and avoid the emissions associated with the generation of the electricity thereby displaced. For indicative purposes, the recovery of the potential 363 MWh of electrical energy would have made it possible to avoid approximately 72.6 tonnes of CO₂ associated with the generation of the displaced electricity. In addition, the combustion of biogas in the flares may generate residual emissions of unburned methane, carbon monoxide and other pollutants. The scale of the energy losses recorded shows that this is not an isolated occurrence, but rather an operational limitation requiring priority action. If the rate of surplus biogas observed during the period analysed were to continue, the potential loss of electricity production could reach 2,178 MWh per year. Justification for urgent processing In view of this situation, it is considered necessary to proceed as a matter of urgency with the procurement procedure for the acquisition and installation of the new cogeneration engines at the Riu Sec WWTP and the Riu Ripoll WWTP. The urgency of the measure is based on the need to bring to an end, within the shortest possible timeframe, a situation that entails an ongoing loss of renewable energy resources, atmospheric emissions resulting from combustion without energy recovery, and increased operating costs at the facilities. Accordingly, any delay in implementing the measure would prolong an environmentally and energetically unfavourable situation that is inconsistent with the energy-efficiency objectives applicable to wastewater treatment facilities. For all the foregoing reasons, the need to expedite the procurement procedure on grounds of public and environmental interest is considered duly justified, and urgent processing of the procedure is therefore proposed. In addition, the new cogeneration capacity will provide greater operational flexibility and redundancy, allowing the operation of the engines to be adjusted to actual biogas production and reducing the need to flare biogas during periods when the existing equipment is undergoing maintenance or is otherwise unavailable.

Procedimiento acelerado

COMPANYIA D'AIGÜES DE SABADELL, S.A. manages the integrated water cycle service in the municipality of Sabadell, which includes the public services of potable and non-potable water supply, trunk sewerage and wastewater treatment. The wastewater treatment facilities include the Sabadell-Riu Sec Wastewater Treatment Plant (WWTP Riu Sec) and the Sabadell-Riu Ripoll Wastewater Treatment Plant (WWTP Riu Ripoll).
At present, both at the Riu Sec WWTP and the Riu Ripoll WWTP, there are periods during which biogas production exceeds the energy recovery capacity of the existing cogeneration engines. This limitation makes it necessary to divert the surplus biogas to the flares, where it is burned without any possibility of making use of its energy potential.
During the months of August and September, the volume of biogas diverted to the flares at the two facilities amounted to 165,104 Nm³, equivalent to an estimated potential electricity production of 363 MWh.
This situation has a significant environmental and energy impact, since the combustion of biogas in the flares generates atmospheric emissions without providing any energy recovery. By contrast, its recovery through cogeneration engines would make it possible to generate renewable electricity, reduce dependence on external electricity supply and avoid the emissions associated with the generation of the electricity thereby displaced.
For indicative purposes, the recovery of the potential 363 MWh of electrical energy would have made it possible to avoid approximately 72.6 tonnes of CO₂ associated with the generation of the displaced electricity.
In addition, the combustion of biogas in the flares may generate residual emissions of unburned methane, carbon monoxide and other pollutants. The scale of the energy losses recorded shows that this is not an isolated occurrence, but rather an operational limitation requiring priority action. If the rate of surplus biogas observed during the period analysed were to continue, the potential loss of electricity production could reach 2,178 MWh per year.
Justification for urgent processing
In view of this situation, it is considered necessary to proceed as a matter of urgency with the procurement procedure for the acquisition and installation of the new cogeneration engines at the Riu Sec WWTP and the Riu Ripoll WWTP.
The urgency of the measure is based on the need to bring to an end, within the shortest possible timeframe, a situation that entails an ongoing loss of renewable energy resources, atmospheric emissions resulting from combustion without energy recovery, and increased operating costs at the facilities.
Accordingly, any delay in implementing the measure would prolong an environmentally and energetically unfavourable situation that is inconsistent with the energy-efficiency objectives applicable to wastewater treatment facilities.
For all the foregoing reasons, the need to expedite the procurement procedure on grounds of public and environmental interest is considered duly justified, and urgent processing of the procedure is therefore proposed.
In addition, the new cogeneration capacity will provide greater operational flexibility and redundancy, allowing the operation of the engines to be adjusted to actual biogas production and reducing the need to flare biogas during periods when the existing equipment is undergoing maintenance or is otherwise unavailable.

Información administrativa
Plazo de recepción de las ofertas o solicitudes de participación: 2026-11-03 23:59:59 📅
Condiciones de apertura de las ofertas: 2026-11-09 10:00:00 📅
Lenguas en las que pueden presentarse las ofertas o solicitudes de participación: español 🗣️
Plazo mínimo durante el cual el licitador debe mantener la oferta: 3 meses
Condiciones de la licitación
Se exige una garantía ✅
Fecha de apertura: 2026-11-09 10:00:00 📅
Facturación electrónica: Permitida
Plazo para solicitar información complementaria: 2026-10-26 23:59:59 📅
El contrato contiene condiciones de ejecución ✅

Información jurídica, económica, financiera y técnica
Condiciones de participación
Depósitos y garantías exigidos: See the specific administrative clauses.
Principales condiciones de financiación y modalidades de pago y/o referencia a las disposiciones pertinentes por las que se rigen: See the Specific Administrative Clauses.
Condiciones del contrato
Condiciones de ejecución del contrato: See the specific administrative clauses.

Autoridad contratante
Nombre y dirección
Nombre: Companyia d'Aigües de Sabadell, S.A.
Número de registro nacional: A08071664
Código postal: 08202
Ciudad postal: Sabadell
Región: Barcelona 🏙️
País: España 🇪🇸
Correo electrónico: apino@cassa.es 📧
Teléfono: 620260905 📞
Dirección del perfil de comprador: https://aiguessabadell.tecnicascompetitivas.com/?lang=ca_ES 🌏
Tipo de poder adjudicador
Organismo de Derecho público
Actividad principal
Agua
Comunicación
URL de los documentos: https://aiguessabadell.tecnicascompetitivas.com/?lang=ca_ES 🌏
URL de participación: https://aiguessabadell.tecnicascompetitivas.com/?lang=ca_ES 🌏
Presentación electrónica: Permitida

Información complementaria
Órgano de revisión
Nombre: Companyia d'Aigües de Sabadell, S.A.
Número de registro nacional: A08071664
Código postal: 08202
Ciudad postal: Sabadell
Región: Barcelona 🏙️
País: España 🇪🇸
Correo electrónico: apino@cassa.es 📧
Teléfono: 620260905 📞
Servicio del que puede obtenerse información sobre el procedimiento de recurso
Igual que: Órgano de revisión
Procedimiento de revisión
Información precisa sobre los plazos de los procedimientos de revisión: See the specific administrative clauses.
Información sobre flujos de trabajo electrónicos
Se aceptará la facturación electrónica
Fuente: OJS 2026/S 204-729130 (2026-10-19)

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