SIA-Phase 31 in parts & SIA-Phases 32-53 Civil Engineer as Overall Manager Renovation of Fish Passage Main Power Plant and Compensation Power Plant WKW Aarberg
About This Opportunity
This is a services contract in the energy and power and architecture and engineering sectors. Located in Switzerland, Europe, this opportunity is open to firms and consortiums. Proposals must be submitted before July 10, 2026.
Published through SIMAP Switzerland, a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for services in the energy and power sector. Service contracts are typically evaluated on both technical quality and price, and may require bidders to demonstrate relevant experience and qualified personnel. Interested parties should review the full documentation on the original source before submitting their proposal.
Description
Auto-translated from GermanBKW Energie AG owns, is licensed for, and operates the Aarberg hydroelectric power plant (WKW) on the Aare river. The Aarberg WKW uses the water of the Aare river for electricity generation in accordance with the current water use concession. The Aarberg weir and the main and compensation power plants are located in the municipality of Aarberg. Most of the water is turbined through the main power plant into the Aare-Hagneck canal. The compensation power plant turbines between 3.5 and 5.5 m3/s into the Alte Aare. The Aarberg main power plant is a block power plant with two vertical turbine units. With a maximum usable head of 8.9 m and a maximum usable water volume of 190 m3/s, the Aarberg power plant annually produces around 82 GWh of renewable energy on average over many years. The water use concession ends on September 29, 2048. Due to its central location in the main Aare migration corridor, the high number of species, and the long stretch to be connected, the Aarberg WKW is a priority site for the restoration of fish passage for the canton of Bern. Both existing fish passages of the main and compensation power plants do not meet the requirements of the inter-cantonal Aare planning (IKAP). They were therefore assessed as requiring remediation in the cantonal strategic planning for the restoration of fish passage. Based on the Water Protection Act (GSchG) and the Federal Act on Fisheries (BGF), the concessionaire and operator of the facility was obliged by the remediation orders of March 7, 2016, and March 3, 2022 (adjustment of remediation deadlines), to implement appropriate measures to restore fish passage [Part D1]. The remediation of the upstream fish passage at the main power plant was assigned a very high priority. As early as 2006, BKW Grid & Hydro Engineering, on behalf of the operator BKW Hydro, had prepared a variant study [Part D2] and a preliminary project for both the main power plant and the compensation power plant. Due to the high costs, the preliminary project for the main power plant was classified as disproportionate by the FOEN and rejected for extensive revision and optimization [Part D3]. For the compensation power plant, based on the preliminary project, the best variant to be implemented was determined based on the substantive review and hearing and ordered by the Canton of Bern [Part D4]. The focus of the tendered planning services is on the design and implementation of measures to improve fish passage, with the priority implementation of upstream fish passages for the main and compensation power plants, taking into account and planning possible future downstream fish passage measures. The project for the remediation of fish passage at the Aarberg WKW pursues these overarching goals: · Establishment of upstream fish passage in accordance with the requirements of the inter-cantonal Aare planning (IKAP) for the main and compensation power plants · Conflict-free integration with future remediation measures for downstream fish passage (fish protection and downstream passage) · Proportionality of remediation measures (costs vs. ecological benefit) · Minimal production downtime during the implementation of remediation measures · Minimal production losses during the operation of the remediated upstream fish passage aids · Close coordination with cantonal specialist authorities and the FOEN
Data provenance
This notice is sourced from SIMAP Switzerland and was originally published on May 19, 2026. Last refreshed 19 days ago. Original language: German. BidsFactory mirrors official procurement notices and links back to the source for full legal text.
About BKW Energie AG - Procurement Services
BKW Energie AG - Procurement Services has issued 10 procurement notices on BidsFactory, including 4 currently open and 5 awarded contracts. Activity concentrates in Architecture & Engineering Services, Information & Communication Technology, and General Supplies & Services. All notices are published for Switzerland. Notices are distributed via TED - Tenders Electronic Daily (EU) and SIMAP Switzerland. Most recent publication: June 3, 2026.
Frequently asked questions about this tender
When does this tender close?
The submission deadline is July 10, 2026. You have 11 days left to prepare and submit your proposal to the contracting authority.
Who is the contracting authority?
This notice was issued by BKW Energie AG - Procurement Services in Switzerland. The authority is responsible for evaluating bids, awarding the contract, and managing performance.
What type of contract is this?
This is a Services contract in the Energy & Power sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.
Where will the contract be performed?
The contract is for delivery in Switzerland. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.
How can I submit a bid?
Visit SIMAP Switzerland to access the full notice, required documents, and submission instructions provided by the contracting authority.
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