This tender invites bids from eligible contractors in Kalat for the supply and installation of solar systems at multiple Water Supply Schemes (WSS). Issued by the Public Health Engineering Department (PHED), Kalat Division, it focuses on renewable energy solutions to enhance water supply infrastructure in Balochistan. The scope covers solarization at five key locations including Hakim Post, Chapper, Govt Girls College, Killi Rahim Abad Chotank, and Killi Sanjidi. Each site requires the installation of photovoltaic modules and associated equipment to ensure reliable power for water pumping. The engineering challenge lies in adapting solar technology to remote, arid environments while maintaining system efficiency and durability. Bidders must hold PEC Category C-1 registration and be on the Active Taxpayer List (ATL). Compliance with ISO 9001:2015, ISO 45001:2018, and ISO 22000:2018 certifications is mandatory, alongside IEC standards for photovoltaic modules. Firms should demonstrate a turnover of at least PKR 8,921,339 and provide evidence of similar completed projects over the last three years. The tender also requires a 2% bid security in the form of a Call Deposit Receipt (CDR). Submission deadline is set for 10 February 2026 at 10:00 AM, with bid opening at 11:00 AM on the same day. Bids must be submitted in sealed envelopes to the Executive Engineer, PHED Division Kalat, located in Kohing Kalat. Tender documents are available for PKR 2,000 through a green challan. Pro-Tip: Carefully verify the bid security format and ensure all certifications are current and properly documented. Missing or incorrect bid security often leads to disqualification, so double-check the bank deposit details and accompanying paperwork before submission.