This tender invites bids for the procurement of a 12kW three-phase hybrid solar inverter solution along with LiFePO4 battery energy storage systems for the Special Technology Zones Authority (STZA) head office in Islamabad. The procurement falls under the Power, Electrical & Solar Equipment category and is managed by the Special Technology Zones Authority, Cabinet Division. The project requires delivery, installation, and commissioning of the solar inverter systems within two months of contract award, with installation and operationalization to be completed within four weeks after delivery. The scope includes supply of three 12kW hybrid inverters with features such as IP65 ingress protection, multiple communication interfaces including RS485, CAN, and WiFi, and compatibility with LiFePO4 batteries. The battery systems must have a minimum usable energy capacity of 13.5 kWh, integrated smart battery management systems, and a minimum cycle life of 6,000 cycles at 80% depth of discharge. Installation involves integration with existing 3-phase distribution boards, automatic bypass switches, over/under voltage protection, and proper cabling and phase balancing. The site is located at the STZA office on the 16th Floor, New State Life Tower, Jinnah Avenue, Islamabad. Bidders must be registered with relevant tax authorities, be on the Active Taxpayers List (ATL) of FBR, and provide an affidavit confirming no blacklisting or insolvency. The bid security is PKR 248,000 in the form of a Pay Order valid for 180 days. The bid validity period is 180 days, and the performance guarantee required is 10% of the contract amount. The financial bid must be submitted via the EPADS online portal by the deadline, with hard copies not accepted unless accompanied by the online submission. Submission deadline is **17th February 2026 at 12:00 PM**, with technical bids opening at 12:30 PM the same day at the STZA office. The address for submission and bid opening is Special Technology Zones Authority, 16th Floor, New State Life Tower, Plot # 61, Jinnah Avenue, Islamabad. Pro-Tip: Ensure your bid includes the prescribed affidavit on stamp paper and the bid security Pay Order as per the tender requirements. Missing these often leads to disqualification. Also, confirm your bid is submitted on EPADS before the deadline, as hard copy bids without online submission will be rejected.