Solar Thermal Systems, Devices and Components
Storage Water Tank for All Glass Evacuated Tubes Solar Water Heating Systems
Strategic Recommendations for Storage Water Tank (IS 16542:2016)
- Apply for BIS Certification Now – Start the licensing process early to avoid non-compliance at the April 2025 deadline. Ensure product designs, QAPs, and documentation are aligned with IS 16542:2016 requirements.
- Partner with Compliance Experts – ERA Compliance Team can help in documentation preparation, lab test coordination, and ISI marking compliance for solar storage tanks.
- Contact ERA Support – 📧 cs@eraglobal.co.in | 📞 +91 9599296331 | 💬 WhatsApp – for end-to-end assistance in certification filing, testing, and marking approval.
- Track Notifications – Subscribe to ERA NEWSLETTER for Stay updated on any MNRE/BIS amendments or FAQs, especially regarding updates to IS 16542:2016 or enforcement guidelines.
- Gap Analysis & Upgradation – Conduct a technical gap audit of current tank designs (materials, thickness, insulation, anti-corrosion measures, workmanship, safety provisions) to rectify non-conformities before BIS type testing and surveillance.
| Section | Details |
|---|---|
| Product Name | Storage Water Tank for All Glass Evacuated Tubes Solar Water Heating Systems |
| Applicable Indian Standard (IS) No. | IS 16542:2016 |
| Title of Indian Standard | Storage Water Tank for All Glass Evacuated Tubes Solar Water Heating Systems – Specification |
| Quality Control Order | Solar Thermal Systems, Devices and Components (Quality Control) Order, 2024 (MNRE) |
| Notification & Amendments | Notified as S.O. 4485(E) dated October 8, 2024, published in Gazette October 14, 2024; amendments/clarifications to be tracked separately |
| Final Enforcement Date | April 12, 2025 (i.e., 180 days from Gazette publication) |
| Objective & Scope | To ensure thermal efficiency, durability, corrosion resistance, insulation quality, and safety of storage tanks for solar water heating systems through BIS certification |
| Products Covered | Storage Water Tanks designed for use with All Glass Evacuated Tube Solar Water Heating Systems |
| Exemptions | Goods manufactured exclusively for export are exempt. (No MSME phase-in given in this QCO) |
| Industries Impacted | Manufacturers of solar water heating systems; OEMs producing storage tanks; importers of solar storage tanks; distributors/retailers |
| Mandatory Compliance | Must conform to IS 16542:2016, bear ISI mark, and require BIS licence under Scheme-I of Schedule II of BIS (Conformity Assessment) Regulations, 2018 |
| Next Steps for Stakeholders | Apply for BIS licence; conduct testing of tank design/performance in BIS-approved labs; affix ISI mark on tanks and packaging; align technical documentation |
| Legal Framework Provision & Enforcement | Enforced under BIS Act, 2016; non-compliance punishable under Section 29(3) (seizure, fines, imprisonment, suspension/cancellation of licence) |
| Conclusion | From April 12, 2025, storage water tanks for evacuated tube solar water heating systems must comply with IS 16542:2016 and carry BIS certification |
| References / Annexures | Solar Thermal Systems, Devices and Components (QCO), 2024; IS 16542:2016 |
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.
Get in touch with us today
Notification
The product Storage Water Tank for All Glass Evacuated Tubes Solar Water Heating Systems covered under Solar Thermal Systems, Devices and Components (Quality Control) Order, 2024, issued by the Ministry of New & Renewable Energy (MNRE), mandates BIS certification and compulsory ISI marking for Storage Water Tanks for All Glass Evacuated Tubes Solar Water Heating Systems under IS 16542:2016. The Order was notified via S.O. 4485(E) on October 8, 2024, and published in the Gazette on October 14, 2024.
Enforcement Timeline
The Order becomes enforceable from April 12, 2025, i.e., 180 days after Gazette publication. All manufacturers and importers must ensure compliance by this date.
Overview
Storage water tanks are critical components of All Glass Evacuated Tube Solar Water Heating Systems, designed to store and maintain hot water efficiently. The QCO ensures that only safe, durable, and thermally efficient tanks that comply with Indian Standards are sold in the Indian market.
Objective & Scope
 IS 16542:2016 specifies requirements for design, materials (including inner tank coatings/linings), corrosion resistance, insulation performance, thermal retention, and safety provisions in storage water tanks. The scope applies to tanks used with evacuated tube solar water heating systems across residential, institutional, and commercial installations.
Products Covered
 Storage Water Tanks specifically for All Glass Evacuated Tubes Solar Water Heating Systems.
Exemptions Provided
Products manufactured exclusively for export are exempt from the requirements of the QCO.
Industries Impacted
This regulation affects solar water heating system manufacturers, tank fabricators, OEM suppliers, importers of storage tanks, and distributors/retailers.
Mandatory Compliance Requirements
All tanks must comply with IS 16542:2016, obtain a BIS licence under Scheme-I, undergo testing in BIS-recognised labs, and carry the ISI mark on units and packaging.
Legal Provisions, Enforcement & Penalties
 Non-compliance is punishable under Section 29(3) of the BIS Act, 2016, with penalties including seizure of goods, fines, imprisonment, and suspension/cancellation of licences.
Conclusion
From April 12, 2025, Storage Water Tanks for All Glass Evacuated Tube Solar Water Heating Systems must conform to IS 16542:2016 and carry BIS certification, ensuring safety, durability, and quality standardisation in the Indian market.
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.