This means solar modules with comparatively lower efficiency can now be included in the government’s Approved List of Models and Manufacturers (ALMM).
- ALMM: It is a list of models and manufacturers of solar photovoltaic (PV) modules approved by the MNRE.
Key Changes in Solar Efficiency Norms (May 2025 Amendment)
- Efficiency Standards Reduced:
- Previous (Off-grid <200W) Efficiency: Crystalline silicon at 19% and Cadmium Telluride (CdTe) at 18%
- New Standard: Both technologies at 18% efficiency.
- Scope of Change: Applies only to off-grid solar applications below 200W, such as: Solar lanterns, Micro solar grids, Streetlights, Small fans and appliances
- Does not affect larger systems (e.g., rooftop solar, pumps)
- An off-grid solar system: It generates electricity from sunlight and stores it in batteries, allowing it to operate independently of the power grid.
- Creation of a New Category: Introduction of Distributed Renewable Energy (DRE) category to support smaller manufacturers & Wider rural electrification.
- Distributed Renewable Energy (DRE): It refers to electricity generated from renewable sources, like the sun or wind, near the point of use.
Concerns
- Risk of lower energy output per unit area
- Faster degradation of panels may impact long-term reliability
- Need for strict quality enforcement to avoid market saturation with substandard modules
Significance of the Changes
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