Until now, GRIHA's building ratings have ensured installations of altogether 40,000 m² of collector area. TERI's new targets could lead to an additional 80,000 m² of collector area in buildings which will be rated by GRIHA.

According to Chitrangada Bisht, Area Convenor at GRIHA, there are already 400 projects nationwide registered with the label and solar collectors do find favour as an energy-saving measure. She further points to the misconception among builders that having a building rated by GRIHA will add to its costs. Bisht counters that if GRIHA criteria are applied at the conceptual stage, the additional investments will pay off easily through the energy saved.

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