
Built with innovative interlocking wall blocks made from ash, these structures do not require any sand, cement, steel, or mortar, significantly reducing costs and construction time. The use of ash-based building material eliminates the requirement of cement and natural aggregates, leading to lower carbon emission and prevention of topsoil erosion.
A typical house, spanning 30 sqm and featuring a drawing room, bedroom, kitchen, and toilet, can be constructed for just Rs 1,50,000 in a span of 15-20 days. This method ensures durability, as demonstrated by its resilience to diverse weather conditions, including rain, storms, and high winds, for over two years.
Moreover, the houses achieve a remarkable 75% reduction in carbon emissions compared to conventional construction methods. From the foundation to the roof, and even the window and door frames, the entire structure is built using ash-based materials. The design allows the house to be dismantled and re-erected with minimal damage, adding to its practicality and longevity.
The eco-house aligns with the Pradhan Mantri Awas Yojana-Gramin (PMAY-G), providing a scalable and eco-friendly model for affordable rural housing. By addressing waste management and promoting the reuse of industrial byproducts, NTPC’s initiative paves the way for sustainable construction practices. The eco-houses can also be powered by solar energy, thereby strengthening India’s Net Zero commitments.
The transformative housing solution highlights NTPC’s efforts to foster a sustainable future through green construction practices by repurposing ash, a byproduct of thermal power generation, into cost-effective, resilient housing materials.