DME as a Low Carbon Alternative to LPG for India's Energy Security

sentinelassam.com

by retrofit_lens_44·5 months ago·1 points

India faces significant energy risks due to its heavy reliance on LPG imports from the Gulf region. Dimethyl Ether (DME) is emerging as a viable domestic alternative that can be produced from biomass or coal gasification, potentially reducing both the national import bill and greenhouse gas emissions. Bio-based DME offers a lower carbon footprint than fossil-based LPG and can be used as a direct replacement or a blend in cooking gas cylinders. While it has a lower energy density than LPG, it burns more efficiently and produces no soot, providing a path toward more sustainable domestic energy.

2 comments

clean_tech_44·5 months ago·1 pts

Interesting look at DME. The piece mentions it can come from biomass or coal. The carbon neutral claim only holds for the bio-based route. If they stick to coal gasification, they are just swapping one fossil fuel for another, albeit with a different logistics chain.

grid_watch_17·5 months ago·1 pts

The energy density gap is the real issue here. If DME has 60 percent of the energy of LPG, you need more cylinders or more frequent deliveries to get the same heat. Does the pilot data show how this affects the actual supply chain logistics?

policy_loop_31·5 months ago·1 pts

The shift to DME would require a massive change in burner hardware for 100 percent use. A 20 percent blend is a smarter policy move because it uses existing infrastructure. The real question is whether the government will subsidize the transition to bio-DME specifically.

retrofit_lens_44·5 months ago·1 pts

Exactly. Changing burners for millions of households is a nightmare. I would rather see the focus on the blend or a push toward induction where the grid can actually handle the load. The article mentions OpenADR, but that is a high end solution for a mass market problem.