NEW DELHI: The West Asia conflict is pushing govt to look at a faster transition towards renewable energy, including the possibility of increasing ethanol blending in petrol from 20-25%, although in a calibrated manner. This will come along with increased refining capacity within the country, so that there is a buffer in the system and greater domestic resilience, those familiar with the discussions said, pointing out that sustaining refineries at 100% capacity is not sustainable.While Barmer refinery has begun operations, expansion at Numaligarh is underway and work on integrated refineries on the west coast is also under focus. Apart from a mega refinery in Maharashtra, a new facility in Gujarat is also planned.Officials said rising use of renewables, biofuels and hydrogen in the energy mix was no longer just an environmental issue, but a strategic necessity in a situation like the present one, where the military conflict in West Asia has disrupted global energy supplies, triggering a supply crisis and a surge in oil and gas prices.According to officials, 20% ethanol blending has helped India save 4.5 crore barrels of crude annually and reduce foreign exchange outflow by around ₹1.5 lakh crore so far. Given the concerns over fuel efficiency and impact on vehicles, govt is expected to take a gradual approach that addresses the anxiety on ethanol blending. The third pillar on energy is expanding the strategic petroleum reserves.