Solar power tariff remained below Rs 5 per unit in the latest auction conducted by state-run NTPCBSE 1.03 % Ltd for 500 MW capacity at Pavagada Solar Park in Tumkur, Karnataka. The lowest tariff was quoted at Rs 4.78 per unit in the auction concluded yesterday by the NTPC Ltd for its solar capacity at Pavagada Solar Park in Tumkur district of Karnataka,” a source said. One company quoted Rs 4.8 per unit while four firms gave same price of Rs 4.79 per unit under the auction for solar project,” he said. However, the tariffs bid were above the record low of 4.34/unit seen in January. However, the tariffs bid were above the record low of 4.34/unit seen in January. RattanIndia arm Yarrow Infrastructure Ltd quoted the lowest price of Rs 4.78 per unit and bagged 50 MW project under the auction conducted by NTPC yesterday. Adani, Fortum India, ACME and Tata Power Renewable quoted the price of Rs 4.79 per unit and bagged 100 MW each under the solar power park project. Solar power tariff had touched all time low of Rs 4.63 per unit in November last year when SunEdison quoted the price of electricity in an e-auction by NTPC for 500 MW project in solar power park in Kurnool District of Andhra Pradesh. After that the solar power tariff fell to another all-time low of Rs 4.34 per unit when Finland-based energy firm Fortum Finnsurya Energy quoted this price to bag 70 MW solar plant under NTPC’s Bhadla Solar Park tender in January.