The GST rate of five per cent is finalised on solar PV cells and modules as per the notification dated June 3, 2017 which thus clears the ambiguity surrounding the applicable rate, the rating agency said in a statement issued here today.
"This in turn is expected to have a marginally negative impact on new solar power projects due to an increase in capital cost arising from higher tax rate applicable under GST, given that the solar energy sector has been availing various exemptions and concession rates in indirect taxes," ICRA said.
"With this, the developers who have already won solar power projects under the competitive bidding route especially in last six month period, where the execution is under progress would incur a higher capital cost as against the cost envisaged at the time of bidding," he said.
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According to ICRA, the solar project awards in last 5-6 month period stood at about 2.5-3 GW mainly under National Solar Mission route and state policy route, wherein tariffs have fallen from Rs 4.4 unit in November 2016 to Rs 2.44 in May 2017 for projects in Badla Solar Park in Rajasthan.
The viability of such bid tariffs hinges on structuring of debt with longer tenures, competitive funding costs and the ability of the project developers to keep the cost of modules within the budgeted levels, the rating agency pointed out.