Yes, Form SC1040TC, Tax Credits, is available in TurboTax for electronic filing.
Please see the TurboTax Help article State forms availability table for TurboTax individual (personal) tax products for more information.
Note that, according to Form SC1040TC, found at Individual Income Tax - Forms,
For taxpayers installing a solar energy system, small hydropower system, or geothermal machinery and equipment in a South Carolina facility. This credit is limited to the lesser of $3,500 per facility or 50% of your tax liability.
