Yes the Maryland Energy Storage Income Tax Credit Program still exist for 2019.

I have the same question. I want to know how to add this to my taxes to file for the benefit. I don't see anything to click on or any options to add the MD Energy Storage Income Tax Credit. Question is how do you add it to taxes?

The Maryland Energy Storage Income Tax Credit must be reported on form 500CR.

Unfortunately, TurboTax does not support this form, which is for Business Tax Credits.

Note that this credit is available only by application to the state, because the amount of credits available from the state was quite limited. As of January 21, 2020, there was no credit left in any case.

Please see the Maryland state website on this.

Not sure if it will work but I mailed it in to see if MD accepts it or tells me what to do. I am not a tax pro or not a CPA:
I printed my Form 502 after paying on TurboTax. I mailed in with the completed 500CR, 500CRW and MEA Tax Credit Certificate from State of MD. Once I printed the Form 502 I modified line 43 sentence by writing in the information about the MD Energy Storage Income Tax Credit. Part R line 1 and Part AAA Line 18 of Form 500CR/500CRW. On line 43 I wrote in $5000 (for the Tax Credit), Line 44 I added $5000 to the amount listed after printing on TurboTax, and also added $5000 to line 46 and 48 for the total.

Not sure if it will work but I mailed it in to see if MD accepts it or tells me what to do. I am not a tax pro or not a CPA.

Not sure if it will work but I mailed it in to see if MD accepts it or tells me what to do. I am not a tax pro or not a CPA:
I printed my Form 502 after paying on TurboTax. I mailed in with the completed 500CR, 500CRW and MEA Tax Credit Certificate from State of MD. Once I printed the Form 502 I modified line 43 sentence by writing in the information about the MD Energy Storage Income Tax Credit. Part R line 1 and Part AAA Line 18 of Form 500CR/500CRW. On line 43 I wrote in $5000 (for the Tax Credit), Line 44 I added $5000 to the amount listed after printing on TurboTax, and also added $5000 to line 46 and 48 for the total.

Again Not sure if it will work but I mailed it in to see if MD accepts it or tells me what to do. I am not a tax pro or not a CPA.

But I will let you know what happens. 

Just to update you all. It did work for me. 

Update: What I tried above worked. 

Some credits are entered on the federal return and TurboTax transfers them over  to the state return and other credits are entered directly on the state return.  It sounds like you have resolved your issue, but if you are still having issues, feel free to respond here.  😉