Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_44 (voltage__kv_ VARCHAR, supply_point VARCHAR, country VARCHAR, power__mw_ VARCHAR)

### Question ###
How much Voltage (kV) has a Country of argentina, and a Power (MW) larger than 30, and a Supply point of yacyretá?

### Accurate SQL ###

SELECT COUNT(voltage__kv_) FROM table_name_44 WHERE country = "argentina" AND power__mw_ > 30 AND supply_point = "yacyretá"