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_70 ( value___usd__ VARCHAR, country VARCHAR, date VARCHAR, business VARCHAR )

### Question ###
In New Zealand, what's the value that has an unknown date and is an energy business?

### Accurate SQL ###

SELECT value___usd__ FROM table_name_70 WHERE date = "unknown" AND business = "energy" AND country = "new zealand"