Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_31 (laps INTEGER, grid VARCHAR, time_retired VARCHAR)
### Question:
How many laps for a grid of over 18 and retired due to electrical failure?
### Answer:
SELECT SUM(laps) FROM table_name_31 WHERE grid > 18 AND time_retired = "electrical"