Answer: incentives to invest in large-scale projects built within the U.S., such as building batteries for electric cars.
Explanation:
An incentive is the “cash or near-cash assistance that's provided in order to either retain or attract business operations.
Following the information given in the question, Mr Grove believes that incentives to invest in large-scale projects built within the U.S., such as building batteries for electric cars will be a better use of the financial resources of the country.