Question

what is a large cost associated with solar energy?
emissions caused by the storage of electricity in batteries
the price of labor to install solar panels
increased price of electricity
the use of batteries to store energy

Explanation:

Solar energy systems often require batteries to store excess energy for use when the sun isn't shining. The production, maintenance, and replacement of these batteries are significant costs. Emissions from battery storage are an environmental concern but not a large direct cost. Labor for installing solar panels is a cost but not as large as battery - related costs. Solar energy typically aims to reduce electricity costs, so increased electricity price is incorrect.

Answer:

the use of batteries to store energy