Refer to the Department of Energy's "Guide to Renewable Energy."
How does the article make a connection between solar and wind systems?
A: Buyers need to check zoning laws and building codes when considering wind systems, while those wanting solar systems do not need to.
B: Solar and wind systems are both grid-connected, so users can sell back their excess energy, making their costs more feasible.
C: Homeowners should keep the space requirements in mind for solar panels, but wind turbine towers have no such restrictions.
D: Solar and wind systems can be cost-effective, but both depend on the availability of their energy sources to work.
