What advantages does a hybrid solar PV and wind power system offer?

What are the advantages of combining the technologies as opposed to using either one individually?

  • A combined wind and solar power system uses two energy sources with a variable output that depends on weather conditions, but they can achieve synergy if used together:

    • The daily output will be more stable, since both energy sources may offset the variations in output mutually. The overall system will be productive during the day and during the night, since wind power isn't limited by sunlight. Of course, production will be higher during the day but it doesn't drop to zero at night.
    • Seasonal variations are offset. Solar PV systems are more productive during the summer, and wind turbines are more productive during the winter since the weather tends to be more windy. Viewed on a yearly basis, the seasonal variations in production are offset.
    • If the installation is off the grid, smaller battery banks are required. It is possible for the system to operate with a smaller energy storage, since one of the two sources operates day and night. Batteries are also subject to a less aggressive charge/discharge cycle, increasing their service life.
    • If a backup diesel gen-set is used, it can also be sized smaller. There is less uncertainty with respect to the combined wind and solar energy supply. If there is need to use a generator, it will be less frequently and for shorter periods of time.

    It is important to note that combined wind & solar systems require particular site conditions to be feasible. Solar power is available virtually everywhere, but the same can't be said of wind power. As a rule of thumb, a wind power system can be considered feasible if the capacity factor is higher tan 20%. Otherwise, the investment may increase unnecessarily with little or no added benefit. If wind speeds are not favorable, 100% solar is a better choice.

  • Registered Users Member
    Employee Employee

    In reply to Leonardo David:

    A place where you can purchase Solar products is RexelUSA: 


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