| A | B |
| Serious computer users | are installing uninterruptible power supplies (UPS) |
| The battery of a wind/PV hybrid system | can be smaller than the battery required for a one-resource-only system |
| The stand-by generator of any PV-only system | can be removed, along with the fuel that was burned in it. |
| Hybrid system owners | advocate for the energy saving movements around the world. |
| Hybrid systems | are less expensive and far more environmentally benign than fossil- fuel systems |
| Batteries in a hybrid system | are sized to keep the system load for 2 to 3 days. |
| A hybrid system | is a combination of a photovoltaic array and a wind generator |
| Wind Genrators | can not be placed in zones where winds are associated with hurricanes |