System Maintenance: On Monday, April 14, 2025, from 8:00 PM to 9:00 PM visibility to our Storm Center Map, notification updates, and preferences will not be available. You may report an outage online or by calling (210) 353-4357.

A portable generator can be an ideal secondary source of power––especially during power failures. But it can be dangerous if it’s not used appropriately. Before operating a generator, read the manual, make sure you understand it, and call a professional if you have any doubts.
Here are some safety tips:
- Generators should be placed at least 25 feet from a home or building
- Never use a generator in an enclosed space
- Make sure your generator is properly grounded
- Generators should not be connected directly to household wiring except by a qualified electrician.
- Use only 3-prong extension cords with appropriate watts or amps ratings
- Never overload your generator
- Connect using a ground fault circuit interrupter (GFCI), and
- Turn off all appliances powered by the generator before shutting it down
Some dangers associated with generators include:
- Shocks and electrocution
- Carbon monoxide poisoning
- Fires caused by unsafe fuel handling, and
- Noise and vibration hazards