Is whole house surge protection worth it?
Whole house surge protection is worth it as a baseline. A licensed electrician can add a surge protective device at the main panel, and it will take the edge off large spikes that come in from the grid.
It is a narrow tool, though. RoseWater lists ten kinds of power problem based on IEEE categories, and a surge protector addresses one of them. In a home with a network rack, lighting control, a theater, motorized shades and a security system, the other nine cause most of the trouble.
| Problem | Panel surge protector | RoseWater HUB |
|---|---|---|
| Surges and spikes | Diverts much of the energy | Absorbs it with non-sacrificial protection |
| Lightning | Partial, depends on the device | Rated for up to 40 strikes of 140,000 V |
| Sags and brownouts | No | Yes, batteries fill the gap |
| Electrical noise and harmonics | No | Yes, output under 3% total harmonic distortion |
| Voltage regulation | No | Yes |
| Outages | No | Yes, with zero transfer time |
| Monitoring | Usually none | Remote monitoring and alerts |
What does a whole house surge protector not protect against?
A whole house surge protector does not protect against anything except surges on the power line. It can’t fix a sag, filter noise, hold voltage steady or keep anything running in an outage.
The reason is simple physics. A surge is extra energy, and a surge protector works by sending that extra energy to ground. A sag is the opposite. Energy is missing, and there is nothing to divert. Filling a sag takes stored energy that is already connected to the load, which a surge protector does not have.
Many surge protectors are also sacrificial. They absorb energy by wearing out their own components, so each event uses up some of their capacity. Some show an indicator when they are spent. Many owners never check.
Do I still need plug-in surge protectors?
You may still need point-of-use protection, mostly for the signal lines that come in from outside rather than for power.
Surges don’t only arrive on the electrical service. They can come in on cable and satellite feeds, antenna leads, phone lines and long network runs to outbuildings, docks and gates. Those lines need their own protection where they enter the house. A RoseWater HUB protects the power on the circuits it serves, including the main source, solar input and standby generator power. Your integrator should cover the signal lines as part of the same plan.
Can lightning damage electronics through the power line?
Lightning can damage electronics through the power line, and it does not need a direct hit on your house to do it. A strike on or near the utility lines can send a large surge into the service, and a nearby strike can induce surges on long wire runs.
Homes fed by long overhead lines are more exposed, and that describes a lot of coastal and rural New England. RoseWater HUBs use commercial and military-grade, non-sacrificial lightning protection of the type used on essential systems, rated for up to 40 strikes of 140,000 V. Because it is non-sacrificial, it does not wear itself out with each event. Our Cape Cod and Islands guide covers coastal homes in more detail.
What is the difference between surge protection and power conditioning?
Surge protection reacts to spikes. Power conditioning corrects the power all the time. One is a safety valve and the other is a filter, a regulator and a reserve working together.
A full conditioning system regulates voltage, filters noise and harmonics, absorbs surges and fills in sags with stored energy. Our guide to whole house power conditioning explains each piece, and our How It Works page shows how a HUB puts them together.
What RoseWater does differently
A RoseWater HUB treats surge protection as the floor, not the whole job. Because it is always online with double conversion, the house runs on power the HUB has rebuilt, so spikes, sags and noise on the incoming line never reach the equipment. Batteries are part of the path, so a sag or an outage is covered without a switch.
One RoseWater dealer in Florida, Jeff Galea of Boca Theater and Automation, said nothing else came close “in terms of surge protection and clean power delivery with zero transfer time.” The HUB20 handles a 100 A service, the HUB40 a 200 A service, and the 3-Phase systems 208 V three-phase homes.
How do I know if surges are already damaging equipment?
You usually find out from the pattern of failures, not from one dramatic event. Damage from repeated small surges and sags tends to build up quietly.
Watch for equipment that fails after storms, power supplies that die sooner than they should, LED drivers that burn out early, and devices that need rebooting more often each year. Integrators often hear about these as programming problems. When the same house keeps generating service calls after weather, power is a good place to look. A RoseWater HUB’s built-in monitoring records outages and voltage changes, so once it is installed you can see what the grid is actually doing.
Planning protection for your home
A good plan covers the power and the signal lines together. Start with our Power Plan tool to mark what matters most. We design the RoseWater system around that list, coordinate the panel work with your licensed electrician, and work with your integrator on the signal lines. If you have already lost equipment to a storm, tell us what happened and we will help you find the cause.