Power Quality
Cleaner Power, Longer-Lived Equipment
Clean power, every second. Not just when the grid goes down.
The electricity arriving at your home is rarely as clean as it looks. All day long it carries small sags, sudden spikes, and electrical noise from wildfire season, storms, utility switching, and a grid working harder than it was built to. A power quality system sits between the grid and your home and cleans every watt before it reaches your equipment, whether the grid is up or down. Your appliances, climate systems, lighting, and technology simply run the way they were designed to, and for years longer.
What Power Quality Is
Power quality is about how clean and steady your electricity is, not just whether it is on. The equipment in a modern home is designed to run on a smooth, even wave that repeats 60 times a second. What actually arrives from the grid is pushed around by spikes, pulled down by sags when demand is high, and cluttered with noise from motors, chargers, and everything else on the line.
Almost everything in the house now runs on a circuit board: the refrigerator and range, wine storage, HVAC, pool equipment, the washer and dryer, as well as lighting control and the network. The damage is rarely dramatic. It shows up as flicker, resets, error codes, and appliances and electronics that quietly fail years early.
Not a Backup Battery
Home batteries like Tesla Powerwall and standby generators answer one question: what happens when the grid goes down? They step in during an outage. The rest of the time, which is nearly all of the time, grid power flows straight past them to your equipment — spikes, sags, and noise included.
A power quality system answers a different question: what is the house running on right now? It stays in the path every second, cleaning the power whether the grid is up or down, and its built-in storage means an outage begins without a flicker. That makes it an addition, not an alternative. It works alongside a home energy storage system, a generator, or both. They carry the house through a long outage, and the power quality system makes sure whatever reaches your equipment is clean, whatever the source.
Like Filtered Water
A storage tank is useful if the water main ever breaks, but no one waits for a broken main to start caring about what is in the glass. You filter it all the time, because every glass matters. Power works the same way. A battery or generator is the tank: it earns its keep during an outage, a few hours a year. A power quality system is the filter: it cleans every watt, every day. The best-protected homes have both.
Why It Matters Now
Ting, a sensor network from Whisker Labs with more than a million monitors plugged into American homes, measures household voltage millions of times a second. Its maps show wildfires, storms, heat waves, and even solar storms sending sags, spikes, and distortion across whole regions — including homes that never lose power.
Source: Whisker Labs, Ting impact data
In a study of that data from February to October 2024, 36.5% of homes in one major utility’s territory (Commonwealth Edison) received power with harmonic distortion above the 8% limit in the IEEE 519 standard — and the May 2024 solar storm pushed distortion as high as 25% in some places. Distortion like that overheats motors, compressors, and transformers and shortens their life.
What Matters Most in Your Home?
Pick the systems you would least want to lose — or repair. We’ll recommend a level of protection as you go.
Pick at least one system and we’ll recommend a level of protection.
Three Levels of Protection
Small Format Power Protection
Predictive Power plug-in units protect a small group of equipment. Best for a single spot in the home, like the network, a home office, or a media room.
Sizes range from a unit that plugs into a standard outlet up to one for a large equipment rack or home theater.
Breaker Level Power Protection
A 360 Power Quality system wired into your panel protects a few chosen circuits. A focused choice when only certain things need it, like refrigeration, wine storage, or the equipment rack.
An electrician wires it in, which we coordinate.
Large Format Power Protection
One RoseWater Energy system protects most or all of the house, with a large battery built in. The most complete option, with nearly every outlet and appliance on clean power.
The HUB20 covers a large part of the home (up to 100 amps); the HUB40 covers most or all of it (up to 200 amps). Both work alongside a generator, solar, or a home battery system.
How a Power Plan Works
Walkthrough
We walk the home with you and talk through what matters most — the systems you would least want to lose, where they are fed from, and where equipment could live.
Power Plan & proposal
You get a written Power Plan: which systems are protected at which level, sized to your home and panel, with any electrical work identified and coordinated up front.
Installation & commissioning
Our own team installs and commissions the system. For Breaker Level and Large Format, we work alongside your electrician for the panel wiring.
Training & ongoing support
We walk you through what the system is doing and how to see it, and after that you have our support team — available around the clock.
Why Personal Technology
Local, and staying that way
Based in Alhambra since 2007, serving only the West San Gabriel Valley, with more than 2,000 installations completed. The team that installs your system is the team that answers when you call.
Our own people, every time
Every installer is a trained, certified Personal Technology employee. Subcontracted labor is not our style — that’s a line from our own About page, and we mean it.
Supported after handoff
A power quality system runs quietly for years — and it stays our responsibility, with a support team available around the clock.
Frequently Asked
Is this the same as a Tesla Powerwall or a generator?
No. Those provide backup when the grid is down. Power quality cleans the power every second, and works alongside them.
Do I still need a generator or battery?
For long outages, yes. The power quality system handles the moment the grid fails and cleans your power every day; a generator or battery carries the house through a long outage.
Will it protect my appliances?
Yes. Refrigeration, wine storage, ranges, laundry, HVAC, and pool equipment all run on control boards that are costly to replace. Breaker Level and Large Format protect the circuits they are on.
Where does the equipment go?
Plug-in units live in the equipment rack or on the floor. Breaker Level systems are wired in near the electrical panel. RoseWater systems are floor-standing cabinets in a garage or equipment room.
Do I need an electrician?
For Breaker Level and Large Format, yes, and we coordinate it. The larger plug-in units need a 20-amp or a dedicated 30-amp outlet.
Can I start with one level and add more later?
Yes. Levels combine well, for example plug-in protection in a media room alongside a Breaker Level system for the kitchen.
Where do you work?
We serve the San Gabriel Valley and its foothill communities from our home base in Alhambra — Pasadena, South Pasadena, San Marino, La Cañada Flintridge, Glendale, Altadena, Arcadia, Sierra Madre, Bradbury, Glendora, and neighboring cities.
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