Solar owners across Pakistan have discovered a frustrating pattern: the system runs perfectly all day, then the inverter shuts down at night — or worse, appliances start dying. The culprit is high grid voltage, and it affects every brand: Livoltek, Growatt, Solis, Inverex, Solax, all of them.
What actually happens at night
After midnight, area load drops and grid voltage rises — often past 250V. Your hybrid inverter sees this and does one of two things. Either it shuts down to protect itself (house goes dark), or it switches to bypass and passes that high voltage straight through to your sockets. Bypass is the dangerous one: your TV, fridge and ACs take the full surge.
The fix: a servo stabilizer in front of the inverter
A servo (SVC) stabilizer sits between the grid and your inverter and holds output steady at 220V no matter what the line does. The inverter never sees the spike, never shuts down, and never bypasses a surge into your home.
Sizing: about 1.5× your inverter
- 6–8kVA inverter → 10kVA stabilizer — Rs 110,000.
- 10kVA inverter → 15kVA stabilizer — Rs 175,000.
- Bigger systems (three-phase, commercial): we build servo stabilizers to 500kVA — see business & tender supply.
The headroom matters: compressors and pumps draw heavy current at start-up, and an undersized stabilizer will trip exactly when you need it.
Why Voltec
We have manufactured stabilizers in Lahore since 1995 — 100% pure copper windings, single and 3-phase, with installation and service. Every unit is tested before it leaves.
Send your inverter size on WhatsApp via our solar page and we will confirm the right stabilizer the same day — or visit the showroom at Abid Market, Temple Road (Mon–Sat, 10am–8pm).
