Yes — once installed, solar electricity is dramatically cheaper than grid electricity over the system's lifetime, because you're paying once for equipment rather than an ongoing per-unit rate. A typical residential system pays back its upfront cost in roughly 3-5 years through net metering and bill savings, and then continues producing electricity for the remainder of its 25-year panel warranty at essentially no marginal cost beyond routine maintenance.
Upfront cost vs. long-term cost
Grid electricity has no upfront cost but an unlimited ongoing per-unit cost. Solar flips that: a 5kW system costs roughly PKR 800,000-1,200,000 installed but then generates 550-750 units a month, offsetting or eliminating that portion of your grid bill for years. Over a 10-15 year horizon, most households come out significantly ahead with solar, especially as grid tariffs tend to rise over time while your solar system's output stays roughly constant (accounting for gradual, warrantied degradation).
Net metering closes the gap further
- Surplus solar power is exported to the grid and credited against your bill via IESCO net metering.
- This means even electricity you don't use directly still reduces your costs, rather than being wasted.
- Net metering approval takes about 4-6 weeks once documentation is complete — see our net metering application guide for details.
What affects how much cheaper solar is
The size of the gap depends on your household's consumption pattern, system sizing, and how well the system is maintained. Panels lose some efficiency in extreme summer heat and on foggy winter days, but they continue to produce meaningful power in diffuse light, so the annual average still strongly favors solar for most twin-cities households.
Is it worth it for your specific home?
The honest answer depends on your roof, usage, and budget — read our detailed take in is solar worth it for DHA Islamabad homes, or request a free site survey from Tripower to get numbers specific to your property.
Frequently Asked Questions
Do solar savings depend on the season?
Yes, output is typically higher in sunny months and slightly lower during winter fog, but net metering credit and annual averaging smooth out most of this variation over a year.
Is solar cheaper even without net metering?
Solar still reduces grid consumption without net metering, but the payback period is longer because you can't earn credit for unused exported power.
How does inverter quality affect long-term cost?
Higher-quality inverters, typically warrantied 5-10 years, reduce the chance of costly early replacement, which protects your long-term cost advantage over grid electricity.