Sponsored by
Stop Paying for 6 Tools. One AI Does It All
Most e-commerce sellers are running their store across 6 to 8 separate tools — and paying hundreds of dollars a month for the privilege. StoreClaw replaces your entire stack with one autonomous AI engine that monitors competitors, optimizes listings, automates marketing, and tracks real profit across Shopify, Amazon, and beyond.
It doesn't wait for you to ask. It runs 24/7 in the background, so you wake up to a full dashboard instead of a list of things you forgot to check.
Connect your store, and StoreClaw gets to work — no prompts, no complex setup, no six-app stack.
Free to start. No credit card required.
Walk into any solar distributor in Manila or Cebu today and you'll see panels labeled PERC, TOPCon, N-Type, Bifacial, HJT, and HPBC. Most homeowners — and even some installers — have no idea what these mean or which is actually better for Philippine conditions.
The Technology Timeline
Technology | Generation | Market Share (2026) | Status |
|---|---|---|---|
BSF (Aluminum Back Surface Field) | 1st gen | <5% | Obsolete |
PERC (Passivated Emitter Rear Cell) | 2nd gen | ~40% | Mature, still dominant |
TOPCon (Tunnel Oxide Passivated Contact) | 3rd gen | ~45% | Current mainstream |
HJT (Heterojunction Technology) | 3rd gen | ~8% | Premium niche |
HPBC (High-Performance Back Contact) | 3rd gen | ~2% | LONGi proprietary |
PERC — The Workhorse
How it works: A passivation layer on the rear cell surface reduces electron recombination, boosting efficiency vs. standard BSF cells.
Efficiency range: 20–22%
Temperature coefficient: ~-0.35%/°C
Best for: Budget-conscious buyers who want proven, reliable technology. Seraphim, AE Solar — excellent PERC options at lower price points.
Philippine suitability: Good. Proven 10+ year track record in tropical climates.
TOPCon (N-Type) — The New Standard
How it works: N-type silicon substrate (lower impurities than P-type) with a tunnel oxide layer and polysilicon layer on the rear. Significantly reduces recombination losses.
Efficiency range: 22–24%
Temperature coefficient: ~-0.29%/°C (better than PERC in heat)
Best for: Homeowners who want maximum output per panel — especially important on small roofs where space is limited.
Philippine suitability: Excellent. The lower temperature coefficient means TOPCon loses less efficiency during hot Philippine summers (panels regularly reach 55-65°C).
Brands available in PH: JA Solar DeepBlue 4.0, Trina Vertex N, JinkoSolar Tiger Neo, LONGi Hi-MO 7
How it works: Combines crystalline silicon with thin amorphous silicon layers on both sides, enabling extremely low recombination losses and excellent low-light performance.
Efficiency range: 23–25%
Temperature coefficient: ~-0.24%/°C (best of all mainstream technologies)
Best for: High-performance applications where every kWh matters — commercial rooftops, systems with shading challenges, premium residential builds.
Limitation: Higher cost, fewer brands available in PH market.
Which Technology for the Philippine Climate?
Factor | PERC | TOPCon | HJT |
|---|---|---|---|
Price per watt | Lowest | Mid | Highest |
Efficiency | 20-22% | 22-24% | 23-25% |
Heat performance | Good | Better | Best |
Low-light performance | Good | Good | Excellent |
Degradation rate | 0.45%/yr | 0.40%/yr | 0.25%/yr |
25-yr output retention | ~88% | ~90% | ~94% |
PH market availability | Wide | Wide | Limited |
Recommendation for most Philippine homeowners: TOPCon (N-Type) offers the best balance of performance and price in 2026. The lower temperature coefficient directly benefits systems in hot tropical conditions — you get 2-4% more real-world output vs. PERC at the same nameplate wattage.
Engr. Jason Morales — Founder, SolarEnergyPH