One mistake that is commonly seen is installers choosing bifacial panels everywhere because they sound more advanced and show higher wattage on paper. But the reality is that paper ratings do not always translate into real-world performance.
🔹Ground-Mounted Systems
▫️This is where bifacial panels truly justify their reputation.
▫️With proper elevation, spacing, and a reflective surface, the rear side can contribute additional power generation.
▫️The “extra wattage” only becomes real under the right conditions.
Best fit: Bifacial panels (when properly designed)
✔️ Carport Installations
▫️This is a conditional case.
▫️Bifacial panels may provide additional energy yield, but:
▫️Vehicles introduce intermittent shading
▫️Ground reflectivity is often inconsistent
Because of this, the advertised gain is not always achieved.
🔹Result: Can work, but performance is variable.
✔️ Rooftop Installations (Most Common)
▫️This is where the misunderstanding happens the most.
✔️ Bifacial panels may offer:
▫️Higher nameplate ratings
▫️Better marketing appeal
But in reality:
▫️Roof materials such as zinc, aluminium, and concrete have low reflectivity
▫️Panels are usually installed close to the roof surface
▫️Rear-side irradiance becomes almost negligible
This means the “extra wattage” exists mostly on paper rather than in actual output.
🔹Smart Choice: Monofacial Panels
🔹Monofacial panels often provide:
✔️More predictable performance
✔️Lower system cost
✔️Better suitability for rooftop conditions
🔹The Real Engineering Mindset
▫️Do not design solar systems based only on datasheets.
▫️Design based on environmental conditions and actual system behavior.
✔️Ground-mounted systems → Bifacial panels (optimized conditions)
✔️Carports → Depends on site conditions
✔️Rooftop systems → Monofacial panels (practical choice)
👉Note: In solar engineering, efficiency is not about what is advertised — it is about what the system actually delivers on site. When installing solar systems, focus on real energy yield rather than rated wattage alone.
▫️Follow our official Whatsapp channel for expert insights, safety awareness and more↪️
▫️Whatsapp channel:
https://whatsapp.com/channel/0029VbBCTSAEgGfSRSlVZj05
💫TEMUKU 🌍 – Beyond Expectations 💯
Leave a Reply