Guides · 226 long pages

Guides from four fans to a mill VFD.

Basic through advanced. Every page has numbers, mistakes, and a sequence. No 1:1 fairy tales after 9 Feb 2026.

226 long guides: sizing, DISCOs, appliances, faults, comparisons, climate. Basic through advanced. No 200-word thin posts.

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Backup hours

Battery sizes

10.24 kWh LFP bank Intermediate
15.36 kWh LFP bank Intermediate
20.48 kWh LFP bank Intermediate
30.72 kWh LFP bank Intermediate
5.12 kWh LFP bank Intermediate

Climate

Coastal solar: salt, aluminium, KE Intermediate
East-west roofs vs south Intermediate
Heatwave yield in Sindh / south Punjab Intermediate
Lahore smog and solar Intermediate
Monsoon and solar yield Basic
Shade, bypass diodes, and chimneys Intermediate
Soiling loss in Pakistan Intermediate
Wind and rooftop structures Advanced
Winter Voc in hills and GB Advanced

Comparisons

14 SWG vs 16 SWG Intermediate
3 kW vs 6 kW solar Intermediate
5 kW vs 10 kW solar house Basic
6 kW vs 8 kW solar Intermediate
6 mm² vs 10 mm² XLPO Intermediate
Aluminium vs GI solar structure Intermediate
Authorised dealer vs street shop Basic
BYD vs Knox battery Intermediate
Dyness vs Knox LFP Intermediate
File net-billing vs zero-export hybrid Intermediate
Growatt vs Deye Intermediate
Huawei vs Inverex Intermediate
HV battery vs 51.2 V house packs Advanced
Hybrid solar vs UPS Intermediate
Inverex vs Deye / Growatt in towns Intermediate
Knox vs Inverex Intermediate
L2 vs L4 stands Intermediate
LFP vs NMC house batteries Intermediate
LFP vs tubular battery for solar Basic
Lithium vs lead-acid for solar Intermediate
LONGi Hi-MO X10 in Pakistan Intermediate
LONGi vs Jinko plates 2026 Basic
Microinverters vs string hybrids in Pakistan Intermediate
PERC vs TOPCon vs HPBC vs HJT Basic
Power optimizers vs string MPPT Intermediate
PVC vs XLPO solar cable Basic
Pylontech vs Dyness Intermediate
Replace a UPS with hybrid solar Intermediate
Solar for a guest house Intermediate
Solar for a home office Intermediate
Solar for warehouse lights Intermediate
Solar specifically for load-shedding Intermediate
Solar without net-metering / without a file Intermediate
Solis vs SolarMax Intermediate
Three-phase vs single-phase solar Intermediate
Washing vs buying more plates Intermediate
Why the calculator disagrees with a 5 kW package Basic

DISCO paperwork

AJKED net-billing Intermediate
FESCO net-billing Intermediate
GEPCO net-billing Intermediate
HESCO net-billing Intermediate
IESCO net-billing Intermediate
K-Electric net-billing Intermediate
LESCO net-billing Intermediate
MEPCO net-billing Intermediate
PESCO net-billing Intermediate
QESCO net-billing Intermediate
SEPCO net-billing Intermediate
TESCO net-billing Intermediate

Faults

App yield looks fake Intermediate
Battery high temperature Intermediate
Battery low-voltage cut Intermediate
CAN lost communication Intermediate
Dongle shows export, DISCO shows zero Intermediate
Firmware mismatch when paralleling Intermediate
Grid relay fault Intermediate
Hybrid inverter faults and what to photograph Intermediate
Inverter beeping Intermediate
Inverter fan always on Intermediate
Inverter overheating Basic
LFP not charging: checklist Intermediate
MC4 melting Intermediate
MPPT not tracking Intermediate
Overload only in load-shedding Basic
Phase loss on 3-phase hybrid Intermediate
PV isolation / insulation fault Intermediate
RCD trips with solar Intermediate
Solar dongle / Wi-Fi stick offline Basic

Glossary+

Bifacial modules Intermediate
DC/AC ratio (PV oversizing) Intermediate
Export enable / zero-export Intermediate
Green meter vs DISCO demand notice Basic
Hot-dip galvanised (HDG) iron Basic
Inverter clipping Intermediate
IP65 inverter rating Basic
L2 vs L3 vs L4 solar structure Basic
MC4 connectors Basic
NEPRA Prosumer Regulations 2026 (plain) Intermediate
PPIB C-1 / C-2 / C-3 installers Intermediate
PSH vs sunshine hours Basic
SPD (surge protection) Intermediate
SRO 251(I)/2026 explained Intermediate
SRO 547 grandfathering Intermediate
Temperature coefficient of power Intermediate

How-to

Backup DB design for hybrid homes Intermediate
Buying on Hall Road / Saddar without getting taken Basic
CT clamps on hybrids Intermediate
Earthing the iron Intermediate
Generator + hybrid Advanced
How much battery for night AC Intermediate
How often to wash panels Basic
How to apply for LESCO net-billing Intermediate
How to check fake Longi / Jinko plates Basic
How to choose 4 mm vs 6 mm vs 10 mm XLPO Intermediate
How to choose a solar installer Basic
How to commission a hybrid + LFP Intermediate
How to compare two solar quotes Basic
How to earth a solar plant Intermediate
How to get a solar quote that is not a flyer Basic
How to increase sanctioned load Intermediate
How to live on Solarman / SmartESS / Knox app Basic
How to read a flash report Basic
How to read a Pakistani electricity bill Basic
How to register plate serials Basic
How to set PYL / LIB on the LCD Intermediate
How to size a solar system Basic
How to size PV strings Intermediate
How to split a backup DB Intermediate
How to torque module clamps Basic
How to wash solar panels in Pakistan Basic
Hybrid inverter settings that actually matter Intermediate
Inverter warranty and town boards Basic
LFP first charge to 100% Intermediate
Lightning, SPD, and rooftop PV Advanced
MDI, sanctioned load, and C&I solar Advanced
Off-grid solar in Pakistan Intermediate
On-grid solar in Pakistan 2026 Basic
Panel serial numbers Basic
Paralleling hybrid inverters Advanced
Solar buyer checklist 2026 (deep) Basic
Solar panel warranty in Pakistan Basic
Time-of-use and solar Advanced
What a handover pack must contain Basic
WhatsApp solar quote red flags Basic
Year-2 O&M: wash, torque, logs Basic

Loads & appliances

Money

Is solar worth it after net-billing 2026? Basic
Meezan solar finance 2026 Intermediate
Solar loan documents Pakistan Intermediate

Plates by wattage

Roofs & mounting

Carport / elevated Intermediate
Ground mount Intermediate
Metal / standing-seam roof Intermediate
North / shade wall for inverter Intermediate
RCC / concrete roof Intermediate
Roof waterproofing + solar Intermediate
Shared / society roof Intermediate
Tile roof Intermediate

Seasonal yield

System sizes

Use cases

Apartment / roof rights solar Intermediate
Clinic and lab solar Intermediate
Cold room solar Advanced
DHA / cantonment solar NOC Intermediate
Farm house solar Intermediate
Harmonics, VFDs, and solar inverters Advanced
Mill / factory solar Advanced
Mosque solar design Basic
Petrol pump / canopy solar Advanced
School solar Intermediate
Solar if you rent Basic
Solar on a new house (pre-wire) Intermediate
Solar pump with VFD Advanced