Guides · 67 Articles from Our Films
Solar, explained plainly.
Written versions of what our engineers explain on YouTube every month: subsidy, sizing, net metering, and the tricks to avoid. New guides are added regularly.
Systems & Equipment · 3 minUpgrading an old off-grid solar system: ANERT-era installations, TATA PCUs and home invertersAkhil Alex Xavier
Subsidy & KSEB · 3 minTransformer capacity: why KSEB sometimes says wait, and what you can do about itAkhil Alex Xavier
Subsidy & KSEB · 3 minUsing the surplus from your home's solar at your shop or office: how wheeling worksAkhil Alex Xavier
Maintenance · 3 minWhat a solar service visit should actually check: our checklist, from a three-year hybrid serviceAkhil Alex Xavier
Cost & Savings · 6 minWhat KSEB bills look like after solar: ten SEDNA customers, in their own wordsAkhil Alex Xavier
Systems & Equipment · 4 minMicrotek lithium inverter and battery: a plug-and-play 1 kVA home backup you control from your phoneAkhil Alex Xavier
Records · 3 minFrom 5 kW to 7 kW in the same roof space: what four years of panel progress did for a 2019 systemAkhil Alex Xavier
Business · 3 minSolar for a toddy shop in Kuttanad: 8 kW on pillars over a paddy field, reached by boatAkhil Alex Xavier
Subsidy & KSEB · 3 minTime-of-day billing on your KSEB bill: the three slots, who it applies to, and what changes once you have solarAkhil Alex Xavier
Subsidy & KSEB · 8 minSolar subsidy in Kerala 2026: eligibility and the application process, step by stepAkhil Alex Xavier
Records · 4 minLow voltage and daytime power cuts: why this Mala home chose a 5 kW hybrid over on-gridAkhil Alex Xavier
Records · 5 minA 5 kW hybrid at a Nedumbassery villa: what a programmable hybrid inverter actually lets you doAkhil Alex Xavier
Systems & Equipment · 7 minSolar water heater guide for Kerala homes: ETC versus flat plate, sizing, installation mistakes and cleaningAkhil Alex Xavier
Guides · 5 minPlanning solar while the house is being built: what to leave in the walls before the plaster goes onAkhil Alex Xavier
Sizing & Roofs · 6 minElevated solar structures in Kerala: when lifting the panels off the roof is the better designAkhil Alex Xavier
Subsidy & KSEB · 4 minWhy your KSEB bill jumped in April despite solar: banking, carry-forward and the March 31 settlementAkhil Alex Xavier
Subsidy & KSEB · 5 minIs KSEB cheating people who installed solar? Net metering, gross metering and the duty line on your billAkhil Alex Xavier
Guides · 6 minHow to choose a solar installer in Kerala: eight checks that separate a company from a phone numberAkhil Alex Xavier
Maintenance · 6 minIs your on-grid solar system actually working? A five-minute check you can do yourselfAkhil Alex Xavier
Subsidy & KSEB · 5 minHow to read your KSEB bill after solar: import, export, banking and generation, line by lineAkhil Alex Xavier
Subsidy & KSEB · 4 minHow to read a Visiontek three-phase net meter: import, export and net in three screensAkhil Alex Xavier
Systems & Equipment · 5 minPower cuts with on-grid solar: the hybrid MPPT fix that keeps the lights on without replacing the inverterAkhil Alex Xavier
Maintenance · 4 minHow to connect a Deye or Sofar inverter to WiFi and the SolarMan app, step by stepAkhil Alex Xavier
Records · 6 minA 5 kW hybrid at Ramanattukara, Kozhikode: what a hybrid system looks like wired, running and approvedAkhil Alex Xavier
Records · 5 minA 5 kW hybrid with lithium at Ranni: the numbers, the price, and who should choose itAkhil Alex Xavier
Systems & Equipment · 4 minHykon Halo 1200: a lithium inverter and battery in one 21 kg box, tested with a drillAkhil Alex Xavier
Systems & Equipment · 5 minTOPCon N-type panels on a raised structure: a 3 kW plant at Poochakkal doing 17 to 18 units a dayAkhil Alex Xavier
Cost & Savings · 4 minTwo Kerala EV owners who fuel from the roof: a Nexon EV on 5 kW and an MG ZS EV on 10 kWAkhil Alex Xavier
Maintenance · 4 minAn automatic solar panel cleaning sprinkler for about ₹1,500: what we fitted, and what it does and does not doAkhil Alex Xavier
Systems & Equipment · 4 minZero-export solar: running an on-grid system without sending power to KSEB, and when it makes senseAkhil Alex Xavier
Guides · 6 minThe complete guide to rooftop solar in Kerala (2026)Akhil Alex Xavier
Cost & Savings · 3 minSolar panel price in Kerala (2026): honest numbers, with and without subsidyAkhil Alex Xavier
Records · 2 minA 4-year-old 5 kW system, on record: 23,000 units generatedAkhil Alex Xavier
Maintenance · 2 minWe serviced a solar system we installed 8 years ago. Here is what we foundAkhil Alex Xavier
Records · 2 minWhen the 2018 floods cut Kerala's grid, this solar system kept a family runningAkhil Alex Xavier- Subsidy & KSEB · 3 minPM Surya Ghar, step by step: the complete application walkthroughAkhil Alex Xavier
Subsidy & KSEB · 2 minDCR vs non-DCR solar panels: which one your project needsAkhil Alex Xavier
Subsidy & KSEB · 2 minKSEB's metering rules are changing. Here is why hybrid systems are risingAkhil Alex Xavier
Cost & Savings · 3 minSolar scam alert: the tricks used on Kerala homeownersAkhil Alex Xavier- Subsidy & KSEB · 2 minPM Surya Ghar subsidy in Kerala: how the ₹78,000 actually reaches youAkhil Alex Xavier
Systems & Equipment · 2 minSolar installed, but the power still went out? Here is whyAkhil Alex Xavier
Maintenance · 2 minHot spots: the silent panel killer nobody checks forAkhil Alex Xavier- Sizing & Roofs · 2 minFive things to check before putting solar on a Kerala roofAkhil Alex Xavier
Maintenance · 2 minDoes your solar company answer the phone after installation?Akhil Alex Xavier
Systems & Equipment · 2 minUpgrading from lead-acid to lithium: what changes and what it costsAkhil Alex Xavier
Subsidy & KSEB · 2 minHow to read your solar net meter (and your first solar bill)Akhil Alex Xavier
Cost & Savings · 2 minThe real cost of waiting one more year to install solarAkhil Alex Xavier
Systems & Equipment · 2 minMicro inverters vs string inverters: does panel-level power make sense here?Akhil Alex Xavier
Systems & Equipment · 2 minSolar street lights in Kerala: where they actually make senseAkhil Alex Xavier
Systems & Equipment · 2 minThe solar car porch: parking that pays its own wayAkhil Alex Xavier
Records · 2 minCase study: installing solar around a rooftop water tankAkhil Alex Xavier
Sizing & Roofs · 2 minOutgrown your solar system? How upgrades from 5 kW to 15 kW workAkhil Alex Xavier
Guides · 2 minWhat a 3 kW home installation actually looks like, start to finishAkhil Alex Xavier
Systems & Equipment · 3 minOn-grid, off-grid or hybrid: choosing right for a Kerala homeAkhil Alex Xavier- Guides · 2 minWhat actually happens to solar generation during Kerala's monsoonAkhil Alex Xavier
- Subsidy & KSEB · 2 minNet metering in Kerala, explained properlyAkhil Alex Xavier
- Sizing & Roofs · 2 minHow much roof does solar actually need? The 2 kW to 10 kW area guideAkhil Alex Xavier
- Maintenance · 2 minDo solar panels need cleaning in Kerala? Yes, and here is the right wayAkhil Alex Xavier
- Maintenance · 2 minSolar AMCs: what annual maintenance actually covers, and when it is worth paying forAkhil Alex Xavier
- Systems & Equipment · 2 minSolar water heater vs electric geyser: the Kerala arithmeticAkhil Alex Xavier
Systems & Equipment · 2 minEarthing, lightning and surge protection: the parts of a solar quote nobody readsAkhil Alex Xavier- Business · 2 minSolar for shops, factories and institutions in KeralaAkhil Alex Xavier
- Sizing & Roofs · 2 minTile, concrete or sheet: how solar mounts on every Kerala roof typeAkhil Alex Xavier
- Cost & Savings · 2 minHow to compare two solar quotes that both say 3 kWAkhil Alex Xavier
Cost & Savings · 2 minCharging an EV from your roof: the Kerala arithmeticAkhil Alex Xavier- Guides · 2 minNine solar myths we hear every week in KeralaAkhil Alex Xavier
