Harit Urja Mission

Stäubli Original MC4-Evo ready cable coupler (PV-KBT4 / PV-KST4-EVO READY) review

Tue, 06 Oct 2026 00:00:00 GMT

The original MC4 in a tool-free spring-clamp version: 1,500 V, IP68 mated, TÜV-certified to IEC 62852 — and a datasheet that says exactly what it may be mated with.

Polycab Solar H1Z2Z2-K (BS EN 50618) 1.5 kV DC cable review

Tue, 06 Oct 2026 00:00:00 GMT

A properly specified 1,500 V solar DC cable with a complete electrical table — and, unusually, enough data to do your own voltage-drop check.

DEHN DEHNcombo DCB YPV SCI 1000 FM (900 066) review

Tue, 06 Oct 2026 00:00:00 GMT

A combined Type 1 + Type 2 surge arrester for 1,000 V PV strings, with a built-in disconnect and remote fault contact — for use inside an enclosure, not out on the roof.

Genus Power Saksham 145 single-phase smart meter review

Tue, 06 Oct 2026 00:00:00 GMT

An IS 16444 single-phase smart meter with a cellular modem and remote disconnect — but its datasheet never mentions net metering, so confirm the net-meter variant with your DISCOM.

SOLARMAN LSW-3 Wi-Fi stick logger review

Tue, 06 Oct 2026 00:00:00 GMT

A small RS232 Wi-Fi dongle that puts an inverter on a cloud app — with a thin spec sheet and no stated certifications or compatible-inverter list.

Testo 872 thermal imager review

Tue, 06 Oct 2026 00:00:00 GMT

A 320 × 240 hand-held thermal imager with a manual “solar mode” — capable for hot-spot checks at close range, but the manual never describes PV inspection itself.

Fluke IRR1-SOL / IRR2-BT solar irradiance meter review

Tue, 06 Oct 2026 00:00:00 GMT

A hand-held irradiance, temperature, tilt and compass meter for PV surveys and commissioning — accuracy of ±(5% + 5 digits), and a compass referenced to magnetic north.

HT Instruments I-V500w 1,500 V I-V curve tracer review

Tue, 06 Oct 2026 00:00:00 GMT

A 1,500 V I-V curve tracer for testing modules and strings in the field — strong feature list, but the product page leaves out accuracy, battery and IP figures.

K2 Systems BasicRail 22 (2004278) rail for trapezoidal sheet metal roofs review

Tue, 06 Oct 2026 00:00:00 GMT

A 4.8 m aluminium rail for tin-shed (trapezoidal sheet) roofs — a sensible product, but its catalogue page gives no load rating and no India wind-code basis.

Skilancer Solar SS-01 Series waterless cleaning robot review

Tue, 06 Oct 2026 00:00:00 GMT

An Indian waterless robotic cleaner aimed at multi-megawatt plants — published without a datasheet, so we are not rating it, and here is what to ask before you buy any cleaning robot.

Schneider Electric Acti9 C60NA-DC 2P 20 A / 1,000 V DC switch disconnector (A9N61690) review

Tue, 06 Oct 2026 00:00:00 GMT

A DIN-rail DC isolator rated for 1,000 V — but only 20 A at that voltage, which is tighter than it looks against today’s high-current modules.

Indelec Prevectron 3 early streamer emission (ESE) lightning conductor review

Tue, 06 Oct 2026 00:00:00 GMT

A well-documented ESE air terminal with a published protection-radius formula — made under a French standard rather than IEC 62305, so check what your design requires.

CITEL DS50PV-1000 Type 2 PV surge protector review

Tue, 06 Oct 2026 00:00:00 GMT

A pluggable Type 2 PV surge arrester certified to the PV-specific EN 50539-11 and UL 1449 — with mechanical status flags and an optional remote contact.

OBO Bettermann V20 PV surge protection, 1,000 V DC (item 5094608) review

Tue, 06 Oct 2026 00:00:00 GMT

A Type 2 three-pole PV arrester with a stated five-year warranty and a “Y-circuit” design — but no remote contact on the version we read.

L&T Electrical & Automation Aurora single-phase smart meter (IS 16444 Part 1) review

Tue, 06 Oct 2026 00:00:00 GMT

An IS 16444 smart meter with four-quadrant energy measurement, an IS 15959 RF option and a built-in GPRS modem — with specs “as per customer requirement”.

Secure Meters Saral single-phase direct-connected meter (net-metering use) review

Tue, 06 Oct 2026 00:00:00 GMT

A compact, IP54 single-phase meter that Secure says suits net metering — to IS 13779 and IS 15959 rather than the IS 16444 smart-meter standard.

Amphenol Amphe-PV H4 Plus cable connector review

Tue, 06 Oct 2026 00:00:00 GMT

A second genuine connector family: UL 6703 and IEC 62852 listed at 1,500 V on its page, with current ratings by cable size — and a clear warning that H4 mates with H4, not MC4.

FLIR E54 advanced thermal imaging camera (24° lens) review

Tue, 06 Oct 2026 00:00:00 GMT

A 320 × 240, <40 mK thermal camera with a touchscreen and inspection routes — a step up in sensitivity from the Testo 872, with no solar-specific features on its page.

Seaward Solar Survey 200R irradiance meter (396A914) review

Tue, 06 Oct 2026 00:00:00 GMT

A reference-cell irradiance meter with logging and a two-year warranty — but no accuracy figure on its specifications page.

Unger nLITE HiFlo ALU water-fed poles (AN60G master, AN30G extension) review

Tue, 06 Oct 2026 00:00:00 GMT

A professional water-fed pole system for cleaning modules from the ground — with a published weight and length, and solar-specific guidance that sits on a different page from the product.

Sungrow SH5.0RS-20 single-phase hybrid inverter review

Tue, 06 Oct 2026 00:00:00 GMT

A 5 kW single-phase hybrid with 97.7% peak efficiency and an 80–460 V battery window — which means it pairs with high-voltage batteries, not the 48 V packs most Indian homes use.

Huawei SUN2000-5KTL-L1 single-phase battery-ready inverter review

Tue, 06 Oct 2026 00:00:00 GMT

A 98.4% peak-efficiency single-phase inverter with arc-fault protection — hybrid only when paired with Huawei’s high-voltage LUNA2000 battery and a separate backup box.

Solis S6-EH1P6K-L-PLUS single-phase low-voltage hybrid inverter review

Tue, 06 Oct 2026 00:00:00 GMT

A 6 kW, 48 V-class hybrid with a 135 A battery port, <4 ms backup switching and 200% overload — on a datasheet still marked “Preliminary”.

Growatt SPH 5000TL BL-UP single-phase hybrid inverter review

Tue, 06 Oct 2026 00:00:00 GMT

A 48 V-class hybrid with 97.5% efficiency and a 10 ms UPS function — whose datasheet lists 4,000 W of AC power for a model called “5000”.

Livguard LS OG5048M 5 kVA / 48 V MPPT solar power conditioning unit review

Tue, 06 Oct 2026 00:00:00 GMT

What most Indian “hybrid solar inverters” actually are: a 5 kVA lead-acid solar UPS with an MPPT charger — no grid export, no lithium, no remote monitoring on the brochure.

Huawei LUNA2000-5-S0 modular LFP battery (5–15 kWh) review

Tue, 06 Oct 2026 00:00:00 GMT

A modular 5 kWh LFP battery with 100% depth of discharge, IP66 and IEC 62619 — a 350–560 V Huawei-inverter battery, not a drop-in 48 V pack.

Growatt ARK HV 5.1H–25.6H battery system (ARK 2.5H-A1 modules) review

Tue, 06 Oct 2026 00:00:00 GMT

A stackable high-voltage LFP battery with a 10-year warranty and IEC 62619 — with a −10 °C to +45 °C window worth checking against an Indian summer.

Pylontech US5000 4.8 kWh 48 V LFP battery (as published in ZCS datasheet) review

Tue, 06 Oct 2026 00:00:00 GMT

The widely used 48 V rack battery: >6,000 cycles and a 10-year warranty on a distributor’s sheet — with IP20 housing and certifications that omit IEC 62619.

Luminous Helios 51.2V 100Ah LFP lithium battery (5.12 kWh) review

Tue, 06 Oct 2026 00:00:00 GMT

An Indian-brand 5.12 kWh LFP battery at a listed ₹99,999 with a 60-month warranty — and 3,000 cycles, IP20 and no BIS or BMS details on the page.

Premier Energies 144 Half-Cut TOPCon Bifacial Dual Glass (PE-144 THGB, 560–590W) review

Mon, 05 Oct 2026 00:00:00 GMT

A TOPCon module whose datasheet shows an ALMM badge and in-house cells — with the DCR certificate still to ask for.

Deye SUN-5K-SG04LP1-EU-SM2 review

Mon, 05 Oct 2026 00:00:00 GMT

A single-phase 5 kW hybrid with a 120 A battery port and AC-coupling — the EU-variant datasheet and your local service are what to confirm.

ALMM List-I vs List-II Decoded — What Each Rule Actually Requires

Sun, 23 Aug 2026 00:00:00 GMT

Two different ALMM lists, two different components, two different deadlines. A short, plain reference to which rule applies to your project — and which does not.

Net Metering vs Gross Metering by State: MSEDCL, UPPCL, BESCOM & TANGEDCO Compared

Sun, 23 Aug 2026 00:00:00 GMT

The three metering models exist everywhere — but the capacity band, banking rules, and buyback rate your specific DISCOM actually applies decide what your solar exports are really worth.

Rooftop Solar Structural Safety: What the Wind-Load Numbers Actually Mean

Sun, 23 Aug 2026 00:00:00 GMT

A panel’s Pa rating and a structure’s km/h rating measure two different things — and the anchoring underneath both is usually the actual weak link.

Is Solar Battery Storage Worth It in India? The Real Math

Sun, 23 Aug 2026 00:00:00 GMT

Net metering already banks your surplus solar with the grid in most states — so a battery is really paying for backup and timing, not extra bill savings. Illustrative numbers using a real, reviewed battery.

Tata Power Solar TP540HG10B (Glass-Glass) review

Sun, 23 Aug 2026 00:00:00 GMT

A specific, datasheet-verified bifacial module from Tata’s glass-glass line — not just the brand, the exact model.

Deye SUN-5K-SG04LP3-EU review

Sun, 23 Aug 2026 00:00:00 GMT

A well-specified low-voltage hybrid inverter on paper — the India-market SKU and local service backing are what you still need to confirm.

Waaree Elite Series N-Type TOPCon (BiN-08-565 to BiN-08-600) review

Sun, 23 Aug 2026 00:00:00 GMT

A newer-generation TOPCon module with a genuinely lower temperature coefficient than Mono PERC — the real advantage for Indian summer heat.

Loom Solar CAML10051-WM (5.12 kWh LFP Wall Battery) review

Sun, 23 Aug 2026 00:00:00 GMT

A precisely-specified 5.12kWh wall battery with genuinely strong round-trip efficiency — the real gap is that BIS certification isn’t stated.

Growatt MIN 5000TL-X review

Sun, 23 Aug 2026 00:00:00 GMT

Strong raw efficiency and a familiar India-installed brand — but confirm whether fire-risk arc-fault protection is standard or an add-on.

Solis S6-GR1P3.6K-M review

Sun, 23 Aug 2026 00:00:00 GMT

A compact, quiet entry-level string inverter for smaller residential systems — verified at 3.6kW, not the full "3K–6K" range.

Vikram Solar Somera Series 10 (VSMH.72.AAA.05, 525–550W) review

Sun, 23 Aug 2026 00:00:00 GMT

A mature, monofacial Mono PERC module from an established Indian manufacturer — the datasheet itself flags some certifications as still "under progress."

Adani Solar Elan Shine TOPCon Series Gen-II (ASB-M10-144-AAA, 550–580W) review

Sun, 23 Aug 2026 00:00:00 GMT

A modern TOPCon module that lists BIS in its approvals — plus a wind/snow load rating that needs an engineer’s interpretation, not a headline-number comparison.

Waaree Solar Module Range review

Sat, 25 Jul 2026 00:00:00 GMT

India’s largest module maker — scale and bankability, across a very wide range.

Tata Power Solar Solar Module Range review

Sat, 25 Jul 2026 00:00:00 GMT

The premium, service-backed name — you pay for reassurance, and often get it.

Adani Solar Solar Module Range review

Sat, 25 Jul 2026 00:00:00 GMT

One of the few genuinely cell-to-module integrated Indian makers.

Sungrow String Inverter Range review

Sat, 25 Jul 2026 00:00:00 GMT

Global tier-1 string inverters — strong monitoring, growing India support.

Growatt String Inverter Range review

Sat, 25 Jul 2026 00:00:00 GMT

Popular value-oriented inverters — wide range, watch the local service.

Non-DCR Solar for Businesses: The 31 December 2026 Deadline

Fri, 24 Jul 2026 00:00:00 GMT

Commercial and industrial net-metering projects can use imported-cell panels only until 31 December 2026. From 2027, ALMM List-II applies.

PM Surya Ghar Subsidy: Why the March 2027 Deadline Changes Your Timeline

Wed, 22 Jul 2026 00:00:00 GMT

The ₹78,000 central subsidy is sanctioned only through FY 2026-27. Here is what the 31 March 2027 window means for when you should actually apply.

Accelerated Depreciation: The 40% Tax Lever Behind MSME Solar

Sat, 18 Jul 2026 00:00:00 GMT

A profitable business can write down 40% of a solar asset in year one. How accelerated depreciation reshapes commercial payback — and who can actually claim it.

Net Metering, Gross Metering & Net Billing: Which One Applies to You

Wed, 15 Jul 2026 00:00:00 GMT

The metering model your DISCOM offers decides how much your solar exports are actually worth. The three models, in plain language.

How to Read a Solar Quotation Without Getting Overcharged

Fri, 10 Jul 2026 00:00:00 GMT

Two quotes for “the same” 5 kW system can differ by ₹1 lakh. The line items that actually explain the gap — and the ones designed to hide it.

PM Surya Ghar Muft Bijli Yojana: The Complete 2026 Guide

Fri, 12 Jun 2026 00:00:00 GMT

How Indian homeowners can claim up to ₹78,000 in central subsidy for rooftop solar — eligibility, documents, the five-step process, and what makes claims fail.

Why Housing Societies Are Switching to 100+ kW Solar Plants

Thu, 28 May 2026 00:00:00 GMT

Common-area electricity is the second-largest expense for most societies. A 163 kW rooftop array changes that equation permanently.

Mono PERC Bifacial vs Standard Panels: What the 11% Gain Really Means

Sun, 10 May 2026 00:00:00 GMT

Bifacial modules harvest reflected light from their rear face. Here is when that translates into real generation — and when it does not.