Solar PV Module
550W Solar Panel
Suited to residential rooftops and small commercial installations where roof area is limited. Supplied with mounting-compatible frame profiles for standard MMS structures.
Solar Power Solutions
Precision Earthing for
Solar Power Plants
Comprehensive IS 3043 and IEC 62305 compliant earthing, grounding, and lightning protection systems engineered for ground-mounted solar farms and rooftop solar installations — protecting your assets, people, and energy yield.
IS 3043 & IEC 62305 Design
Ground-Mounted & Rooftop Solar
Engineering to Commissioning
CEA & Lender-Ready Documentation
IS 3043 Compliant
IEC 62305 Certified
CEA Regulation Ready
Complete Earthing Design
Engineering Support
Rooftop & Ground-Mounted Solar
Why It Matters
Why Earthing is Critical
for Solar Plants
Solar installations operate under unique electrical and environmental conditions that demand a robust, professionally engineered earthing system — not an afterthought.
DC Arc Flash & Ground Fault Protection
Solar arrays generate high-voltage DC current. Without proper earthing, ground faults cause sustained DC arc flashes that are far more dangerous than AC faults, risking catastrophic equipment failure and fire.
Inverter & Equipment Longevity
Transient overvoltages and stray currents degrade power electronics, inverters, and monitoring systems over time. Proper earthing dissipates these surges before they cause cumulative damage, directly protecting ROI.
Personnel Safety & CEA Compliance
Central Electricity Authority (CEA) regulations mandate effective earthing at solar installations. Proper systems protect O&M staff from touch and step potential hazards — and keep projects compliant during audits.
Lightning Strike Dissipation
Large open-field solar farms are highly exposed to direct and indirect lightning strikes. A properly bonded earthing network provides a low-impedance path that safely dissipates lightning energy away from PV modules and inverters.
Ground-Mounted Solar
Ground Mounted
Solar Solutions
Large-scale ground-mounted solar power plants spanning hectares require a rigorously engineered earthing network. Konnark designs perimeter and grid earthing systems that achieve low soil resistance across variable terrain, rocky strata, and high soil-resistivity zones common in Rajasthan, Gujarat, and the Deccan plateau.
Key Applications
What We Provide
Perimeter and grid earthing network design with IS 3043 mesh calculations
Copper bonded earthing electrodes for low corrosion in aggressive soils
Backfill compound treatment for high-resistivity soils
DC and AC equipment bonding — inverters, transformers, MMS structures
ESE lightning arrester placement with IEC 62305 risk assessment
Surge protection devices (SPDs) at string inverters and combiner boxes
Earth resistance testing and commissioning documentation
Rooftop Solar
Rooftop Solar
Solutions
Rooftop solar installations on industrial sheds, commercial buildings, and residential complexes present unique earthing challenges — existing building earthing may be insufficient, and module mounting structures must be safely bonded to prevent stray voltages. Konnark engineers rooftop-specific systems that integrate seamlessly with existing building earthing without compromising structural integrity.
Key Applications
What We Provide
Building integration earthing — bonding MMS to existing building earth
GI or copper bonded electrodes for rooftop earth pits
Equipotential bonding across all module frames and rails
Lightning protection air termination network for roof surfaces
SPDs at grid-tie inverter inputs and distribution panels
Earth pit covers with inspection windows for periodic testing
Load-bearing earthing conductor routing without roof penetration
Solar PV Modules
Solar PV Module Supply
550W · 680W · 725W
Konnark sources and supplies solar PV modules across the 550W, 680W, and 725W range for residential, commercial, and industrial projects — supplied and coordinated alongside our earthing, grounding, and lightning protection scope so every installation is electrically safe from the first day of commissioning.
Solar PV Module
680W Solar Panel
A balanced choice for commercial rooftops and C&I installations, offering higher yield per module footprint for both rooftop and ground-mounted layouts.
Solar PV Module
725W Solar Panel
High-wattage modules for utility-scale, ground-mounted solar farms and large industrial rooftops, where fewer modules per MW reduce mounting structure and earthing conductor length.
Our Product Range
Recommended Products
for Solar Applications
Every product in our solar earthing portfolio is tested to relevant IS and IEC standards, rated for extended outdoor service life, and backed by our technical team.
Earthing Electrodes
Copper Bonded Earthing Electrode
High-conductivity copper-bonded steel electrode with 99.9% pure copper cladding. Offers superior corrosion resistance in the chemically aggressive soils found across solar farm regions. Ideal for achieving sub-1 Ω earth resistance.
Earthing Electrodes
GI Earthing Electrode
Hot-dip galvanised steel earthing electrode providing a cost-effective solution for rooftop solar and smaller C&I installations. Suitable for moderate soil corrosivity environments with periodic inspection protocols.
Chemical Compounds
Backfill Compound
Non-corrosive, moisture-retentive bentonite-based backfill compound that dramatically reduces soil resistivity around earthing electrodes. Critical for solar sites in rocky, sandy, or laterite soil conditions prevalent in peninsular India.
Accessories
Earth Pit Chamber
Heavy-duty FRP and CI earth pit chambers designed for solar plant environments. UV-resistant, load-rated for vehicular traffic between rows, and marked for quick O&M identification. Includes an inspection window for resistance testing without chamber removal.
Lightning Protection
ESE Lightning Arrester
Early Streamer Emission (ESE) air terminal with up to 107m protection radius per NF C 17-102 / UNE 21186. A single ESE unit can protect multiple inverter stations and module fields, significantly reducing the number of conventional air terminals required.
Accessories
Earthing Kit
Complete earthing kit supplied with electrode, backfill compound, earth pit chamber, and bonding hardware — everything required for a single earth pit installation at a solar plant, ready for quick deployment.
Services
Earth Pit Testing Service
On-site earth resistance measurement using calibrated fall-of-potential and clamp-on test methods. Includes documented test report with readings, compliance status, and recommendations — suitable for CEA audits and lender inspections.
Lightning Protection
Lightning Strike Counter
Down-conductor mounted event counter that logs each lightning discharge conducted to earth through the ESE air terminal, giving O&M teams a verifiable record for insurance claims and inspection compliance.
Solar Accessories
Solar ACDB
AC distribution board for grid-tie inverter output, housing MCBs, AC SPDs, and metering interfaces. Panels are supplied pre-wired and earthed to the plant's protective earthing network for straightforward commissioning.
Solar Accessories
Solar DCDB
DC combiner and distribution board for string inverter inputs, fitted with DC fuses, isolators, and Type 2 DC SPDs. Bonded to the earthing network to protect against DC-side ground faults and lightning-induced surges.
Solar Accessories
MC4 Connector
IP67-rated weatherproof DC connectors for module strings, rated for outdoor solar duty and reliable low-resistance connections. Supplied along with the module cabling scope for both rooftop and ground-mounted projects.
Solar Accessories
Net Meter
Bi-directional net metering solution supplied and coordinated with your DISCOM connectivity requirements, supporting accurate import-export measurement for grid-tied rooftop and ground-mounted solar plants.
Our Methodology
Installation Process
Step by Step
From initial soil testing to final commissioning, Konnark follows a rigorous, documentation-backed process that ensures your solar earthing system meets all regulatory and performance requirements from day one.
Site Survey & Soil Testing
Wenner 4-pin soil resistivity testing across the entire plant footprint. Depth-wise analysis identifies resistivity variations and informs electrode selection, depth, and treatment requirements.
System Design & Engineering
IS 3043 earthing network design with mesh calculations, touch and step potential analysis, lightning risk assessment per IEC 62305 Part 2, and SPD coordination study for all DC and AC circuits.
Material Procurement & QC
All electrodes, conductors, clamps, and SPDs are inspected and batch-tested against IS/IEC specifications before dispatch to site. Material test certificates are included in the project documentation package.
Electrode Installation & Backfill
Electrodes are driven or bored to design depth. Backfill compound is applied in layers and compacted with water treatment. Earth pits are constructed with covers, inspection facility, and conductor lugs.
Bonding & Network Connection
Earthing conductors are routed along cable trays and module structure to bond all MMS, inverters, transformers, and control panels to the earthing network using exothermic welding or listed mechanical connectors.
Testing, Commissioning & Handover
Earth resistance measured at all pits using Fall-of-Potential method. Continuity tests across the entire network. Test reports, as-built drawings, material certificates, and maintenance schedule are delivered at handover.
Regulatory Framework
Standards &
Compliance
All Konnark solar earthing systems are designed and installed in accordance with the following Indian and international standards, ensuring insurability and regulatory clearance.
IS 3043:2018
Code of Practice for Earthing — the primary Indian standard governing earthing system design, material selection, and installation methodology for all electrical systems including solar.
IEC 62305 (Parts 1–4)
International standard for Protection Against Lightning — covering risk management, physical damage, and protection of electrical and electronic systems against lightning electromagnetic impulse.
CEA (T&S) Regulations 2010
Central Electricity Authority Technical Standards for connectivity of distributed generation resources (including solar PV plants) to the grid, mandating effective protective earthing systems.
IEC 61643-11 / 61643-31
Low-voltage surge protective devices for AC (61643-11) and DC (61643-31) power installations — governing SPD selection, testing, and performance for PV string inverters and combiner boxes.
NF C 17-102 / UNE 21186
French and Spanish standards governing the design and testing of Early Streamer Emission (ESE) lightning arresters, widely referenced for ESE system approval across Indian solar projects.
MNRE / SECI EPC Guidelines
Ministry of New and Renewable Energy and Solar Energy Corporation of India EPC specifications require compliant earthing and lightning protection as a condition of commissioning approval for utility-scale projects.
Common Questions
Frequently Asked
Questions
IS 3043 recommends an earth resistance of 1 Ω or less for power systems, and most EPC specifications for solar plants follow this threshold. For individual equipment (inverters, transformers), a maximum of 5 Ω is typically acceptable, but the grid earthing network must achieve ≤1 Ω. In high soil resistivity zones, chemical backfill and deep bore electrodes help achieve this.
Existing building earthing may be used if it meets the resistance requirements and is in good condition. However, we always verify resistance before relying on it. For large rooftop installations (above 100 kWp), additional dedicated earth pits are usually required to handle fault current levels and to maintain the network even if the building earthing requires maintenance. We provide a combined assessment and recommend the most economical compliant approach.
An ESE air terminal emits a stepped leader that intercepts the lightning strike and diverts current safely to earth via a dedicated down conductor, bypassing the PV field entirely. One ESE unit with a 60m protection radius can protect approximately 1.1 hectares under Level IV risk criteria per NF C 17-102. The number required depends on plant size, module height, and risk level — our team performs a proper IEC 62305-2 risk assessment to determine the optimal placement.
Yes. CEA regulations and IS 3043 require all metallic structures in electrical installations to be bonded to the earthing network. MMS structures must be connected at intervals — typically every 3rd to 5th column — using tinned copper conductors and clamps. This prevents step potential hazards during lightning events and protects against stray DC currents that could cause galvanic corrosion on aluminium MMS structures.
IS 3043 recommends annual testing of earth resistance. For solar plants under SECI/NTPC O&M contracts, six-monthly testing is common practice, with additional testing after any significant lightning event. Konnark provides O&M support services including periodic earth resistance measurement, visual inspection of conductors and clamps, and re-treatment of backfill compound if resistance drifts above the permitted threshold.
At string inverters, IEC 61643-31 compliant Type 2 DC SPDs are standard — rated for the maximum PV open-circuit voltage (typically 1000V DC or 1500V DC systems). For sites with lightning risk or long cable runs from combiner boxes, Type 1+2 combination devices are recommended at the first point of DC entry. On the AC output side of the inverter, Type 2 AC SPDs per IEC 61643-11 provide protection at the distribution panel.
Yes. Konnark provides a complete documentation package at project close-out: IS 3043 design calculations, AutoCAD layout drawings (earthing and lightning protection), soil resistivity test reports, material test certificates, earth resistance commissioning reports, and an as-built drawing set. This package meets the requirements of CEA inspectors, lender technical advisors (LTAs), and independent engineers for financial close on project finance transactions.
Start Your Project
Protect Your Solar Investment
From Day One
Share your solar plant capacity, location, and soil type with our engineering team. We'll provide a compliant earthing and lightning protection system design with material specifications, installation scope, and a project timeline.
Sr No 134, Dalviwadi, Nanded Phata, 1068, Sinhgad Rd, Dalve Wadi, Pune, Maharashtra 411041
Phone: +91 89830 38336
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Email: konnarkearthing@gmail.com