Q1: How much solar capacity can be installed on my roof?
1 kWp of solar solar needs approximately 80 sq. ft of shadow free roof area. Actual capacity will be dependent on site conditions, shadows area, type of roof, and your home's load-bearing capacity.
Q2: How much electricity will the system generate per day, month, and year?
In India, approximately 4-5 units (kWh) of electricity are produced annually from a 1 kWp solar PV system. According to a national assessment by local solar energy and weather, it would mean about 120 - 150 units per month or 1,440 - 1,800 units per year.
Q3: What performance guarantee will the plant provide?
We guarantee generation performance in line with industry standards, specifically assuring 95% of the PV Syst simulation generation predicted by our site-specific PVsyst simulation report.
Q4: Which solar panels will you use? (Brand, wattage, efficiency)
We use government approved ALMM (Approved List of Models and Manufacturers) modules. Specific Tier 1 brands, wattages and efficiencies are determined by the design specifications and availability during project implementation.
Q5: Which inverter brand will you use, and what is its warranty?
We provide the best string or central inverter from different manufacturers in harmony with the plant size and system topology as per MNRE/ALMM guidelines. Standard manufacturer warranties apply, and are explained in the commercial agreement.
Q6: Have you conducted a shadow analysis?
Yes we do an extensive 3D shadow analysis with industry-standard software such as SketchUp and Solar Lab so that panels will be optimally positioned in the shadow-free areas of the structure for maximum energy production.
Q7: How much additional load will the system place on the roof? Will the structure remain safe?
The distributed dead-weight of a normal solar plant is around 15 to 20 kg per square meter. A detailed cross checking of structural stability prior to installation ensures that the roof will be able to withstand this added load.
Q8: How will roof waterproofing be maintained?
With RCC roofing, we have used non-penetrative ballasted structures or we select the anchor fasteners that are properly sealed. With metal roofs, they utilize module mounting systems with adhesive or module mounting systems with rivets with EPDM rubber washers to prevent any leakage loss of water.
Q9: What wind speed has the system been designed to withstand?
Q10: How will lightning protection and earthing be implemented?
A Lightning Arresters (LAs) system is installed for the whole plant protection angle. Our system includes separate, independent maintenance free chemical earthing pits for AC system, DC system and LA system (IS/IEC standards).
Q11: What fire safety measures are included?
The system is fitted with DC string fuses, Surge Protection Devices (SPDs), safe cable routing on our custom-made cable trays. Also we use fire-proof cables to reduce any risk.
Q12: How will the plant be monitored? Will a mobile application be provided?
The inverters are built-in with the data logger to be connected wirelessly by the Wi-Fi/LAN. You will get access to our Suryalog Cloud, a cloud-based web portal and mobile app to keep a real-time check on daily, monthly and yearly generation data.
Q13: What will be the total project cost?
Project costs are customized based on total plant capacity, roof conditions, component selections, and electrical infrastructure needs. A detailed breakdown is provided in your customized commercial proposal.
Q14: What is the cost per kWp?
The cost of per-kWp depends on the capacity of the plants, structural mounting options (ground-mount, mono rail, trapezoidal, tilt, etc.), and grid integration requirements.
Q15: What is the expected return on investment (ROI)?
Commercial and industrial (C&I) rooftopside solar power plants with a 25% to 40% annual ROI.
Q16: What is the estimated payback period?
The payback period for most commercial and industrial applications in India varies from 2.5 to 4 years, based on the net metering tariff in place and actual energy generation.
Q17: What are the expected annual savings?
The monetary savings per year are dependent on the generation profile of your site, the electricity tariffs offered by your DISCOM and the sanctioned electrical load. Savings estimates are available in the custom financial model included with your proposal.
Q18: Have you considered future electricity tariff escalation in your calculations?
Yes, we usually use a conservative tariff escalation grid (2-5% p/a) on our financial models which has an even better long-term ROI rate.
Q19: Is financing or a loan available?
Absolutely, we have both models CAPEX (Capital Expenditure) and OPEX (Operating Expenditure/RESCO) depending on your financial desires and budget.
Q20: Are EMI payment options available?
There are no EMI facilities available. Our payment system, however, is quite transparent and steps-based; payments are taken as percentages receiving them only in actual project progress.
Q21: What will the Annual Maintenance Contract (AMC) or O&M charges be?
O&M charges are customized depending on the plant capacity, site conditions, geographic location, and specific service scope requested by the client.
Q22: Are there any hidden costs or additional charges?
EPC costs are included in our proposal (end to end). All the statutory fees, such as that of Net Metering, for CEIG approval or for DISCOM liaison will be explicitly elaborated in the commercial offer.
Q23: What are the payment terms?
Payments are requested in transparent progressive percentages, based on project execution stages, a billing model based on milestones.
Q24: What is the project completion timeline?
The standard execution timeline is 45 to 90 days following formal drawing and engineering approvals, depending on plant capacity and site readiness.
Q25: Is there any penalty if the project is delayed?
CAPEX Projects: Liquidated damages or delay clauses are governed by mutually agreed terms within the final EPC contract.
OPEX Projects: Liquidated damages for installation delays do not apply; however, client progress payments not settled within 30 days are subject to an interest charge of 12% per annum.
Q26: What performance guarantees do you offer?
Q27: What is the warranty claim process?
All warranty claims are made directly with the Original Equipment Manufacturers (OEMs) by Sunkind. In the event of a failure of any component the user only contacts our O&M helpdesk and we take care of replacement the rest of the way.
Q28: Will spare parts be readily available?
Yes, we do have a stock of critical spares like fuses, MC4 connectors and some modules to allow for minimum plant downtime.
Q29: Will Net Metering be available for this project?
Net metering eligibility varies by state solar policy and (approved) electrical load of your facility. The feasibility check and application process will be managed directly with the local DISCOM.
Q30: Which is more suitable for my project: Open Access or Rooftop Solar?
A rooftop Solar is perfect to tap into the idle space and to achieve direct power offset. It may make more sense to opt for open access where you have a significant amount of energy needs but not enough roof space, and want to utilize renewable energy resources located away from your home.
Q31: Is any government subsidy applicable?
The government is not providing capital subsidies to commercial and industrial (C&I) rooftop plants at present. Still, there's a tax benefit you can obtain for your business which is known as Accelerated Depreciation (AD).
Q32: Who will handle DISCOM approvals?
Sunkind handles the complete, end-to-end DISCOM liaison process - from initial feasibility and net meter installation to final commissioning.
Q33: Is CEIG approval required?
Yes, systems over a certain capacity (50Kwp/ 100Kwp as per state was decided) and for HT connections need a CEIG approval letter. We handle this full approval procedure.
Q34: Will the project use ALMM or DCR-compliant solar panels?
Yes, we supply ALMM-approved (and DCR-compliant, where mandated) modules in strict compliance with MNRE guidelines.
Q35: How frequently will the solar panels be cleaned?
Cleaning of panels is performed twice a month (every 15 days). Cleaning schedules may be tailored to the conditions of the site, ambient dust levels and industrial fumes accumulation.
Q36: What is the response time in case of a system breakdown?
We adhere to a strict Service Level Agreement (SLA) for system maintenance and breakdown response:
Initial Response Time - 12 Hours
On-site Rectification (Without Spares/Replacements) - 24 Hours
Minor Replacement (Under O&M Scope) - 24 Hours
Equipment Purchase (Under Client Scope) - 48 Hours post commercial approval
Replacement of Inverter / Breakers / Major Cables - 12 Days
Module Performance Issue Resolution - 60 Days
Q37: What is the preventive maintenance schedule?
Inverter maintenance is regularly scheduled to be completed twice a year, or on a quarterly basis, and includes activities such as checking electrical connections, cleaning inverters and examining mounting structures.
Q38: Will I receive an annual generation performance report?
Yes, as part of our O&M services, we do cover monthly and annual performance reports in detail and include an actual vs. guaranteed report.
Q39: How will the performance guarantee be monitored?
The Performance Ratio (PR) is continuously monitored using the online SCADA or data logger portal, which carries out actual PR calculations using real time weather data and energy meter outputs.
Q40: What will be the duration of the O&M contract?
We offer initial O&M contracts ranging from a minimum of 1 year up to 5 years, with options for seamless renewal upon contract completion.
Q41: Will plant installation interrupt our production or operations?
Yes, installation is landscape oriented and will only affect your electrical panel room short term while integrating to the grid at the end. The final tie in will be done during non-working hours or on the weekend so as not to disrupt.
Q42: Will the installation cause any damage to the roof?
No. We take great care to maintain roof integrity by using dedicated walkways, proper material handling, and safe, non-penetrative (or tightly sealed) anchoring systems.
Q43: How much civil work will be required?
The Civil work is less and confined only to RCC waterproofing of roofs and earthing pits at the Ground.
Q44: What safety measures will be followed during installation?
We follow strict HSE (Health Safety and Environment) policy. Workers are provided with appropriate PPE (helmets and harnesses) and for roof safety lifelines/edge protection are used.
Q45: How many days will the installation take to complete?
Depending on the overall capacity and structural engineering scope, standard on-site physical installation takes 4 to 6 months.
Q46: How much electricity will the system generate during the rainy season?
During periods of heavy cloud cover or rain, generation naturally decreases, typically by 20% to 40% of the maximum feasible generation. Monsoon variations are already factored into our annual generation predictions.
Q47: What impact will cloudy weather have on generation?
Solar panels also can produce electricity when light is diffused (when clouds are in the way), although not as much as in direct sunlight.
Q48: What is the expected annual degradation of the solar panels?
Tier-1 solar modules have a degradation rate of 2% to 2.5% during the first year and about 0.5% to 0.55% each following year.
Q49: What output can be expected after 25 years?
At the end of 25 years, most Tier-1 panel manufacturers offer a guaranteed 80% to 84.8% of the module's rated output.
Q50: How many megawatts (MW) have you installed?
Sunkind has installed and in execution more than 450+ MWp of solar installations which has resulted in the production of more than 10.6 million units of clean energy and the avoidance of 1.7 million tonnes of CO2.
Q51: Can you show similar completed projects?
Yes, Sunkind has completed plenty of projects in all industries ranging from automotive, manufacturing, FMCG, steel and cement etc.
Q52: Can you provide references from existing clients?
Sunkind portfolio includes: Jindal Stainless, Honda, Hyundai, Godrej, ITC, Patanjali, Lupin, Bharat Forge, Tata AutoComp, Dr. Reddy's, Uflex, Shree Cement, Hindustan Zinc, JK Cement, ACC, Gujarat Ambuja Cement, Trident, Vardhman, Cosmo Films, LT Foods, Roop Auto, Jindal Steel & Power, Jindal Pipes, Motherson, Lakshmi Machine Works, etc.
Q53: How many years has your company been in business?
Established in 2019, Sunkind Energy has quickly emerged as the leading, trusted integrated clean energy solar EPC solution provider to commercial and industrial sectors in India.
Q54: Is your company financially stable?
Yes, Sunkind is financially strong and has successfully implemented huge scale C&I and Government solar projects, we have successfully achieved a revenue of 200+ crores in FY 2025-26.
Q55: Do you use an in-house team or subcontractors for project execution?
Yes, we have an experienced in-house engineering and execution team to guarantee strict adherence to quality control, safety standard operating procedures (SOPs) and delivery timelines.
Q56: If the roof develops a leak, who will be responsible?
Sunkind provides a 1-year Defect Liability Period (DLP) under our standard execution warranty to cover and rectify any waterproofing or structural defects arising directly from our installation work.
Q57: What happens in the event of a fire?
The protection system of the solar plant consists of several levels of electrical protection: fuses, breakers, and SPD.The protection system in the solar plant is designed in several layers: fuses, breakers, and SPDs. DC cables may be isolated if fire comes from an external source (otherwise, not likely). Normally fire is covered under standard plant insurance.
Q58: Will the project be covered by insurance?
Yes, all projects are covered by Erection All Risk (EAR) insurance during the construction and installation phase. Post-installation operational insurance is provided exclusively for OPEX projects.
Q59: How will the system perform during a cyclone or severe storm?
Structural elements of our module mounting are designed and analyzed for high wind and our site inspection team builds plans for solar EPC based on site soils and environmental conditions.
Q60: If any equipment fails, what is the replacement process?
You raise a ticket with our O&M team. We do the diagnosis, use spare parts from our stock to bring generation up quickly and get the warranty claim back to the manufacturer.
Q61: Will you provide a Single Line Diagram (SLD)?
Q62: Will you provide the layout drawing?
Q63: Will you provide a PVsyst generation simulation report?
Yes, as a standard part of our technical proposal.
Q64: Will you provide a structural stability certificate?
Yes, verified by a certified structural engineer.
Q65: Will you provide electrical safety certificates?
Yes, approved by the CEIG.
Q66: Will you provide as-built drawings?
Yes, provided at the time of project handover.
Q67: Will you provide the O&M Manual?
Yes, a comprehensive system operations and maintenance guide is provided.
Q68: What Specific Yield (kWh/kWp/year) can you guarantee?
Specific yield guarantees are provided at 95% of the baseline PVsyst simulation report customized for your site's solar irradiance and meteorological profile.
Q69: What Performance Ratio (PR) can you guarantee?
Performance Ratio (PR) commitments are aligned with standard industry practices and guaranteed at 70% - 85% of the simulated PVsyst design metrics.
Q70: What DC-to-AC ratio have you designed?
Q71: How have you determined the string sizing?
String sizing is programmed into the inverter software package and calculated through inverter voltage limit for MPPT's ensuring the string voltage scale is within the inverter specification limit during the lowest expected ambient temperature conditions.
Q72: What are the estimated cable losses?
Our plants are designed to achieve the maximum possible total system efficiency, with cable losses up to 1.5% for DC cable and less than 2% for AC cable.
Q73: What transformer losses have you considered?
The standard, no-load and load losses of step-up transformers which are usually < 1-2% are directly accounted for in the PVsyst simulation according to IS 1180.
Q74: What module mismatch losses have you accounted for?
For our energy simulations we generally assume a 1-2 per cent mismatch loss, and attempt to balance the mismatch in practice by performing accurate string sorting.
Q75: What is the temperature coefficient of the modules?
Module-Specific: Modern Mono PERC/TopCon modules typically range between -0.29% /°C and -0.34% /°C.
Q76: How will you mitigate PID, LID, and LeTID degradation?
We deploy advanced N-type or Gallium-doped modules with high-quality POE encapsulants from certified Tier-1 OEMs to inherently resist LID, LeTID, and PID at the material level. We implement robust system-level engineering, including optimized inverter grounding and active PID-recovery technologies, to safeguard your plant's long-term yield.
Q77: Do you provide SCADA-based monitoring or cloud-based monitoring?
Our systems are equipped with a standard cloud-based data logger monitoring. For larger utility or open-access plants full SCADA architecture is also available and offered.
Q78: Does the system support Reactive Power Control?
Yes, the smart grid-tied inverters we equip them can do complete reactive power compensation to comply with the local grid codes and power factor requirements.
Q79: Does the design comply with harmonic distortion standards?
Yes, our selected inverters maintain Total Harmonic Distortion (THD) safely under 3%, complying with IEEE 519 and CEA regulations.
Q80: Will you install Type I and Type II Surge Protection Devices (SPDs)?
Yes, many of the DC string combiners and AC distribution boards use Type II SPDs as standard equipment. If the building has an external lightning protection system or is located in a high-risk area, then Type I SPDs are used on the AC side.
Q81: Will the module mounting structure be made of galvanized steel (GI) or aluminum?
We employ our own-made mounting structures. Our mono rail, trapezoidal and tilt mounting options are perfect for rooftop installations. We use the best quality industry grade Aluminum or Hot-Dip Galvanized (GI) steel to construct all our structures.
Q82: What is the Hot-Dip Galvanization (HDG) coating thickness?
Sunkind HDG thickness for steel structures range between 80-120 micron.
Q83: Will installation follow the specified torque values for fasteners?
Absolutely. All of our installation crews use torque wrenches so they can read the proper torque function required by the specifications to guarantee long term structural integrity.
Q84: Which cable brands will be used?
Sunkind preferred Tier-1 reputed Brand as per clients orders
Q85: Which Balance of System (BOS) component brands will be used?
Sunkind preferred all reputed brands as per clients orders
Q86: Which IEC standards does the entire system comply with?
All major IEC standards are being followed, such as: IEC 61215/61730 (Modules), IEC 61683/62109 (Inverters) and IS/IEC 62305 (Lightning Protection).
