Solar panel installation cost in Kerala Switching to solar energy is becoming increasingly popular in Kerala, thanks to its environmental benefits and long-term savings. However, the cost of installation, subsidy availability, and overall worth can vary. In this blog, we will answer common questions and provide insights to help you decide whether solar power is the right choice for you. What is the Cost of Solar Panel Installation in Kerala? The cost of solar panel installation in Kerala largely depends on factors such as the system capacity, quality of panels, installation charges, and the type of inverter used. On average, the cost ranges from ₹45,000 to ₹60,000 per kW . Therefore, installing a 5kW solar system can cost between ₹2.25 lakh to ₹3 lakh . Breakdown of Costs: Solar Panels: ₹25,000 - ₹35,000 per kW Inverter: ₹15,000 - ₹25,000 per kW Installation and Maintenance: ₹5,000 - ₹10,000 per kW GRAB YOUR SUBSIDY NOW Is There a Subsidy for Solar Power in Kerala? Yes, the Kerala government provides subsidies for solar panel installations under various schemes. Residential and institutional consumers can avail of subsidies ranging from 30% to 40%  of the total installation cost. The subsidy is mainly offered under the MNRE (Ministry of New and Renewable Energy) schemes . How to Apply for a Solar Subsidy: Visit the official ANERT (Agency for Non-Conventional Energy and Rural Technology) website . Register for the subsidy program by filling out the application form. Submit the required documents, including proof of residence and system capacity. After verification, the subsidy amount will be credited to your account. How Many ACs Can Run on a 5kW Solar System? A 5kW solar system generates approximately 20-25 units per day , which is sufficient to run: 2 to 3 medium-sized air conditioners (1.5 tons)  for about 4-5 hours. 1 AC along with other household appliances  throughout the day. However, actual performance may vary depending on factors like panel efficiency, sunlight availability, and power consumption patterns. Is a Solar Panel Worth It in Kerala? Yes, installing solar panels in Kerala is generally worth it due to the state’s high solar insolation and increasing electricity costs. Considering the initial investment, the payback period is typically 4 to 6 years . After that, you can enjoy free electricity for the panel’s lifetime, which is usually around 25 years . Benefits of Solar Panels in Kerala: Reduction in Electricity Bills:  Substantial savings on monthly bills. Government Subsidies:  Reduces upfront investment. Environmental Impact:  Decreased carbon footprint and cleaner energy. Return on Investment:  Long-term savings outweigh initial costs. Final Thoughts Solar power is a sustainable and cost-effective solution for households and businesses in Kerala. While the initial investment might seem significant, the long-term savings and government subsidies make it worthwhile. To make an informed decision, calculate your energy needs and explore the available subsidy programs. For more insights on solar energy solutions in Kerala, stay tuned to our blog!

Best Solar Panels in Kerala: A Complete Guide to Choosing the Right One https://www.egenergytech.com/ - With the growing demand for renewable energy, solar power has become an excellent choice for homeowners and businesses in Kerala. The state's abundant sunlight and government incentives make solar energy a cost-effective and sustainable option. If you’re looking for the best solar panels in Kerala , this guide will help you make an informed decision. Why Choose Solar Panels in Kerala? Kerala is a prime location for solar energy due to its tropical climate and increasing electricity costs. Some key benefits of installing solar panels in Kerala  include: Reduction in electricity bills Government solar subsidies and incentives Environmentally friendly energy source Low maintenance and long lifespan Types of Solar Panels Available in Kerala When selecting solar panels for homes in Kerala , you need to consider the different types available: 1. Monocrystalline Solar Panels High efficiency (15-22%) Longer lifespan (25-30 years) Ideal for limited roof space 2. Polycrystalline Solar Panels Moderate efficiency (13-16%) Cost-effective option Suitable for larger rooftops 3. Thin-Film Solar Panels Lightweight and flexible Performs better in low-light conditions Lower efficiency compared to crystalline panels Factors to Consider Before Buying Solar Panels in Kerala To ensure you get the best solar power system in Kerala , consider the following factors: Efficiency  – Higher efficiency panels produce more electricity. Warranty and Durability  – Choose panels with at least 25 years of performance warranty. Solar Inverter Compatibility  – Ensure compatibility with a high-quality solar inverter. Government Subsidies  – Check for Kerala’s solar subsidy schemes  to reduce costs. Installation Services  – Opt for professional solar panel installation services in Kerala . Cost of Solar Panels in Kerala The cost of solar panels in Kerala  varies based on the type and capacity. On average: 1kW solar system : ₹50,000 - ₹70,000 3kW solar system : ₹1,50,000 - ₹2,10,000 5kW solar system : ₹2,50,000 - ₹3,50,000 Government incentives and net metering policies can further reduce the cost, making solar energy more affordable. Conclusion Investing in solar energy in Kerala  is a smart decision that offers financial and environmental benefits. Whether you need on-grid solar panels , off-grid solar systems , or solar rooftop solutions , choosing the right solar company in Kerala  ensures a seamless transition to clean energy. For the best deals on solar panels in Kerala , compare options, check subsidies, and select a trusted solar power company  for installation. Start your solar journey today and enjoy energy independence!

Free Solar Panel Scheme by Government of India – Everything You Need to Know The Indian government has taken a major step toward sustainable energy and energy independence with the introduction of the Free Solar Panel Scheme . As part of its commitment to clean energy and reducing electricity costs for citizens, this initiative aims to equip eligible households with solar panels at little to no cost. Here's a detailed look at what the scheme entails, who can benefit, and how to apply. What is the Free Solar Panel Scheme? Launched under the PM Surya Ghar: Muft Bijli Yojana , the Free Solar Panel Scheme is a government-sponsored program designed to promote the use of solar energy among residential households in India. It focuses primarily on low- and middle-income families, helping them reduce their electricity bills by generating free power from the sun. Under this scheme, the government provides 100% subsidy for solar panels  installed on rooftops, especially for those consuming up to 300 units of electricity per month. The goal is to install rooftop solar systems in 1 crore households  across the country. Key Benefits of the Scheme ✅ Free or Subsidized Solar Panels : Eligible beneficiaries get solar panels at no cost or with heavy subsidies. ✅ Up to 300 Units of Free Electricity : Households can receive up to 300 units of electricity per month for free. ✅ Lower Electricity Bills : Significant savings on monthly electricity expenses. ✅ Energy Independence : Reduced dependence on traditional electricity grids. ✅ Environment-Friendly : Promotes clean and green energy, reducing carbon footprint. Eligibility Criteria To benefit from the scheme, the following conditions generally apply: Indian citizen and resident of a home with a suitable rooftop. Monthly electricity usage within the prescribed limits (often below 300 units). Household should not already have a rooftop solar system. Priority may be given to economically weaker sections (EWS), lower-income groups (LIG), and farmers. Target and Budget The government has allocated over ₹75,000 crore  for this ambitious scheme. It aims to transform India's energy landscape by reducing grid dependency and empowering citizens with clean energy solutions. Final Thoughts The Free Solar Panel Scheme by the Government of India  is not just a relief for households dealing with rising power bills, but also a revolutionary step toward environmental sustainability. If you're eligible, this is the perfect opportunity to switch to renewable energy and enjoy long-term savings.

Contact - With the increasing demand for clean and renewable energy, solar power has emerged as a sustainable and cost-effective solution in Kerala. As a state blessed with abundant sunlight throughout the year, Kerala is witnessing a rapid shift towards solar energy adoption. This blog explores the benefits, installation process, and government incentives available for setting up a solar power plant in Kerala . Why Choose Solar Power in Kerala? Abundant Sunlight Kerala receives an average of 5-6 hours of peak sunlight daily, making it ideal for solar energy solutions in Kerala . Reduced Electricity Bills Installing a solar power plant significantly reduces dependency on grid electricity, leading to lower monthly electricity costs. Eco-Friendly Energy Source Solar energy is a clean and green alternative that reduces carbon footprints and helps combat climate change. Government Incentives & Subsidies The Kerala State Electricity Board (KSEB) and the central government offer attractive subsidies and incentives to promote solar energy adoption. Energy Independence By generating your own electricity, you can ensure a reliable power supply, especially in rural areas with frequent outages. Types of Solar Power Plants On-Grid Solar Power Plants Connected to the grid, these systems allow users to sell excess power back to the utility, making it a profitable investment. On-grid solar system Kerala  setups are gaining popularity due to net metering benefits. Off-Grid Solar Power Plants Ideal for remote locations, off-grid systems use battery storage to provide power during nighttime or cloudy days. Hybrid Solar Power Systems A combination of on-grid and off-grid systems, hybrid solar plants provide backup power and maximize energy efficiency. Installation Process for a Solar Power Plant Site Assessment  – Analyze the location, sunlight exposure, and energy requirements. System Design  – Select the right type and capacity of solar panels, inverters, and battery storage (if needed). Government Approvals & Subsidies  – Apply for necessary permits and take advantage of available incentives. Installation & Grid Connection  – Set up the solar panels, connect them to the inverter, and integrate them with the grid or battery system. Maintenance & Monitoring  – Regular cleaning and maintenance ensure the efficiency and longevity of the solar plant. Government Subsidies and Incentives The Ministry of New and Renewable Energy (MNRE)  offers up to 40% subsidy  for residential rooftop solar installations. KSEB’s Soura Subsidy Scheme  promotes solar adoption with incentives and net metering benefits. Tax Benefits & Loans  – Businesses can avail of accelerated depreciation benefits, and homeowners can access low-interest loans for solar installations. Cost and Return on Investment The cost of setting up a 1kW solar power plant  in Kerala ranges between ₹50,000 to ₹70,000, depending on the type and quality of equipment used. A 5kW solar plant  can power an average household and provide significant savings on electricity bills. With on-grid solar system Kerala  solutions, excess electricity can be sold back to the grid, ensuring a return on investment within 5-7 years. Conclusion Investing in a solar power plant in Kerala  is a smart and sustainable choice for homeowners and businesses alike. With government incentives, decreasing installation costs, and increasing electricity rates, now is the perfect time to switch to solar energy solutions in Kerala . Whether you opt for an on-grid, off-grid, or hybrid system, harnessing solar power ensures long-term benefits for both the environment and your finances.

Understanding the Cost of a 5 kW Solar Power Plant in Kerala -   Contact As solar energy gains popularity across India, many homeowners and businesses in Kerala are opting for solar power to reduce electricity bills and promote sustainability. A 5 kW solar power plant is an ideal solution for medium-sized homes or small businesses. If you're considering installing a 5 kW solar system in Kerala, it's crucial to understand the costs involved, including equipment, installation, and government subsidies. Cost Breakdown of a 5 kW Solar Power Plant in Kerala The cost of a 5 kW solar power plant in Kerala varies depending on the quality of components, installation charges, and additional features. Here is a general breakdown: Solar Panels : INR 1,40,000 – INR 1,75,000 Inverter : INR 55,000 – INR 80,000 Mounting Structure : INR 25,000 – INR 40,000 Wiring & Other Accessories : INR 20,000 – INR 30,000 Installation Charges : INR 25,000 – INR 40,000 If you're searching for the 5 kW solar panel price in Kerala , these figures provide a clear estimate of the investment required. Total Estimated Cost The total cost of a 5 kW on-grid solar power plant in Kerala typically ranges between INR 2,65,000 and INR 3,65,000  before applying subsidies. This on-grid solar system cost in Kerala  can vary based on the quality of components and service providers. Government Subsidies for Solar Power in Kerala The Indian government, under the PM Surya Ghar Muft Bijli Yojana, offers subsidies to encourage solar adoption. For residential installations, the subsidy can reduce the cost significantly: 40% subsidy  for systems up to 3 kW 20% subsidy  for the remaining capacity between 3 kW and 10 kW For a 5 kW system, you can expect to receive a subsidy of approximately INR 78,000 to INR 90,000 , bringing the net cost to INR 1,85,000 to INR 2,85,000 . Return on Investment (ROI) A 5 kW solar power plant can generate approximately 20-25 units per day , saving you around INR 3,500 – INR 5,000 per month  on electricity bills. Over 5-6 years, the system typically pays for itself, while the panels last for 25 years  with minimal maintenance. Why Choose Solar Power in Kerala? Reduced Electricity Costs : Significant savings on power bills. Eco-Friendly : Lowers carbon footprint and promotes renewable energy. Government Support : Attractive subsidies to reduce upfront costs. Conclusion Investing in a 5 kW solar power plant  in Kerala is a smart financial and environmental decision. With government subsidies and long-term energy savings, you can enjoy clean, cost-effective electricity for decades. Consult with a certified solar installer in Kerala to get accurate quotes and start your solar journey today!

How Does Solar Power Work? -   Contact In today’s world, renewable energy is becoming increasingly important, and solar power is at the forefront of this energy revolution. But how does solar power work? Understanding the science behind solar energy can help you make informed decisions about using this clean and sustainable power source. What Is Solar Power? Solar power is energy harnessed from the sun and converted into electricity or heat. It is a renewable and sustainable energy source that reduces our dependence on fossil fuels and minimizes environmental impact. The process of converting sunlight into usable energy relies on advanced technology and scientific principles. How Do Solar Panels Work? The key to solar power lies in solar panels , which capture sunlight and convert it into electricity. Here’s a step-by-step breakdown of how this solar energy process  works: Sunlight Absorption:  Solar panels are made up of photovoltaic (PV) cells . When sunlight hits these cells, it knocks electrons loose from atoms, generating an electric current. Electric Current Generation:  This flow of electrons creates direct current (DC) electricity . However, most homes and businesses use alternating current (AC) electricity , which is why an inverter  is used to convert DC into AC. Energy Distribution:  The converted AC electricity is then used to power your home or business. Any excess energy can be stored in batteries  or sent back to the power grid  through net metering systems. Solar Panel Working Principle The solar panel working principle  is based on the photovoltaic effect , where sunlight generates an electric charge in semiconductor materials. This charge is captured and transformed into usable electrical energy through a systematic conversion process. Advances in PV technology have made solar panels more efficient and affordable for widespread use. Types of Solar Power Systems On-Grid Systems:  Connected to the local power grid. Excess energy is sent to the grid, and you can draw power from it when needed. Off-Grid Systems:  Standalone systems that store energy in batteries. Ideal for remote locations without grid access. Hybrid Systems:  Combine both on-grid and off-grid features, providing flexibility and energy storage options. Benefits of Solar Power Renewable and Sustainable:  Solar energy is abundant and will never run out. Cost Savings:  Reduce or eliminate electricity bills through solar energy. Environmental Impact:  Solar power reduces carbon emissions and reliance on fossil fuels. Energy Independence:  Decrease dependence on traditional energy sources. Is Solar Power Right for You? If you have access to ample sunlight and want to reduce your energy costs, solar power can be a smart investment. Consider factors such as roof space, local climate, and available incentives before making the switch. Conclusion Solar power is a clean, renewable energy source that harnesses sunlight to generate electricity. By understanding how solar panels work and the benefits they offer, you can decide if this sustainable technology is right for your home or business. Embracing solar power is not just a smart financial choice—it's a step toward a greener future.

Solar energy is revolutionizing the energy landscape across the world, and Kerala is no exception. Known for its natural beauty and environmental consciousness, Kerala is embracing solar energy as a clean and sustainable power source. Solar Energy is Gaining Popularity in Kerala -   Contact Kerala has abundant sunlight, with over 300 sunny days a year, making it an ideal location for harnessing solar energy. The increasing cost of electricity, coupled with growing environmental awareness, has encouraged individuals, businesses, and the government to explore solar power solutions. Benefits of Solar Energy in Kerala Cost Savings : Solar energy significantly reduces electricity bills for households and businesses. Once installed, the maintenance costs are minimal. Environmentally Friendly : Solar power helps reduce the carbon footprint by providing clean energy without greenhouse gas emissions. Energy Independence : By adopting solar energy, Kerala can reduce its dependency on fossil fuels and imported electricity. Government Incentives : The Kerala government offers various subsidies and incentives to promote solar energy adoption. Government Initiatives to Promote Solar Energy The state government, through the Agency for New and Renewable Energy Research and Technology (ANERT) , is spearheading initiatives to encourage solar installations. Key programs include: Solar Rooftop Subsidies : Financial support for homeowners and businesses to install solar panels. Solar Farming Projects : Opportunities for farmers to utilize unused land for solar farming. PM Kusum Yojana : Aimed at providing solar pumps to farmers to reduce irrigation costs. Popular Solar Solutions in Kerala Kerala offers various solar solutions to meet different needs: 1. On-Grid Solar Systems These systems are connected to the local electricity grid, allowing users to feed excess energy back to the grid and earn credits. 2. Off-Grid Solar Systems Ideal for remote areas, off-grid systems store energy in batteries and provide power even during grid outages. 3. Solar Water Heaters Widely used in Kerala, solar water heaters are a cost-effective solution for hot water needs in homes and hotels. Future of Solar Energy in Kerala The future of solar energy in Kerala looks promising, with increasing investments in renewable energy and government policies aimed at sustainability. Initiatives like solar parks, microgrids, and smart city projects will further boost solar adoption in the state. Conclusion Solar energy is not just a solution to Kerala’s growing energy needs but also a step towards a greener and more sustainable future. By leveraging its natural resources and government support, Kerala can emerge as a leader in renewable energy.

All About Solar Rooftop Installations In Your Home. An interview with Mr. C M Varughese, CEO Evergreen Energy Technologies | Malayalam

Solar Inverter –An overlook A solar Inverter is the core unit in a solar power system where the DC power from Solar PV is converted to AC power of standard voltage and frequency . Mainly three categories of Solar Inverters- OFF Grid Inverter ,Grid Tie Inverter and Hybrid Inverter are available . Off Grid INVERTER : The PV supply pass through a charge controller –PWM  type with MPPT algorithm to derive maximum power from the PV .The charge controller limit the charging voltage to safe value . The Inverter is a normal inverter where Sinusoidal PWM switching technology is used to derive Sinusoidal output with least THDv and perfect regulation .The inverter switching by Mosfets or IGBTs depending battery voltage and Inverter rating . The loading on inverter be selected to cater the surge rating and over load rating .Inverter being an equipment switched through  semiconductors the surge rating is limited to 150-200% generally . As the loading on an Off Grid inverter varies 5% to 30% of rating ,to discharge the energy over 16-18 hrs in a day  by storage of  4kWHr/Kw of PV  in 4-6 hrs ,it is import the low load efficiency be high rather than full load efficiency to be high . Solar Battery : Unlike the battery discharge in Home UPS or IT UPS where back up need to be ½ hr to 2 hrs and again in an unlikely event of mains failures only ,here for Solar Power System the solar battery need to charge and discharge every day and 365 days an year .So ideal to keep depth of discharge for 50% on lead acid batteries . The end cell voltage shall be decided based on 16 hr discharge at 50% DOD and shall be >1.9V cell for longer life . And load shall be re-transferred to inverter on charging >80-8%% of battery ,say 2.25V/cell. It is ideal to have auto transfer to mains supply on inverter trip ,but charging from mains shall be inhibited and shall have an option to charge from mains on an unlikely event of full depth discharge during rainy season . The PCU ,PVs must be protected against lightning through lightning arrestor ,against surges by SPDs .PVs are Isolated through DC MCBs/MCCBs .The PVs ,Lightning arrestor and PCUs are earthed as per IS 3043 . The PVs shall be type tested for IEC 61215 –design qualification and type approval ,IEC 61730-1,2 for electrical ,mechanical and operational safety requirements . PCU (Inverter +charge controller ) shall be type tested for IEC 61683 for performance and efficiency ,IEC 60068 -12,13,30 for Environmental protection . The battery shall be type tested for IS 1651 –Capacity test and endurance test . Grid Tie Inverter : Grid Tie Inverter (GTI)is again and Inverter converting DC power from PVs to AC  and transferring same to Grid or internally consumed in conjunction with Grid .It is always tied to grid and that is why Grid Tied Inverter . unlike normal inverter or UPS inverter where is a voltage source inverter a GTI is a current source inverter and cannot stand itself its own to support the load .It is controlled by Grid –voltage ,frequency and phase angle as well as load  sharing . The THDi of the GTI shall be limited <5% and shall have a frequency window 48-50.5Hz and voltage 180-250V L-N . The GTI controls each phase independently but get isolated on any of the phase deviates . The Ant Islanding protection of GTI is of paramount important as on a GTI working as an island can damage the electrical equipments  connected as the voltage or frequency is not self corrected to standard value . The GTI is protected against Anti islanding through Passive protections –U/O voltage U/O frequency ,Dv/dt ,Df/dt ,THDietc beyond the allowed range in addition active protection by frequency drift mechanism . On an Grid failure by cable cut or isolation etc on an unlikely event of the GTIs capacity (single or multiple GTIs) shall be prevented to act as an island ,here the frequency drift mechanism acts upon if the passive protections fail and GTIs got tripped with 2 Second of grid failure . The GTI  shall be type tested for IEC 61683 for performance and efficiency ,IEC 60068 -12,13,30 for Environmental IEC 62116 for anti islanding IEC 61727 for Utility interface and IEC 62109-1 for Safety . GTIs are generally not galvanically isolated and share the mains neutral for sensing etc ,this neutral do not carry any load . The GTIs are working on a DC bus voltage rather than  PV voltage to get MPPT level by MPPT algorithm embedded in the controller .For lower Kva rating the PV DC is boosted to reach +400-0-400V bus and higher kVAs no need to boost . For large KVAs more number of  GTIs shall be parralleled as String inverters and above 1000KVA generally go for a Central inverter where one inverter alone supply this load . The central inverter can be connected to MV transformer LV side and power directly transferred to 11Kv . Hybrid Inverter : A grid interactive solar inverter which has battery storage. It can work as OFF GRID at same as Grid tied too on excess power to transport to grid The introduction of hybrid solar systems has opened up for many interesting innovations. New inverters let homeowners take advantage of changes in the utility electricity rates throughout the day. Solar panels happen to output the most electrical power at noon – not long before the price of electricity peaks. Your home and electrical vehicle can be programmed to consume power during off-peak hours (or from your solar panels). Consequently, you can temporarily store whatever excess electricity your solar panels in batteries, and put it on the utility grid when you are paid the most for every kWh. Smart solar holds a lot of promise. The concept will become increasingly important as we transition towards the smart grid in the coming years. What is a Micro-Inverter? A micro-inverter converts power at the solar panel from DC electricity to 240v AC electricity and is attached to each panel in a solar system. As opposed to a conventional string inverter which is connected to a series or “string” of solar panels and converts the power from Direct Current (DC) in to Alternate Current (AC) electricity , for the solar system as a whole. When a system owner switches off the circuit breaker in the main switchboard of a house or business, a micro inverter no longer sees mains power and it automatically switches off. However the DC Voltage between the panels and the inverter is still live. In the case of a micro inverter, the Voltage is only 50V DC – Extra Low Voltage. In the case of a conventional inverter, when the circuit breaker in the switchboard is switched off, there is still 1,000V DC being generated in the live DC cable between the panels and the inverter. This cable is still live and just as dangerous as when the circuit breaker is switched on. A low DC system Voltage also means the risk of Potential Induced Degradation is mitigated. STRING INVERTERS : Typically several panels put in series to connect a single inverter to increase capacity of System and several such inverters can be connected to GRID in parallel .Rating 1-150Kw generally .for 1000KW System 10 nos 100Kw connected in parallel . Central Inverter : A single large inverter of 250KW or more ,available up to 5 Mw now .Functionally same of string inverter but generally connected to MV through a transformer Compiled by : C M Varughese

Solar Power Systems – Facts to be known : Solar PV System generate 4kWHr DC Power (4 units )/Kw average per day at PV end in Kerala .On conversion to AC the yield is 3 to 3.5 units per day .Average 100 units per months per Kw ,on higher kWs yield increases proportionally . Space requirements- 100 sq.ft per Kw and increases proportionally as Kw increases .Space should be south oriented in Kerala ,without shade . Standard mounting on flat roof at 10-11 deg centigrade south oriented , Possible to mount on inclined roof ,tiled roof as well as sheet roof ,also above car porch and ground mounted . Type and Selection of Solar PV Systems - Off Grid (with battery ) : Useful for areas where mains failures and fluctuations are frequent .Battery per Kw 4x150AH C10 Tubular for residential and 2x150AH for office ,day time use . Load be distributed to contain PCU rating and PV generation ,say 3-3.5 units per Kw . Priority load shall be Lights,Fans ,TV etc . PCU (Solar Inverter ) rating 1Kva o.k if the Fridge-285L/DL is inverter type ,other wise 2Kw may be needed . For AC ,1.5T AC of inverter type can be connected on 3Kva PCU ,other type AC of 1.5T may need 6/7.5 Kva PCU . 1.5 T AC ,average energy consumption 8Hrs may be 8 units . On maximum energy conservation and Energy Efficiency exercise only go for Solar ,limit 80% of energy consumption on solar and balance on Mains on an average . Avoid connecting high surge loads (low duration running ) like motors on Solar if possible . Advantage OFF GRID-Give a steady , stable ,Clean power 24Hrs (depending connected load rating ) Type and Selection of Solar PV Systems - Grid Connected Good for mains stable steady Just generate energy and get bill reduced through Net metering Power Quality same as mains Good for large commercial complexes ,Hospitals ,Institutions etc where own substation available with less fluctuations and failures . Pricing at an average : Off Grid 1Kw-10Kw with 4x150AH C10 battery/Kw –Rs.1.3 to 1.5L /Kw depending BOQ and higher kWs price increases almost proportionally as Battery and PVs Nos increase straight up which are major price part of the systems . On Grid -1-5Kw Rs.90k to Rs.3.5L ,5-10KW Rs.3.5L to Rs.6.5 L .Per W price reduces as rating goes up . Above prices for standard items and may vary depending change in roofing ,cable length etc Maintenance – Cleaning the PVs once in a month with clean water a must , birds drops shall be cleared as soon as located . Battery top up shall be checked once in 6 months . Take readings of the system from the display once in a month-W ,kWHr ,AC voltage , Load % ,Frequency ,Battery Voltage ,charging current , PV Current etc during sunny hrs as well as during night peak . Life of Solar PVs aprox 25 Years ,Battery 7-8 Years and PCU 15 Years on right selection ,usage and maintenance . Pls be reminded battery life is number of charge discharge cycles with ref to depth of discharge ,for above application and life solar batteries are designed for 50% depth of discharge . Solar PVs – Mono crystalline and Polycrystalline PVs are generally used and Mono is having 1.5% conversion efficiency over Poly but price almost 5% more .But yield for a particular Wp panel same irrespective of Mono or Poly ,difference is mono need little space less for mounting and so advantageous on large plants by space . MPPT Charge controller yield average 20% energy more over PWM charger and available as inbuilt with PCUs ,shall not be there for single battery single PV system . As solar Off Grid systems generally work at 20-30% load normally the efficiency at low load is important than full load . BOS –Balance of Systems ,even though cost share small BOS important to keep the system protected ,keep system running without failures . Mounting structure shall be GI for long life without rusting . Cable sizes shall be for <3% drop in PV side and shall be UV protected . SPD (Surge protection device ),shall be used in SPV System DC MCB for PV isolation shall be used Earthing shall be done as per standard And Lightening arrestors shall be used as part of SPV systems Net Metering and Connectivity : Net Meter Available from EB on rent and shall be replaced for standard meter on Grid connected PV system and Grid connectivity on Inspection and approval by KSEB and Inspectorate . Up to 10Kw only KSEB inspection. Rs.1000 for for feasibility study and Rs.1000 per Kw on Grid connection fee as of now Generation based incentive Rs.1.0 /unit available for OFF Grid System from KSEB . Energy Conservation -the habit by which we reduce energy consumption by reducing consumption: ELCB must for all electrical circuits Keeping lights and fans off on not in use Use lower rated lamps or reducing light intensity etc as required Switch off standby devices not in use Energy Efficiency ,using equipments and devices of higher efficiency : Fluorescent tubes and CFL bulbs be replaced with LED tubes and LED bulbs of 50% power rating keeping the lux same. Replace old fans with BLDC fans Replace old Fridges and ACs with 5 Star rated Fridges and ACs Replace the Motors with energy efficient motors . Compiled by : C M Varughese