Saturday, 6 December 2025

HT cable management is essential to mitigate these risks.

 

HT cable management is essential to mitigate these risks. 

Safety and Hazards Points

Hazards

Electric Shock and Electrocution: Direct contact with live conductors can cause severe injury or death, as current flow through the body. PV systems can produce lethal voltages even in low-light conditions.

Arc Flash and Arc Faults: High power electrical discharges between conductors can release intense heat (up to 35,000°F), leading to severe burns, explosions, and fires.

Fires: Faulty wiring, poor insulation, loose connections, or incorrect cable sizing can cause overheating, which can ignite fires.

Insulation Degradation: Long-term exposure to environmental factors like UV radiation, extreme temperatures, and moisture can degrade cable insulation, leading to short circuits and ground faults.

Physical Damage: Cables can be damaged by physical wear and tear, sharp edges, kinking, or pests chewing through the sheathing, compromising safety and performance.

System Failures and Voltage Drop: Using the wrong cable size can cause excessive voltage drop, reducing system efficiency and leading to overheating. 

Safety Precautions

Use Appropriate, Certified Cables:

Select cables specifically designed for solar applications (e.g., UV-stabilized, heat-tolerant XLPE or EPR insulation) that meet industry standards and certifications like UL 4703 or IEC 60216.

Ensure the cable's voltage and current ratings match or exceed the system requirements.

Use single-core, multi-stranded flexible copper cables for DC wiring, with an appropriate gauge to prevent overheating.

Proper Installation:

Follow the manufacturer's instructions for installation and termination of cables.

Route cables away from sharp edges, moving parts, and sources of heat. Use protective conduits or cable trays, ensuring they are not overloaded (max 60% capacity).

Secure cables properly to avoid stress, kinking, or tripping hazards.

Ensure proper termination with appropriate, waterproof connectors and apply correct torque settings to prevent loose connections and arcing.

Personal Protective Equipment (PPE) and Safe Work Practices:

Always wear appropriate PPE, including insulated gloves, safety glasses or face shields, and flame-resistant clothing when working with electrical systems.

Assume all wires are live and use a meter to verify de-energization before work.

Implement strict lockout/tagout (LOTO) procedures to isolate power sources during maintenance.

Avoid working alone and ensure emergency response plans are in place.

System Protection and Grounding:

Ensure all metal casings, structures, and equipment are properly earthed/grounded.

Install fire protection devices like circuit breakers, fuses, and arc-fault circuit interrupters (AFCIs) to prevent overcurrent and fire hazards.

Provide surge protective devices (SPDs) with arc extinguishing capabilities in combiner boxes and distribution boards.

Install rapid shutdown systems for safety during emergencies or maintenance.

Regular Inspection and Maintenance:

Conduct periodic visual inspections for signs of damage like fraying, cracks, burn marks, or discoloration.

Perform regular electrical testing (e.g., insulation resistance tests) to detect potential issues early.

Address any damage or loose connections immediately. 

9 comments:

  1. No Advisory Has Been Issued to Pause or Halt New RE Financing
    Posted On: 07 DEC 2025 11:00AM by PIB Delhi
    India has already achieved 50% of its installed electricity capacity from non-fossil fuel sources, five years ahead of the target set under its Nationally Determined Contributions to the Paris Agreement.

    As of 31 October 2025, the installed capacity from non-fossil sources stands at about 259 GW, with 31.2 GW added in the current financial year up to October 2025.

    At several places it is being reported that Ministry of New & Renewable Energy (MNRE) has issued advisory to lenders to pause fresh financing to Renewable Energy Projects amid significant overcapacity concerns.

    It is hereby clarified that MNRE has not issued any advisory to Financial Institutions for stopping lending to either renewable energy power projects or to renewable energy equipment manufacturing facilities.

    However, MNRE, has circulated to Department of Financial Servies and NBFCs like PFC, REC and IREDA, the status of present installed domestic manufacturing capacities across various sectors of solar PV manufacturing, including solar modules and upstream stages like solar cells, ingots-wafers, polysilicon as well as ancillary equipment like solar glass and aluminium frames, so that the financial institutions can adopt a calibrated and well-informed approach while evaluating proposals for financing any manufacturing facility in solar PV manufacturing sector and explore and expand their solar PV manufacturing portfolio to upstream stages like solar cells, ingots-wafers and polysilicon as well as solar module ancillaries like solar glass and aluminium frames, etc. as well, rather than being limited to financing solar PV module manufacturing facilities alone.

    The Government of India is committed to make India self-reliant in solar PV manufacturing and establish the country as a major player in the global value chain. This commitment is supported through a comprehensive set of initiatives, including the PLI Scheme for High Efficiency Solar PV Modules and measures to provide a level playing field for the Indian manufacturers. The catalytic effect of these interventions has resulted in an expansion in solar module manufacturing capacity, from just 2.3 GW in 2014 to around 122 GW enlisted in MNRE’s Approved List of Models and Manufacturers (ALMM) today. This expansion underscores the success of Indian solar PV manufacturing story through the collective efforts of industry, various State Governments and the Government of India, while also reinforcing India’s commitment to achieving 500 GW of non-fossil fuel capacity by 2030 and contributing meaningfully to global decarbonization efforts. MNRE remains committed to further strengthening the solar manufacturing ecosystem through continued policy support, infrastructure development, and innovation. The Ministry will continue engaging with stakeholders to ensure India’s solar journey remains inclusive, competitive, and future ready.

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  2. India Is a Key Driver of the Global Renewable Energy Surge; Records Highest-Ever 31.25 GW Non-Fossil Addition in FY 25-26 : Union Minister Pralhad Joshi

    Odisha to Get 1.5 Lakh Rooftop Solar Units Under New Utility-Led Aggregation (ULA) Model, Empowering 7-8 Lakh Citizens: Union Minister Joshi

    Union Minister Pralhad Joshi Addresses Global Energy Leaders’ Summit in Puri
    Posted On: 06 DEC 2025 2:29PM by PIB Delhi
    Highlighting India’s historic clean energy expansion, Union Minister of New and Renewable Energy Shri Pralhad Joshi said that India has recorded its highest-ever addition of non-fossil capacity in the current financial year at 31.25 GW, including 24.28 GW of solar. Speaking at the Global Energy Leaders’ Summit 2025 in Puri, Odisha, the Minister also announced a 1.5 lakh rooftop solar ULA model for Odisha, designed to benefit and empower 7-8 lakh people across the State.

    Speaking at the Global Energy Leaders’ Summit 2025 in Puri, in the presence of CM Shri @MohanMOdisha ji and Deputy CM Shri @KVSinghDeo1 ji, highlighted India's historic clean energy expansion. Underscored the country's remarkable solar capacity growth, which surged from 2.8 GW… pic.twitter.com/xEQUEYHFwv

    — Pralhad Joshi (@JoshiPralhad) December 6, 2025
    After taking nearly 70 years to reach 1 TW of renewable energy capacity in 2022, the world achieved 2 TW by 2024, adding the second terawatt in just two years, the Minister said. India is a key driver of this explosive global surge in renewable energy. In the last 11 years, the country’s solar capacity has grown from 2.8 GW to around 130 GW, a rise of more than 4,500%. Between 2022 and 2024 alone, India contributed 46 GW to global solar additions, becoming the third-largest contributor.

    The Minister noted that India holds the world’s fifth-largest coal reserves and is the second-largest consumer of coal. He said that even with this abundance, India is steadily balancing coal with renewable energy as the transition gathers pace. With global mechanisms now shaping industrial competitiveness, he said India’s shift towards renewable energy has become even more urgent and strategically important.

    Odisha Advances in Renewable Energy Adoption

    Highlighting major new initiatives for Odisha, the Minister announced the approval of a consumer-owned Utility-Led Aggregation (ULA) model under PM Surya Ghar for installing 1.5 lakh rooftop solar systems of 1 kW each in the State. This will benefit nearly 7-8 lakhs of people, especially from economically weaker households in Odisha.

    The Minister noted that Odisha is already demonstrating strong clean energy adoption. With over 3.1 GW of installed renewable capacity, clean energy now accounts for more than 34 percent of the State’s total installed power capacity. Under PM Surya Ghar Yojana, 1.6 lakh households have applied for rooftop solar, over 23,000 installations have been completed, and more than 19,200 families have received subsidies exceeding ₹147 crore directly into their bank accounts.

    Shri Joshi underscored that the overall ecosystem created by Prime Minister Shri Narendra Modi, ease of doing business, investor confidence, infrastructure, demand-driven schemes and strong Centre–State cooperation, has driven India’s renewable energy expansion.

    The Minister expressed confidence that the coming years will belong to Odisha, praising the strong leadership of Chief Minister Shri Mohan Charan Majhi, Deputy Chief Minister Shri Kanak Vardhan Singh Deo and the people of the State for advancing renewable energy and green technology.

    About the Global Energy Leaders’ Summit (GELS) 2025

    The Global Energy Leaders’ Summit (GELS) in Puri marks the first step in building a vibrant Community of Practice that brings together policymakers, innovators and industry leaders to accelerate India’s clean energy transition. Being held from 5–7 December 2025, GELS Puri 2025 will host Union and State Energy Ministers alongside global energy leaders, innovators and industry titans for an immersive summit focused on shaping the future of energy.

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  3. https://www.pib.gov.in/PressReleasePage.aspx?PRID=2199729&reg=3&lang=1

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  4. Regional Conference on Environment – 2025 to be Held in Chennai on December 6th & 7th 2025Posted On: 05 Dec 2025Joint Operation by Wildlife Crime Control Bureau and MP State Tiger Strike Force leads to arrest of an International Wildlife Criminal wanted on INTERPOL Red NoticePosted On: 05 Dec 2025PARLIAMENT QUESTION: REVISION OF GREENBELT STANDARDS FOR INDUSTRIAL AREASPosted On: 04 Dec 2025PARLIAMENT QUESTION: STEPS TAKEN BY GOVERNMENT TO CONTAIN STUBBLE BURNINGPosted On: 04 Dec 2025Union Environment Minister Shri Bhupender Yadav addresses Special Plenary on ‘Green Growth: Aligning Sustainability with Competitiveness’, at CII IndiaEdge 2025, in New DelhiPosted On: 03 Dec 2025Union Environment Minister Shri Bhupender Yadav reviews Air Quality Situation in Delhi-NCR; Directs Authorities from NCR States to accelerate on-ground implementation of Annual action Plans on Air Pollution ManagementPosted On: 03 Dec 2025Paddy Harvesting Season 2025 concludes with significant Reduction in Farm Fire Incidents across Punjab and HaryanaPosted On: 01 Dec 2025

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  5. Cleaning monocrystalline bifacial solar modules with water that has a high Total Dissolved Solids (TDS) concentration of 1100 ppm is not recommended and can lead to significant negative impacts on the performance and longevity of the panels. Recommended TDS levels for cleaning water are typically below 200 ppm, and ideally even lower (e.g., 30 ppm or less).
    Negative Impacts of 1100 ppm TDS Water
    Mineral Deposits and Scaling: Water with high mineral content (hard water) leaves behind mineral deposits (limescale) and water spots after evaporation. These deposits accumulate over time, creating a film on the glass surface.
    Reduced Efficiency: The mineral residue on the glass surface obstructs sunlight from reaching the solar cells, which directly reduces the panel's ability to generate electricity and thus decreases the overall plant efficiency and power output.
    Hot Spot Formation: The stains and scaling can cause uneven heating on the panel surface, potentially leading to the formation of "hot spots". Hot spots are areas of localized overheating that can permanently damage solar cells and reduce the panel's lifespan.
    Anti-Reflective Coating (ARC) Damage: Harsh mineral buildup can damage the delicate anti-reflective coating on the panel's glass, which further compromises performance.
    Increased Maintenance Costs: Using high-TDS water necessitates more frequent and specialized cleaning (e.g., using specific cleaning agents or demineralized water) to remove stubborn stains, increasing operation and maintenance (O&M) costs.
    Warranty Issues: Some manufacturers' warranties require the use of specific water quality (e.g., deionized or reverse osmosis water) for cleaning. Using water with 1100 ppm TDS may void the warranty.
    Recommended Action
    To avoid these issues, it is strongly advised to treat the water to reduce the TDS levels significantly or use alternative water sources.
    Ideal Solution: Use deionized (DI) or reverse osmosis (RO) water, as these have minimal or no dissolved solids and leave no residue.
    Acceptable Alternatives (if treated water isn't feasible): Rainwater may have low mineral content, but it should be filtered to remove grit and other physical contaminants.
    Treatment: Implement a water treatment system, such as an RO plant, to bring the TDS down to acceptable limits (below 200 ppm, ideally < 30 ppm) before use.

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  6. CRITICALLY POLLUTED RIVER STRETCHES
    Posted On: 04 DEC 2025 6:08PM by PIB Delhi
    As per the Central Pollution Control Board’s (CPCB) 2025 report on ‘Polluted River Stretches for Restoration of Water Quality', two polluted river stretches have been identified in Maharashtra, one in Assam and four in Gujarat, where the Biochemical Oxygen Demand (BOD) levels exceed 30 mg/l.

    CPCB identifies polluted river stretches in the rivers across the country in association with State Pollution Control Boards (SPCBs) and Pollution Control Committees (PCCs) under National Water Quality Monitoring Programme. Implementation of various pollution abatement programmes, including National River Conservation Plan (NRCP) scheme, has led to a reduction in the number of Polluted River Stretches (PRS) from 351 in 2018 to 296 in 2025.

    It has been observed that CPRS have been decreased from 45 (2018) to 37 (2025). Further, 149 PRSs have been delisted and improvement in the water quality of 71 polluted river stretches has been observed as compared to the CPCB's report of 2018.

    The Government, through the National Mission for Clean Ganga (NMCG) and in coordination with the concerned State Governments, implements a series of preventive and mitigative measures to safeguard the water quality of river Ganga during large religious gatherings such as the Kumbh Mela, Ardh Kumbh and Magh Mela.

    These measures include providing partial financial assistance, augmentation of sewage treatment infrastructure, provision of adequate temporary sanitation facilities, establishment of solid waste management systems, regulation of effluent discharges from Grossly Polluting Industries (GPIs) and organising continuous water quality monitoring. Awareness campaigns to sensitize pilgrims and deployment of enforcement teams to check polluting activities at Prayagraj.

    Besides, Prayagraj Mela Authority prepared a comprehensive Sanitation Plan for Maha Kumbh 2025 that included Service Level Benchmarks (SLBs) to ensure accountability and performance, post-Mela sanitation measures and laying of temporary drainage lines.

    In addition, based on the post event learnings, corrective actions and planning improvements are implemented for future events including enhanced reuse strategies, improved disinfection protocols and structured redeployment of sanitation infrastructure.

    Further, the CPCB carried out water quality monitoring at five stations (twice a week) from 12th January 2025 to 20th February 2025 during Maha Kumbh 2025 at Shringverpur Ghat, Lord Curzon Bridge, Nagvasuki Mandir, Sangam and Deeha Ghat, covering auspicious bathing (Amrit Snan) days.

    As per the provisions of the Environment (Protection) Act, 1986 and the Water (Prevention & Control of Pollution) Act 1974, all industrial units and other establishments generating trade effluents, are required to comply with the stipulated standards before discharging into rivers and water bodies. CPCB, SPCBs/PCCs monitor industries to ensure compliance of the provisions of the said Acts and take necessary action accordingly.

    As per CPCB, there are total of 4493 industries under Grossly Polluting Industries (GPIs), out of which, 3633 number of industries were operational and 860 industries had closed down on their own. Amongst the operational industries, 3031 industries were reported to be complying with the environmental standards, while show-cause notices issued to 572 industries, closure directions issued to 29 non-complying industries and direction issued to 1 unit.

    The information was provided by THE MINISTER OF STATE FOR JAL SHAKTI SHRI RAJ BHUSHAN CHOUDHARY in a written reply to a question in Lok Sabha today.

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  7. Water with 1100 ppm TDS (Total Dissolved Solids) contains a high concentration of dissolved inorganic salts (like Calcium, Magnesium, Sodium, Chlorides, Sulfates) and some organic matter

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  8. https://environmentclearance.nic.in/writereaddata/modification/Amendment/Attach_file/130820189Y14XCLVUpdatedForm1PFRandotherdocuments.pdf.pdf

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  9. https://www.greenkogroup.com/Brochure/GreenkoBrochure.pdf

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