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Institute of Solar Technology (IST) an autonomous body for startups in solar energy training, have a milestone with 12 years of experience in Entrepreneurship Business Development, a long history of operation. Institute was founded in 2012, Indian oldest institute. To know more look "About Us" section.

☀️ IST PVSolar Simulator v8.1.0

IST PVSolar Simulator v8.1.0, a major version update for renewable energy design software, it is used to simulate, plan, and optimize photovoltaic power systems, model microclimates, or calculate energy generation based on meteorological data.

IST PVSolar Simulator v5.0

Key Features of ☀️ IST PVSolar Simulator v8.1.0

The primary features often included in a Version 8.1 solar simulation environment are:

  • Row Spacing Calculator popup: to ensure zero inter-row shadow during the design shading window. For each season (Winter Dec 21, Equinox Mar 20, Summer Jun 21), the calculator sweeps the shading window in 15-minute steps and finds the worst-case (minimum) solar altitude.
  • Grid-Connected System Design: Tools to design and estimate energy yield for large-scale, standard grid-tied PV systems
  • Meteorological Data Integration: Importing global or local weather files (e.g., typical meteorological year) to model long-term climatic impact.
  • Full simulation + 6 result: Monthly charts, Loss cascade, P50/P75/P90/P99, Economics (NPV/LCOE/Payback), CO₂ balance, 25-year projection
  • Financial & Economic Analysis: Calculating levelized cost of energy (LCOE), ROI, and system installation profitability.

IST PVSolar Simulator is an advanced solar photovoltaic (PV) system design and simulation software developed to support engineers, entrepreneurs, students, and renewable energy professionals in designing efficient solar power systems. The software initiative is associated with the visionary work of Sanjib Kr. Roy, Founder of Institute of Solar Technology, and IST R&D team members. Institute of Solar Technology IST, a leading renewable energy training and entrepreneurship development institution in India.

The simulator is designed to simplify complex solar engineering calculations and provide high accuracy design support for rooftop, C&I and utility-scale solar projects. IST PVSolar Simulator integrates AI based technical design methodologies, solar resource analysis, system sizing, electrical calculations, and performance estimation tools that help users to generate real-world solar plant simulation.

IST PVSolar Simulator V8.1.1 is a professional, browser-based PV simulation platform aligned with IEC 61724-1:2021, IEC 61853, BIS IS 16169, CEA Technical Standards 2010 (Amended 2023), and MNRE 2025 guidelines. The simulation engine uses POA transposition, cell temperature (Uc+Uv model), monthly energy, PR, P50/P90 exceedance probability, and LCOE/NPV/IRR financial analysis.
It supports project development in areas such as:

  1. Solar PV system sizing and simulation
  2. Rooftop and ground-mounted solar plant design
  3. Energy yield estimation and performance analysis
  4. Electrical design calculations
  5. Solar water pumping system calculations
  6. ACDB/DCDB engineering design
  7. Battery and hybrid system analysis
  8. Project documentation and techno-commercial evaluation

Live Electrical Safety Checks

#CheckFormulaStandard
1Voc_max ≤ Inverter Max DC VoltageVoc_STC × [1 + TC_Voc/100 × (T_min−25)] × N_modIEC 62548:2016 §6.1; IS 16221 Part 1
2Vmp_max ≤ MPPT Max VoltageVmp_STC × [1 + TC_Voc/100 × (T_winter−25)] × N_modIEC 62548:2016 §6.2; IS 16221 Part 2
3Vmp_min ≥ MPPT Min VoltageVmp_STC × [1 + TC_Pmax/100 × (T_summer−25)] × N_modIEC 62548:2016; inverter MPPT range
4Array Current/MPPT ≤ MPPT ImaxImp_STC × Strings_per_MPPTIEC 62548:2016 §6.3; fuse >2 strings
5Total DC Current/Inverter ≤ Inv Max DC CurrentImp × Str/MPPT × MPPT_usedIEC 62109-1:2010 §12; IS 16221 Part 1

Simulation Results & Analysis: Simulation Engine

The simulator runs a 12-month energy model (monthly resolution approach):

  1. POA irradiance (H_POA from transposition)
  2. Effective irradiance: apply IAM correction, soiling factor
  3. Cell temperature: NOCT model or Uc+Uv model (per Uc, Uv, wind speed)
  4. E_array: Pnom × H_POA_eff × temperature correction × DC loss chain × bifacial gain
  5. Clipping: apply ILR-based clipping loss
  6. E_AC: E_array × η_inverter × (1 − AC_wiring_loss)
  7. P50/P75/P90/P95: apply Gaussian IAV uncertainty

POA Irradiance is the actual sunlight hitting a solar panel at its specific tilt and orientation. TMY (Typical Meteorological Year) is a synthetic dataset of hourly weather values meant to represent an "average" year over a long historical period To get the most accurate performance estimate for a PV plant, system designers take the raw horizontal GHI data from a TMY file and mathematically transpose it into POA Irradiance using the planned panel angles.

Sanjib Roy has played a significant role in renewable energy skill development, mentoring solar entrepreneurs and engineers through practical training, software-based learning, and entrepreneurship development programs. Industry and institutional profiles describe him as a solar technology mentor and corporate trainer with extensive experience in PV solar system design and business development.



Final Report Intelligence

Full A4-style report with cover page, summary, system parameters, losses table, monthly results, P50-P90, economics, CO₂, signatures.

  • Project Summary: Geographical Site - Solar Resource — Monthly Averages import from NASA ESS upto 2024.
  • Tilt Angle and Azimuth: Tilt angle auto optimization, Calculate Annual POA,
  • System Summary: PV Array Characteristics, Inverter Detail, System Loss Diagram,
  • Main Results: System Production, Energy Injected into Grid vs Year of Operation, Performance Ratio vs Year of Operatio
  • Economic Evaluation & Financial Analysis: P50 / P75 / P90 / P95 Evaluation, Cost of the System & Financial Analysis, Detailed Economic Results — Year by Year
  • CO₂ Emission Balance
  • PDF (print-quality) report file


Reputation and reviews:

For comprehensive solar business training, consider programs focused on solar PV technology and business management, especially those offered by the Institute of Solar Technology (IST).

Reviews and ratings of educational institutions are crucial for gauging student satisfaction and overall quality. They provide valuable insights into areas of strength and areas needing improvement, helping institutions enhance their offerings and better serve their students.
Check online reviews and ratings of the institutes to gauge their quality and student satisfaction.

Visit: IST Prestigious Alumni Feedback

 Institute of Solar Technology (IST):
  1. Focus:
    IST specializes in PV solar technology and business management, with a strong track record of training solar entrepreneurs.
  2. Training Style:
    They offer Instructor-Led online class / in-house class and practical sessions at institute or at project site (as per availability), with a focus on project development and quality management.
  3. Course Content:
    The training includes site assessment, feasibility studies, design, installation, performance modeling, and quality assurance. Offers comprehensive training programs, including Solar Technology and Business Management, Energy storage Lithium-ion battery manufacturing, Solar Powered Electric Vehicle Charging Station design and development course including specialized courses Solar Power Plant Design Master course for solar engineers.
  4. Target Audience:
    IST caters to a wide range of professionals, including entrepreneurs, managers, project developers, and EPC companies.
    This organization aims to empower women through solar technical training and community-building, fostering a network of female solar professionals.
  5. Mentorship:
    Experienced trainers act as mentors, providing guidance and support to trainees beyond the formal training sessions, fostering a positive learning environment.

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IST Prestigious Alumni Feedback

IST alumni have achieved significant success, gained recognition, or made notable contributions in PV Solar and Renewable energy areas.

SK SAIJUDDIN

Solar Project Design Master Course is a very challenging and interesting course. The knowledge and skills that I have acquired through IST played a significant role in my achieving my position. The recruiting department of the firm I work for was quite impressed with the educational curriculum. Thank you IST! You have given me the opportunity of making my dreams of becoming a paralegal a reality.

- SK SAIJUDDIN,
Gauhati, India, Assam
North East Solar Associate

Profile: https://www.facebook.com/profile.php?id=61551408842360
SURAJIT THAKUR

This Course is comprehensive and covers all technical and commercial aspect of Solar PV. It gives depth knowledge of understanding PV solar project from ROOP TOP to MW scale project. IST is a great institute to learn solar PV technology course.

- SURAJIT THAKUR,
Purba Bardhaman, West Bengal, India
Team Lead at TATA POWER SOUTHERN ODISHA DISTRIBUTION LIMITED

Profile: https://www.linkedin.com/in/surajit-thakur-3b457014/
Mayank Tyagi

Mentor Sanjib Roy is extremely knowledgeable and approachable, and he explains concepts and formulas patiently and clearly. Mentor Sanjib Roy, as my trainer.

- Mayank Tyagi,
Ghaziabad, Uttar Pradesh
Manager at Ernst And Young

Profile: https://www.linkedin.com/in/mayanktyagi29/
ENUGANDULA ANAND

The most positive aspects of this course: covered all aspects, covered theory and practical, Govt. regulatory, finance, rate quotation, installation and maintenance.

- ENUGANDULA ANAND,
Mumbai, Maharashtra, India
Mumbai, District Manager

Profile: https://www.linkedin.com/in/anand-enugandula-78593a182/
MITHILESH K SHRIVAS

The most positive aspects of this course: covered all aspects, covered theory and practical

- MITHILESH K SHRIVAS,
Bhubaneshwar, Odisha, India
Solar PV EngineerSolar PV Engineer at Konark Energy

Profile: https://www.linkedin.com/in/mithilesh-k-shrivas-4043a4b9/details/education/

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  1. Director/Founder
  2. Programme Managers
  3. Project Lead/Project Mgrs
  4. EPC Associate
  5. Startup

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