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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.
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:
- Solar PV system sizing and simulation
- Rooftop and ground-mounted solar plant design
- Energy yield estimation and performance analysis
- Electrical design calculations
- Solar water pumping system calculations
- ACDB/DCDB engineering design
- Battery and hybrid system analysis
- Project documentation and techno-commercial evaluation
Live Electrical Safety Checks
| # | Check | Formula | Standard |
|---|---|---|---|
| 1 | Voc_max ≤ Inverter Max DC Voltage | Voc_STC × [1 + TC_Voc/100 × (T_min−25)] × N_mod | IEC 62548:2016 §6.1; IS 16221 Part 1 |
| 2 | Vmp_max ≤ MPPT Max Voltage | Vmp_STC × [1 + TC_Voc/100 × (T_winter−25)] × N_mod | IEC 62548:2016 §6.2; IS 16221 Part 2 |
| 3 | Vmp_min ≥ MPPT Min Voltage | Vmp_STC × [1 + TC_Pmax/100 × (T_summer−25)] × N_mod | IEC 62548:2016; inverter MPPT range |
| 4 | Array Current/MPPT ≤ MPPT Imax | Imp_STC × Strings_per_MPPT | IEC 62548:2016 §6.3; fuse >2 strings |
| 5 | Total DC Current/Inverter ≤ Inv Max DC Current | Imp × Str/MPPT × MPPT_used | IEC 62109-1:2010 §12; IS 16221 Part 1 |
Simulation Results & Analysis: Simulation Engine
The simulator runs a 12-month energy model (monthly resolution approach):
- POA irradiance (H_POA from transposition)
- Effective irradiance: apply IAM correction, soiling factor
- Cell temperature: NOCT model or Uc+Uv model (per Uc, Uv, wind speed)
- E_array: Pnom × H_POA_eff × temperature correction × DC loss chain × bifacial gain
- Clipping: apply ILR-based clipping loss
- E_AC: E_array × η_inverter × (1 − AC_wiring_loss)
- 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
Rooftop Hybrid Solar Simulation Software RHS Version-11.12
Rooftop Hybrid Solar (RHS) V.11.12 appears to be a specialized, often freely available, simulation software tool used for designing, modeling, and analyzing rooftop solar photovoltaic systems, particularly those combined with battery storage. It helps users simulate system performance, evaluate hybrid setups (grid + battery), and often aids in technical, financial, and regulatory planning for solar installations.
- Definition: A hybrid system combines solar panels with a battery system to store energy, while remaining connected to the utility grid, offering both off-grid and on-grid capabilities.
- Simulation & Design: Software like RHS V.11.12 helps optimize component selection, such as inverter sizing, battery capacity, and panel orientation.
- Benefits: These systems are versatile, offering continuous power during grid outages, reducing high-tariff electricity consumption, and maximizing self-consumption.
- Components: Simulations typically include photovoltaic modules, hybrid inverters, Lithium-ion or Lead-acid battery packs, and monitoring systems.
- Hybrid & Storage Focus: RHS specializes in hybrid systems (combining solar with storage - Lithium-ion battery ESS) to maximize self-consumption.
- Performance Analysis: These tools calculate energy yield, production losses, PR %, CUF, Specific Yield per Day, DC/AC ratio and Yearly and monthly average values of photovoltaic electricity (AC) delivered by the total installed capacity of a PV system.
- Financial Analysis: Calculates critical financial indicators such as Levelized Cost of Energy (LCOE) and Return on Investment (ROI) to evaluate profitability.
- Technical Planning: Assists in auditing and designing, suitable for professional solar project development.
This software developed and offered by the Institute of Solar Technology (IST), to help professionals and rooftop solar vendor in the solar industry.
IST Solar Training included all engineering design software / tools
IST Pitched Roof Solar MMS Structural Design Analysis Tool
1 — Project Input: Wind standard selection (ASCE 7-10/16 or IS 875 Part 3), basic wind speed, exposure/terrain category, seismic zone, roof height, pitch angle, rafter span, panel gap (locked to 150mm minimum per IEC 62938), panel dimensions/weight, rail and hook spacing, steel grade, rail material (Al 6005A-T5, 6063-T6, Steel, SS316), and snow zone.2 — Roof Type: Six roof surfaces — Clay/Concrete Tiles, Metal Sheet, Corrugated Sheet, Asphalt Shingles, Slate, and Standing Seam Metal. Each auto-fills the correct dead load, hook type, waterproofing method, and tile overlap. Standing seam is highlighted as no-penetration (best option).
3 — Load Analysis: Complete wind analysis per ASCE 7-10/16 or IS 875 Part 3 including uplift and download coefficients specific to pitched roof panels, plus dead load, snow load (IS 875 Part 4), seismic base shear (IS 1893), and all five load combinations per IS 800 Table 4.
4 — Member Design: IS 800:2007 limit state checks for aluminium rail — bending (Cl 8.2), shear (Cl 8.4), and deflection (L/250). Auto-selects adequate rail section from database with utilisation percentages and pass/fail.
5 — Roof Hooks: Pull-out and shear capacity checks for the selected hook type with factor of safety ≥ 2.0. Waterproofing specification and galvanic isolation details per IEC 62938.
6 — Drawings: Four views — side elevation (showing pitch angle, 150mm gap, rails, hooks), top plan view (array layout with hooks), rail layout with hook positions and dimensions, and hook/bracket connection detail. All download as PNG.
7 — Component Database: Full CRUD for Rails/Profiles, Roof Hooks & Clamps, Mid/End Clamps, Fasteners, and Solar Panels with all specifications.
8 — Full Report: 13-section STAAD-style report covering all codes (ASCE 7, IS 875, IS 800, IS 1893, IEC 62938, IEC 62548), load tables, member design, hook design, installation notes, and quality checklist. Print or copy to clipboard.
IST SOLAR SLD TOOL
IST SOLAR SLD TOOL (Solar Power Plant SLD Drawing Tool) developed by © Institute of Solar Technology - a complete SLD drawing software. Anyone can use without CAD software knowledge.
Here's what it includes:Component Library (drag & drop) All 25+ components organized by category: PV Strings, Mount Structure, DCDB, Fuses, DC SPD, Inverters (central & string), ACDB, Energy Meter, MCB/MCCB, Isolator, AC SPD, Earth Pit, Lightning Arrester, CT, VT, Transformer, VCB, Bus Bar, Junction Box, Battery, SCADA, and free Text Labels.
IST Solar Power Plant design software
IST provide business training and engineers training. Not for solar installer /labour training. If you want to become solar expert to make big solar business, enroll now.
Solar business course provides training on starting and running a solar energy business, covering technical aspects of solar panel systems, business planning, marketing, and project management. These courses cater to individuals interested in entrepreneurship in the renewable energy sector, as well as professionals looking to expand their knowledge.
Active Participant Presence in Learning:
- Engaging Activities:Incorporating interactive learning activities, such as group discussions, role-playing, simulations, and hands-on projects, can enhance participant engagement and knowledge retention.
- Real-World Applications:Linking the training content to real-world applications, such as case studies and site visits, can help participants understand the practical relevance of the knowledge and skills being taught.
- Technology Integration:Utilizing technology, such as virtual reality or online platforms, can provide immersive and interactive learning experiences, especially for complex tasks.
- Collaborative Learning:Fostering a collaborative learning environment where participants can learn from each other's experiences and perspectives can enhance the overall learning experience.
Discover the PV business and expand your professional options
Solar Project Design Master Course (Rooftop and Large solar system)
Huge job opportunity Solar Design engineer job
Search Solar Design Engineer Job
For working professionals, early morning or night class slot available
👉 Introduce with Mentor
Solar Power Plant Releated Cloud Software access from IST E-Library-
👉Know about IST Cloud App
- DCDB DESIGN Software
- Solar ACDB Designer Software
- Structural Design & Analysis Software
- Solar Water Pump Design Software
- Solar Power Plant Design Software
- Solar Power Plant SLD Drawing Software
- Solar Project Quotation Software
Admission going on for 2nd Batch of Jul - 2026
PV Technology & Business Management - Business Course (Online)
(Rooftop and Large solar system)
Institute of Solar Technology (IST) cover business opportunities in Residential, Public Sector, Commercial and Industry.
Solar Power Plant Releated Cloud Software access from IST E-Library-
👉Know about IST Cloud App
- DCDB DESIGN Software
- Solar ACDB Designer Software
- Structural Design & Analysis Software
- Solar Water Pump Design Software
- Solar Power Plant Design Software
- Solar Power Plant SLD Drawing Software
- Solar Project Quotation Software
Admission going on for Jul - 2026
Rooftop Hybrid Solar Simulation Software RHS Version-11.12
Rooftop Hybrid Solar (RHS) simulation software, such as Rooftop Hybrid Solar Simulation Software RHS V 11.12, is designed to model, design, and optimize grid-connected solar PV systems with battery energy storage. These tools simulate system performance under varying solar irradiation, battery state-of-charge, and grid-connected,, or off-grid scenarios, facilitating technical analysis.
State-Wise List of Solar Inverter Manufacturers
- Gujarat: Goldi Solar, Helox Power, Citizen Solar, ASEL, Hi-Rel Power Electronics, Cathode Power, UR Energy, Crystal Solar Energy, Xwatt Energy, Gronsol Solar Inverter (Surat).
- Maharashtra: Polycab, Praflux, Tata Green Batteries, KSolare Energy, EnerTech UPS, Selec Controls, Kirloskar Solar, Waaree Energies, UCS, ProstarM Info Systems, Vertiv Energy (formerly Emerson).
- Haryana: Luminous Power Technologies, AEI, Envisun Solar, Eastman, Smarten, Electrower Technologies, Loom Solar, Livfast, Livguard, Himalayan Solar, OOMIPL.
- Tamil Nadu: Swelect Energy Systems, Feston, IPC Technologies, Sakthi Electrical Control, Hotsun Solar Systems, SIASPL, Evolve Energy, Vispra, Kongu Engineers.
- Delhi/NCR: MuscleGrid, Luxntek, Friend Solar, Turbosun, Omcam Power, Galo Energy, TPIL, UTL, Sun Stellar, Usha Shriram Enterprises, Servotech.
- Uttar Pradesh: NEPL, Khaitan Solar, Solarvin, Statcon Energiaa, Sanguard, Tracksun Solar, Lento, Enventa Power, ARM Power, Ritika, Livsol, Fortuner, SunGarner.
- Kerala: Sakthi Inverters, Reverie Solar, Murickens, Electra, Fuze Batteries, Lagnuvo, Beacon Power Systems, V-Guard, Keltron.
- Karnataka: Maruthi Solar Systems, SETfusion, GTD Labs, Powerone Micro Systems, POM Power, Techser Power Solutions, Pace Power Systems, ABB India (Bengaluru).
- West Bengal: Thea, Exide Industries, Agni Power & Electronics, Signotron, Optimal Power Synergy.
- Uttarakhand: Sunflix Energia, KamTech, NECS Electric, Eapro Global.
- Odisha/Telangana: IYRO Solar (Odisha), Glow Power Technologies, Firefly Technologies, Analogics Tech, Solar Idea, PPS Enviro Power (Telangana).
- Himachal Pradesh/Rajasthan: Su-kam Power (Himachal Pradesh), Duak, One Sun, Kayam Solar, Novergy (Rajasthan).
Here's a more detailed look at what makes IST stand out:
Practical Training:
IST focuses on providing practical, hands-on training in the solar sector. This includes training on the latest products and technologies used in solar installations.
Industry-Standard Syllabus:
The institute uses an industry-standard syllabus, ensuring that students are equipped with the knowledge and skills needed for the solar industry.
Expert Faculty:
Reviewers praise the quality of instructors and the ease with which complex topics are explained, according to the Institute of Solar Technology Advisors.
Focus on Entrepreneurship:
IST aims to empower students to become solar entrepreneurs, providing them with the knowledge and skills to start their own businesses in the solar field
Support and Resources:
IST provides resources like an e-library and round-the-clock support, fostering self-learning and development.
Alumni Success:
IST boasts a network of successful alumni who have made notable contributions to the solar industry.
Pioneer in PV Solar Technology:
IST is recognized as a leader in PV solar technology training and has been an academic partner with the national and international University
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