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Emerging Opportunities - Wind Solar Hybrid System

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This presentation highlights on the following :
Need of wind-solar hybrid systems
Indian policy support to hybrid systems - MNRE & Gujarat State
Renewable Energy integration with grid,
Cost savings in hybrid for AC-AC & DC-DC coupling systems,
Case studies

Published in: Business
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Emerging Opportunities - Wind Solar Hybrid System

  1. 1. GENSOL ENGINEERING PVT. LTD www.gensol.in Emerging Opportunities - Solar & Wind Hybrid Systems
  2. 2. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Solar Wind Hybrid System – Market Outlook Increasing demand for clean fuel micro grid and smart grid electricity will boost and drive the market demand for global hybrid solar wind systems. Hybrid Solar Wind Market size was over USD 700 million (approx. INR 4765 Crores) in 2015 with forecasted to be more than 8% from 2016 to 2024. SECI issued a RFS for 2500 MW ISTS connected Wind Solar Hybrid Power Project Gensol GroupSource : https://www.gminsights.com/industry-analysis/hybrid-solar-wind-market Economically, solar-wind hybrid systems have the potential to save about 7-10% in capital investments owing to the synergies. Wind & Solar in most part of the country are complement to each other.
  3. 3. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Indian Scenario- Outlook & Upcoming Projects Gensol Group 1 •To encourage the development of wind solar hybrid system the GoI set a target of 10GW from Solar Wind Hybrid. 2 •200 MW hybrid power plant coming up at Ramagiri, Anantpur by National Renewable Energy Development Corporation (NREDCAP) and SECI. 3 •MNRE’s Program to Set Up 2.5 GW ISTS-Connected Wind-Solar Hybrid Projects Approved and SECI will be the nodal agency for the implementation of this program. RFS highlighted 6 •The state of Andhra Pradesh released a draft document outlining its plans for 3GW of wind and solar hybrid projects by 2019/20. 7. •Kerala’s Agency for Non-Conventional Energy and Rural Technology (ANERT), is working on an experimental technology demo to 3MW of solar, 4MW of wind, and battery storage. •Hero Future Energies has completed India’s first large-scale solar and wind energy hybrid project in Kavithal, Raichur District in the state of Karnataka. Project includes an existing 50MW wind farm, now has a neighboring 28.8MW solar PV site to form a hybrid system. 5 • The Solar Energy Corporation of India (SECI) has announced plans to issue a tender to develop 2 gigawatts of solar and wind energy capacity. SECI will auction 1 gigawatt of solar and 1 gigawatt of wind energy capacity at a location likely to be disclosed once the actual tender documents are released. Source - https://mercomindia.com/, http://seci.co.in/show_whats_new.php?id=596
  4. 4. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIESIndian Policy Support – National Wind Solar Hybrid Policy • To reduce the intermittency of the power sources. • Minimization of the variability • Optimally utilizing the infrastructure including land and transmission system Gensol Group Name of Implementing Policy – National Wind Solar Hybrid Policy Date of Issue – 14th May 2018 Policy Highlights Wind-solar hybrid power plants, Wind Turbine Generators (WTGs) and Solar PV systems will be configured to operate at the same point of grid connection. A wind-solar project will be considered a hybrid project if the rated power capacity of one resource is at least 25 percent of the rated power capacity of other resource. The power procured from the hybrid project may be used for fulfilment of solar RPO and non-solar RPO. No additional connectivity or transmission capacity charges will be levied by the respective transmission entity for the hybridization at existing wind or solar projects. Battery storage can be added to the hybrid project to reduce the variability of output power from wind solar hybrid plant. All fiscal and financial incentive available to wind and solar power projects will also be made available to hybrid system. Source : https://mnre.gov.in/sites/default/files/webform/notices/National-Wind-Solar-Hybrid-Policy.pdf Motive-
  5. 5. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIESIndian Policy Support - Gujarat Wind Solar Hybrid Policy • To provide a frame work for the promotion of large grid connected wind solar PV system for optimal and efficient utilization of transmission infrastructure and land, • reducing the variability in renewable power generation and thus achieving better grid stability. Gensol Group Name of Implementing Policy – Gujarat Wind Solar Hybrid Policy Date of Issue – 21st June 2018 Policy Highlights - The Wind Hybrid Solar Power Generation Plants are divide into 2 categories : Type A – Category includes conversion of existing / under construction Wind or Solar power plant into Hybrid one.; Type B – New Wind Solar Hybrid power generation project. The total power injection into the grid is not more than the transmission capacity allowed by GETCO for this purpose. The developer may approach GETCO for determining additional wind/ Solar capacity evacuated through existing transmission line. The developer for new Hybrid project shall establish evacuation line upto receiving end sub- station of GETCO In case the total injection of power from hybrid system exceeds allocated sanctioned transmission capacity such power shall be considered as inadvertent flow of power and shall not considered for commercial settlement Both wind and solar PV system shall use separate set of internal electrical lines & equipment's. Energy generation from Wind/Solar capacity shall be measured separately at pooling/sending end Substation on 15 Min time block by installing ABT compliant meters by project developers. Exempted from payment of electricity duty & exemption from demand cut to the extent of 50% of installed capacity. Operative Period – 5 years Source : https://geda.gujarat.gov.in/news_single.php?news=162 Motive-
  6. 6. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Policy Related & Other Challenges Gensol Group Necessary standards and regulation including metering methodology and standards, forecasting and scheduling regulations, REC mechanism, Grant of connectivity, sharing of transmission line for Wind solar hybrid system is needed. In case, lower tariff gen. is mixed with higher tariff gen. in order to get higher tariff, the entire quantum of gen. shall be considered towards lower tariff generation. Tariff allocation needs to be determined for hybrid projects. No provision of exporting excess power more than the contracted/ granted transmission capacity. Forecasting & scheduling procedures needs to be incorporated to understands the demand pattern. No clarification on the cost of excess energy exported to the grid. No clarification for selecting technologies under hybrid scheme. Policy does not speaks about clearances to be kept between (horizontally and vertically)solar and wind plants . Major challenges of harnessing the battery power for reducing variability of output power.
  7. 7. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES AC-AC & DC-DC Coupled Systems Gensol Group DC Coupled Systems AC Coupled Systems Inverter DC-DC Need of Hybridization For fulfilling demand-supply gap; To provide uninterrupted power supply; For increasing clean energy footprints; System can be designed for both microgrid and grid- connected projects; Solar Wind are complimentary Low cost of transmission infrastructure
  8. 8. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Case Study (A) – Wind Solar Hybrid Gensol Group Variability is lower for a mix of wind and solar power rather than all-solar or all-wind at a given location because both resources do not move in lock step & most of the time they are complementary. Connecting more MW of Solar in a wind farm were studied for a site of about 300MW wind farm. •An addition of about 150MW (50% of existing wind installed capacity) Solar has hardly caused any overloading of the power infrastructure suitable for 300MW wind, with negligible number of occasions for backing down of generation. •An addition of 225MW (75% of existing wind installed capacity) would cause backing down of generation to avoid stress on the Power Infrastructure at the Substation for a short time in a year •An addition of 300MW (100% of existing wind installed capacity) would cause backing down of more generation to avoid stress on the Power Infrastructure at the SS for a short time in a year. • It can be seen that backing down is not substantial in all the cases and would vary from site to site. Months Probable loss of energy due to backing down, case 1, wind : solar = 1:0.5 (MWH) Probable loss of energy due to backing down, case 2, wind : solar = 1:0.75 (MWH) Probable loss of energy due to backing down, case 1, wind : solar = 1:1 (MWH) Jan 0 0 0 Feb 2 111 664 Mar 8 127 965 Apr 69 536 2127 May 0 0 0 Jun 0 0 8 Jul 0 66 395 Aug 0 0 144 Sep 23 58 94 Oct 0 29 495 Nov 0 56 297 Dec 26 494 3163 Total 128 1477 8352 Loss (%) 0.04% 0.33% 1.89% As wind and solar generation are complementary to each other, these can utilize the common infrastructure viz. Substation and the lines to the fullest extent, without exceeding the technical limits. As wind and solar generation are complementary to each other, these can utilize the common infrastructure viz. Substation and the lines to the fullest extent, without exceeding the technical limits.
  9. 9. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Case Study (B) Gensol Group About the Project Location – Jamgoda Hills, Madhya Pradesh The Proposed Solar Wind Hybrid project, located in India is a 22.5 MW plant divided in two division, the SPP of 12 MW and Wind Power Plant of 10.5 MW. DC Capacity 16.5 MWp AC Capacity 12 MW Annual Specific Yield 1673 kWh/kWp/Year Annual Energy Yield 27597 MWh SPP Details Performance Ratio (PR) 79.06% AC Capacity 10.5 MW Annual Wind Speed Annual Energy Yield 32879 MWh WPP Details Plant Load Factor (PLF) 35.74% AC Capacity 22.5 MW Annual Energy Yield 60,529 MWh S+W PP Details Plant Load Factor (PLF) 30.71% Location – India AC Load
  10. 10. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES AC-AC & DC-DC Coupled Systems- Cost Savings Gensol Group In Case study B, from the cost analysis, it has been evaluated that there will be huge savings in cost evacuation system, cable installation and switchgears. Although, it should be noted that in DC coupled systems, DC cabling increases leading to generation loss in cabling loss as converters are located at top in wind turbine DC Coupled Systems Quantity Cost in Lacs Delta in cost due to DC Coupling (Assuming 10 km turbine) 1) Solar 12 MW DC SMB to Inv. +260.00 lacs Hybrid 2) Solar Inverter -228.00 Lacs 3) Switchgears -25.25 lacs 4) Transformers -78.00 lacs 5) Cables -20.00 lacs 6) Services -10.00 lacs Total Savings 91+10 lacs= 101 lacs AC Coupled Systems Capacity Cost in Lacs Non Hybrid (Assuming 10 km turbine) 1) Wind 10.5 MW 10 lacs X 10 km= 100 lacs 2) Solar 12 MW 10 lacs X 10 km= 100 lacs A) Total 200 lacs Hybrid B) Wind+Solar 22.5 MW 10 lacs X 10 km = 100 lacs Savings A-B 100 lacs Services 10 lacs Total Savings 110 lacs (Plus GSS feeder cost) In DC coupled system apart from evacuation cost, AC switchgears, cables installation is reduced which leads to cost saving in range of 20-25%. In AC Coupled systems, savings in evacuation infrastructure, which is generally tends to be close to 10-15% of the cost which is a saving. Reason for range is due to evacuation voltage levels at which system is designed.
  11. 11. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Site Details -Plant Layout & Shadow Analysis Gensol Group Independent metering for both SPP And WPP at the pooling SS Strategic location for installation of BESS will be determined Feasibility of nearest Substation. Capacity estimation for solar power plant Identification of land for solar power plant Analysis of shadow free area in Wind Power Plant site. Selection of Wind Solar Hybrid Project
  12. 12. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Site Details -Plant Layout & Shadow Analysis Total Energy Generation (Hybrid)-60,529 MWh CUF -30.71% Total proposed Solar capacity is of 16.5 MWp. 2.87 MWp solar capacity is removed due to shadow impact. Shadow analysis is carried out, only turbine “J5” is south facing which Impact the solar generation. Total 5 Nos. of Wind turbine of 2.1MW Suzlon make is to be laid over the site. Total area acquired for the 22.5 MW capacity Solar Wind Hybrid Power Plant is 77.8 Acres. Gensol Group
  13. 13. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Site Shadow Analysis Gensol Group Time: 8:20:00 am Time: 9:00:00 am
  14. 14. SINGLE AXIS TRACKER- TYPE & TECHNOLOGIES Site Shadow Analysis Gensol Group Time: 11:00:00 am Time: 4:00:00 pm
  15. 15. About Gensol Solar Advisory Services Solar EPC Services Solar O&M Services 20,332 MW 95 MW 2200 MW Gensol Group Gensol provides concept to commissioning solar advisory, execution and operations services for Solar Projects in India and abroad. 150+ Advisors Anmol Singh Director +91 7698833311 anmoljaggi@gensol.in Imran Naqvi Head of Strategic Advisory & Business Development +91 9327016962 imrannaqvi@gensol.in Gurpreet Singh Head of Engineering & Operations +91 9725544301 gurpreetsingh@gensol.in Puneet Singh Jaggi Director +91 9998025820 puneetjaggi@gensol.in Pranay Mundra President +91 9850673664 pranaymundra@gensol.in Shivya Singhal Head of Supply Chain & Group CFO +91 9376703846 shivyasinghal@gensol.in 230+ Projects 70+ Engineers 170+ Projects 210+ Engineers 45+ Projects
  16. 16. Gensol is one of the leading consultants and system integrators for Solar Power Plants. We boast of a portfolio of over 6000 MW of Solar Photovoltaic Plants. Gensol is also a channel partner to Ministry of New & Renewable Energy and installs kW scale Solar Rooftop systems on a turnkey basis with more than 42 MW of cumulative installations across the country. The information contained herein is of a general nature and is not intended to address the circumstances of any particular individual or entity. Although we endeavor to provide accurate and timely information, there can be no guarantee that such information is accurate as of the date it is received or that it will continue to be accurate in the future. No one should act on such information without appropriate professional advice after a thorough examination of the particular situation. Email: solar@gensol.in | Web: www.gensol.in | Phone: +91 79 40068235 | Twitter: gensol_tweets Gensol Engineering Pvt Ltd | Gensol Consultants Pvt Ltd | Solarig Gensol Utilities Pvt Ltd Corporate Office A2, 12th Floor Palladium, Opp. to Vodafone House , Corporate Road, Prahladnagar, Ahmedabad, Gujarat. India - 380015

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