Floating Solar PV Technology An Introduction

Transcription

1 Floating Solar PV Technology An Introduction

2 Floating Solar Technology Market Outlook The Global Floating Solar Panels Market is expected to reach US$ Million by 2023, expanding at a CAGR (Compound Annual Growth Rate) of 65.1% during the forecast period 2016 to However, high cost of installation had restricted the use of floating solar panels which in turn is anticipated to hamper the demand for the floating solar panels. The cost has progressively decreased over time and is expected to be comparable to land mount systems. Global Floating Solar Panels Market Size and Forecast, (US$Million) GLOBAL FLOATING SOLAR PAN ELS MARKET SIZE BY PRODUCT TYPE, $M ( ) O Stationary Floating Solar Panels Solar Tradcing Floating Solar Panels Global Floating Solar Market Size and Forecast Source - Forecast-Analysis-to-2022-Sub-Market-Regional-Country-Level-Analysis-Research-and- Markets

3 Floating Solar Technology Development Proactive Countries Floating solar projects are mostly located in Asia showing high potential for mass floating solar market growth with almost 78% of the available water bodies. Pilot projects have been completed in many countries across the world. - T...,..:,0 ~.. 0 l. ' 5 Iii u, Ma69ws A&JU'nllQ 1 o.:u l 0.01 lcul1rnu9ed J, 10 ~ om O.(IJ a Market target: Countries like Japan, Singapore, UK and India have actually limited space to install large ground mounted PV panels. Several projects are emerging in these countries; the biggest one project is a 150 MWp installation in Anhui province by our partner company Major Market Players o Ciel & Terre, France; o Pristine Sun LLC ; o LG CNS, South Korea; o Yingli Solar ; o Sunfloat, Netherlands; o KYOCERA Corporation etc

4 Floating Solar Technology An Expedient Alternative Various advantages of floating solar PV plants over ground installations: Ever increasing power demand & depletion of fossil fuels. Availability of land A big concern. Planning to put a floating PV in dam reservoirs, it can make better use of the reservoir surface, which is anyway lying idle Cooling of Solar panels which makes modules more efficient thereby producing additional generation Tracking - The entire system can easily and cheaply rotate Algal bloom - Reduced sunlight penetration lowers the potential for blue-green algae growth. Evaporation - The increased shading reduces evaporation and saves water Floating solar PV power project is an emerging concept which is unfurling both in India and Globally. This can be established on all types of water bodies like lakes, saltwater lakes, reservoirs, irrigation ponds, dams, rivers etc.

5 Advantages of Floating Solar Technology No costs related to land acquisition Effective natural evaporative cooling mechanism for operational efficiency Possibility of low cost Azimuthal tracking - improves plant load factor (PLF) Low cost civil structure Provides vast, level, hindrance free surface for efficient tapping of solar energy Ability to merge as hatcheries for fish inhabiting the area and Reduce algae growth Reduction in trans evaporation- beneficial for large thermal power plants Water and energy balance with and without floating solar installations This concept is innovative because, about 70% of the earth s surface is covered with water!

6 Working Methodology Floating Solar PV A majority of the installations utilised a floating pontoon constructed either from fibre-reinforced plastic (FRP), Medium Density Polyethylene (MDPE) or Ferro-cement, High-Density Polyethylene (HDPE). The solar PV modules were supported on these pontoons through the use of metal structures and were inclined in a majority of cases to maximise the solar incidence.

7 Major Components of Floating Solar PV Plant Solar PV Modules Central/String inverters Module Support System Pontoon/Floating Structure Mooring System Grid connect equipment SCADA Cables & connectors Transformers

8 Major Components of Floating Solar Mooring/Anchoring System A mooring refers to any permanent structure to which a floating structure may be secured. A floating structure is secured to a mooring to forestall free movement of the floating structure on the water. An anchor mooring fixes a floating structure s position relative to a point on the bottom of a waterway without connecting the floating structure to shore. Mooring System (Bottom Anchoring) The anchoring system design is usually composed of: Aluminium spreader bars that enable the connection of the mooring lines to the island and spread the load through the two connection tabs of the floats. Cables to link spreader bars to anchors (sized taking into account water level variation). Chains at the end of the cables to adjust length. Main and secondary float rows (without PV panel) to secure buoyancy during harsh winds. Anchors to moor the island on the bottom or on shores in order to withstand wind loads and to reduce movement of the island on the water surface. Gensol Group

9 Key Design Features of Floating solar PV Major Key Design Features of Floating Solar PV are enlisted below: Material used should be completely non-toxic, resistant to salt water and alkalis acids, UV rays resistant and completely recyclable. It should easily adapt to changes in water level in reservoirs. The floating material entailed would be completely recyclable. The structures should withstand high temperature variation from -60 C to 80 C. Long life time that is 25 years withstand capability under water. Properties of High-density polyethylene (HDPE): Resistant to ultra violet radiation & corrosion: The structures are made of HDPE through blow mold manufacturing process. Due to their highly resistant composition, it can withstand for more than 20years. Extreme wind resistant: HDPE Structures floating solar power can withstand up to 118 m/hr winds Safe mounting & maintenance: It has been designed to be easily and quickly deployed. The secondary floats allow easy access to the panels for maintenance and cleaning. Cost-effective: Cost is less per module compared to zinc coated stainless steel structures. The other manufacturing benefits of HDPE structures are easy to install, i.e. easy to adapt to any electrical configuration. Scalable from low to high power generation, no need of heavy equipment for installation of HDPE structures. Recycling is possible for HDPE materials.

10 Source : Floating solar PV Project Case Studies (1/4) FLOATOVOLTAIC Solar Array Floatovoltaics Te chnology is a closed foam filled HDPE plastic resistant to corrosive environment, engineered to withstand 85 MPH winds and a minimum of 12 wind generated waves. Structural steel frame is galvalume and hotdip galvanized coated and designed specifically to minimize wear in fresh water environments. Proprietary mooring system distributes the loads to minimize point loading and wear Project Partners Far Niente Winery Owner SPG Solar & Thompson Technology Industries (TTI) System Installer Sharp Solar Solar Panel Provider Project Details Capacity 400 kw/ kwp Total Acreage 100 Acres Modules 208 Poly Cry. modules with 13% effi. Inverter - 1 SatCon AE PV-A (480V)

11 Floating solar PV Project Case Studies (2/4) India s First 10 kw Floating Solar Power Plant West Bengal Key Features of the project The solar power facility was designed using 1kW fibre glass PV modules to produce a minimum of 14MWh of solar power annually. The floating mechanism functions successfully with the system anchored firmly to the bottom of the lake and connected to the grid using submersible cables. 1) Location Rajarhat,West Bengal Arka 2) Module Type- Eldora Prime Series Polycrystalline,250 Wp (40 Nos) Renewable 3)Inverter Type Kaco made inverter Energy College 4) Space Coverage Acres Installation Installer Type 5) Annual Energy Yield kwh 6) CO2 Savings Tons/Yr Vikram Solar Grid Ltd Connected ia/ Owner

12 Floating solar PV Project Case Studies (3/4) 10kWp Prototype in Kerala Adtech supported KSEB (Kerala State Electricity Board) in the development of a 10kWp prototype in the year This prototype is currently actively generating in the Banasura Sagar Dam in Wayanad District of Kerala. This prototype project was made using Adtech s licensed Laminated Ferrocement Technology (LFT) Project Partners Kerala State Electricity Board Owner Vatsa Energy System Installer Adtech Systems Floating Technology Provider Project Details Capacity 10 kwp Total Acreage 10,000 sq.ft Modules 40 Poly Cry. modules with 15% effi. Inverter - 1 Delta (480V)

13 Floating solar PV Project Case Studies (4/4) 0.5MWp Floating Project in Kerala Adtech built India s largest commissioned floating solar plant for KSEB (Kerala State Electricity Board).This project is of 0.5Mwp capacity and is currently actively generating in the Banasura Sagar Dam in Wayanad District of Kerala. This prototype project was made using Adtech s licensed Laminated Ferrocement Technology (LFT) Project Partners Kerala State Electricity Board Owner Adtech Systems System Installer Adtech Systems Floating Technology Provider Project Details Capacity 500 kwp Total Acreage 55,000 sq.ft Modules 1391 Poly Cry. modules with 15% effi. Inverter - 17 ABB (480V)