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Solar energy proposal by MGE

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Solar energy proposal by MGE

  1. 1. RENEWABLE ENERGY PROPOSAL MEGA TECHNOLOGY GREEN ENERGY JOINT STOCK COMPANY "Local energy production: Solar thermal energy and Photovoltaic solar energy" Copyright © 2015 MGE Joint Stock Company All rights reserved
  2. 2. Solar Energy Why are we interested in using solar energy? Copyright © 2015 MGE Joint Stock Company All rights reserved
  3. 3. Solar Energy Sunlight provides the energy source that powers the Earth’s climate and ecosystem. Harnessing this energy for hot water and electrical power could provide a renewable, low carbon energy source, and presents an attractive way of mitigating climate change. Copyright © 2015 MGE Joint Stock Company All rights reserved
  4. 4. Solar Energy How can we use solar energy? Copyright © 2015 MGE Joint Stock Company All rights reserved
  5. 5. Solar Energy We can use solar energy to produce Energy as below • Solar Thermal Energy - to provide heat • Photovoltaic Energy - to generate electricity Copyright © 2015 MGE Joint Stock Company All rights reserved
  6. 6. Solar Thermal Energy Solar thermal electric energy generation concentrates the light from the sun to create heat, and that heat is used to run a heat engine, which turns a generator to make electricity. The working fluid that is heated by the concentrated sunlight can be a liquid or a gas. Different working fluids include water, oil, salts, air, nitrogen, helium, etc. Different engine types include steam engines, gas turbines, Stirling engines, etc. All of these engines can be quite efficient, often between 30% and 40%, and are capable of producing 10's to 100's of megawatts of power. Copyright © 2015 MGE Joint Stock Company All rights reserved
  7. 7. Photovoltaics (PV) Technology Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Copyright © 2015 MGE Joint Stock Company All rights reserved
  8. 8. Photovoltaics (PV) Technology In the world of photovoltaic (PV) solar power, there are several types of semiconductor technologies currently in use for PV solar panels. Two, however, have become the most widely adopted: Crystalline Silicon Thin Film Copyright © 2015 MGE Joint Stock Company All rights reserved
  9. 9. Crystalline silicon Crystalline silicon panels are constructed by first putting a single slice of silicon through a series of processing steps,creating one solar cell. These cells are then assembled together in multiples to make a solar panel. Crystalline silicon, also called wafer silicon, is the oldest and the most widely used material in commercial solar panels. There are two main types of crystalline silicon panels: Monocrystalline Silicon Multicrystalline Silicon Copyright © 2015 MGE Joint Stock Company All rights reserved
  10. 10. Thin film Thin film solar panels are made by placing thin layers of semiconductor material onto various surfaces, usually on glass. The term thin film refers to the amount of semiconductor material used. It is applied in a thin film to a surface structure,such as a sheet of glass. Contrary to popular belief, most thin film panels are not flexible. Overall, thin film solar panels offer the lowest manufacturing costs, and are becoming more prevalent in the industry. There are three main types of thin film used: • Cadmium Telluride (CdTe) • Amorphous Silicon • Copper, Indium, Gallium,Selenide (CIGS) Copyright © 2015 MGE Joint Stock Company All rights reserved
  11. 11. Planning a PV project Building-up a large-scale photovoltaic installation requires several steps and preliminary surveys in order to confirm the reliability of the project. Each phase is essential and it takes around 6 months to achieve the project. Copyright © 2015 MGE Joint Stock Company All rights reserved
  12. 12. Project Overview PHASES PHASE 1: PRE-FEASIBILITY STUDY PHASE 2: PV SYSTEM DESIGN PHASE 3: BUSINESS PLAN PHASE 4: PERMISSION PLANNING PHASE 5: SELECTION OF SYSTEM / SUPPLIER PHASE 6: SYSTEM INSTALLATION PHASE 7: MANAGEMENT OF THE INSTALLATION PHASE 8: END-LIFE OF THE INSTALLATION Copyright © 2015 MGE Joint Stock Company All rights reserved
  13. 13. PHASE 1: PRE-FEASIBILITY STUDY That’s the first step of the project. When the decision is made to invest in a photovoltaic system, it is required to collect all the useful information in order to identify the interest and the feasibility of the project. A- Site selection One of the great advantages of solar photovoltaic is the simplicity of its installation, and a certified installer will do most of the work for you. However, essential criteria are required: -Orientation: Ideally, the surface should be south facing at a 30-40° angle. Most farm and industrial building roofs are not at this angle, but the mounting system can be adjusted to provide the output needed. Copyright © 2015 MGE Joint Stock Company All rights reserved
  14. 14. PHASE 1: PRE-FEASIBILITY STUDY -Location: Avoid shade, although solar systems do not need direct sunlight to generate electricity, they will work much better the more they receive. The South of England is best suited because it is generally sunnier, but most parts of England have sufficient daylight to make it viable. -Presence of grid utility to feed the electricity network authority. The production of electricity will be sold to the national grid. Suitable electrical installation must be close the installation and meet local utility interconnection requirements. - The photovoltaic system size depends on the project budget, the size of the roof (for roof mounted systems) or the land (for ground mounted systems) and on the type of solar modules used. Copyright © 2015 MGE Joint Stock Company All rights reserved
  15. 15. PHASE 1: PRE-FEASIBILITY STUDY B- Collect of information and technical surveys Before moving forward in the project, two things to do: - Collect the useful information: geographical position, building or land dimensions, sun irradiation, cadastre, maps, pictures, etc. - Topographical, building structure and environmental impact surveys. Copyright © 2015 MGE Joint Stock Company All rights reserved
  16. 16. PHASE 2: PV SYSTEM DESIGN The photovoltaic installation design is done by an renewable energy consultancy specialized in photovoltaic system design and able to provide the most appropriate system based on the following criteria: -Sunlight and weather resistant materials for all outdoor equipment.-Array location to minimize shading from foliage, vent pipes, and adjacent structures.- System design in compliance with all applicable building and electrical codes.- System design with a minimum of electrical losses due to wiring, fuses, switches, and inverters.-System design meets local utility interconnection requirements. -Roof area or other installation site is capable of handling the desired system size. Copyright © 2015 MGE Joint Stock Company All rights reserved
  17. 17. PHASE 2: PV SYSTEM DESIGN A- Estimating system output PV systems produce power in proportion to the intensity of sunlight striking the solar array surface. The intensity of light on a surface varies throughout a day, as well as day to day, so the actual output of a solar power system can vary substantial. There are other factors that affect the output of a solar power system. These factors need to be understood so that the Municipality has realistic expectations of overall system output and economic benefits under variable weather conditions over time. -Calculate your roof size to determine the maximum size of your PV system -Analyze the orientation of your roof, incline and shading to determine how much sunlight your system is able to capture and if your system operates near its rated efficiency -Solar radiation of your geographical region Copyright © 2015 MGE Joint Stock Company All rights reserved
  18. 18. PHASE 2: PV SYSTEM DESIGN B- Select the mounting system A wide range covering all possible scenarios of photovoltaic installation, from the building integration to the PV plant on ground. Ground mounting system On roof mounting system BIPV Copyright © 2015 MGE Joint Stock Company All rights reserved
  19. 19. PHASE 2: PV SYSTEM DESIGN - Roof mount is often the most convenient and appropriate place to put the PV array is on the roof of the building. The PV array may be mounted above and parallel to the roof surface with a standoff of several inches for cooling purposes. Sometimes, such as with flat roofs, a separate structure with a more optimal tilt angle is mounted on the roof. - Ground mounted solution that can be used in almost all kinds of situations, from residential to large commercial, right through to utility scale. - Building-Integrated PV Array (BIPV) is another type of system allows easy integration of framed photovoltaic modules into the roofs of buildings, old and new, whatever the existing structure. This smart and innovative system has been developed to be a versatile integrated solution. Copyright © 2015 MGE Joint Stock Company All rights reserved
  20. 20. PHASE 3: BUSINESS PLAN A- Feed-in-tariff EVN is responsible for buying the whole electric output from solar power projects, with the electric buying price at the point of electricity receipt to be 1,800 Vietnamese dong/kwh and 3,500 Vietnamese dong/kWh (equivalent to 12 U.S. cents/kWh and 16.7 U.S. cents/kWh). For solar power projects installed on the roof of a house connected to the grid, if the electricity generated is more than that consumed, the difference to be bought at the point of electricity receipt is 3,150 Vietnamese dong/kWh (not including VAT, equivalent to 15 U.S. cents/kWh). This price will be adjusted based on the fluctuation rate between the Vietnamese dong and U.S. dollar. If the electricity generated is less than that consumed, the electricity received from the grid must be paid at the normal commercial price charged by the electricity purchaser. Scale Generation tariff Export tariff Tariff life time 2010/11 2011/12 2012/13 4kW (new building) 4kW (retrofit) 4-10kW 10-100kW 100kW-5MW Stand-alone system Copyright © 2015 MGE Joint Stock Company All rights reserved
  21. 21. PHASE 3: BUSINESS PLAN B- What to consider for solar PV finance: - Generation Tariff: the price your energy supplier gives you for every unit of electricity produced, irrespective of whether you use it or export it. - Export Tariff: This can be more depending on supplier and if you enter into a power purchase agreement. As an interim measure, payment of export tariffs to generators of 30kW or less will be made on the basis of deemed or estimated exports. After EVN , electricity purchase price increase at least 5% every year - Lower bills: account for the reduction in your energy bills if you use your own power. Copyright © 2015 MGE Joint Stock Company All rights reserved
  22. 22. PHASE 3: BUSINESS PLAN B- What to consider for solar PV finance: - Index linked: tariffs are linked to the Retail Price Index for electricity meaning your tariff will keep pace with inflation. - Tariff digression: the earlier you invest in renewable technologies, the greater the financial benefits. After 2012 the tariffs start to reduce, owing to the projected expansion of the PV market (up to 250MW of new solar capacity by 2011, compared to 22MW in 2009) which is expected to lead to lower technology costs. - Capital grants: the scheme generally prohibits recipients of grants from receiving FITs as this would mean they get a double benefit. Copyright © 2015 MGE Joint Stock Company All rights reserved
  23. 23. PHASE 4: PERMISSION PLANNING A- Documentation -Permission to install is dependent on the view of the local planning authority that will make a decision based on the views of the local planning committee. -Environmental Impact Assessment: an EIA would be required for an installation. -Planning permission: A Planning Application will need to be submitted with necessary supporting documents. -Planning decision: local Authority validates application and requests any missing documents Recommendation to Committee if not delegated and/or recommendation
  24. 24. PHASE 4: PERMISSION PLANNING B- Support scheme Check if installations above X kWp , must be registered on Support structures process before an application is made to an Electricity Supplier. All suppliers with more than 50k domestic customers must offer FITs, smaller suppliers can volunteer to do so. A list of Licensees can be found on the Ofgem website. A generator can assign their right to FITs payments to a third party (nominated recipient) by way of bilateral agreement. C- Grid connection permit The connection of the solar PV system requires any grid connection point will need to be completed based on regulations Copyright © 2015 MGE Joint Stock Company All rights reserved
  25. 25. PHASE 5: SELECTION OF SYSTEM / SUPPLIER A- Components of a PV system The main components of a PV system include: - Solar panels, either mounted on the roof or the ground, or replacing the roof material. - Inverters, which turns the electricity from the panels into a form you can use for your home or business. Convert DC power into AC power. - System Monitoring provides feedback to the customer about the power and energy metering. Without proper metering the customer will never know whether the system is operating properly or not. - Mounting systems, on-roof, grounded or BIPV. - Cable and connectors, different length and section. Copyright © 2015 MGE Joint Stock Company All rights reserved
  26. 26. PHASE 5: SELECTION OF SYSTEM / SUPPLIER B- Selection criteria When choosing a supplier and specifying a PV system, the following criteria help the decision-making process: - Company profile, reputation and references in similar projects - Technical advantages and innovative products - Quality and certification (such as MCS) - Competitiveness - Warranty and insurance Copyright © 2015 MGE Joint Stock Company All rights reserved
  27. 27. PHASE 6: SYSTEM INSTALLATION A - Set up the photovoltaic generator The D-Day has started. After months and months, the installation begins and can go on for days depending of the number of modules to install. B - Wiring and commissioning That’s the final steps to the commissioning. All the installation is wired. After a final inspection, the installation will be ready to produce electricity. C - Grid connection There will be a detailed procedure for this set out or referred to in the "construction and adoption" agreement which is not standard. There is no "legally set" process for testing and acceptance followed by adoption. Copyright © 2015 MGE Joint Stock Company All rights reserved
  28. 28. PHASE 7: MANAGEMENT OF THE INSTALLATION A - Monitoring system With the decision for a PV system, you also decide for a long-term source of income. It means that the system must function smoothly at all times. The best way to manage your PV installation and your production of electricity is to use monitoring devices: Communication hub. It continuously collects all the data from the inverters on the system side, thereby keeping you informed of the System’s status at any given time: system monitoring, remote diagnosis, data storage and visualization of the production of electricity.
  29. 29. PHASE 7: MANAGEMENT OF THE INSTALLATION A - Monitoring system Web portal for professional management. Whether for a small home system or a large solar park, central administration and monitoring of several PV plants saves time and money. Plant operators, installers and inverter manufacturer service technicians have access to key data at any time, from any location. The yields of all inverters in a plant are compared fully automatically, permitting detection of even the smallest deviations. Large-scale display. A large-format display visualises yield, performance and CO2 reduction of PV systems in large, luminous figures. it derives the display data from the communication hub via the Ethernet interface. Copyright © 2015 MGE Joint Stock Company All rights reserved
  30. 30. PHASE 7: MANAGEMENT OF THE INSTALLATION B - Maintenance Even if maintenance is minimal, there are no moving parts in the installation, so it is almost maintenance free. However, it is required to regularly inspect the installation: - Keep modules clean: If the PV installation is located in a dusty place and it doesn’t rain frequently, it is recommended to clean the modules (e.g. birds dejection). - Connectors: check if all the connectors are properly plugged and if no scratch or damage appear on cables. - Protection devices: check if all the protection devices are in operation. - Mounting system: check if no damage on the installation racks. - Electrical measurement on specific parts (inverters). Copyright © 2015 MGE Joint Stock Company All rights reserved
  31. 31. PHASE 8: END-LIFE OF THE INSTALLATION A - More than 25 years of production Depending on the feed-in-tariff scheme and the right to run the installation, the PV system can still run after 25 years. Indeed, the end of the FIT contract between the installation’s owner and the grid authority, doesn't mean the modules will stop produce electricity. The production of electricity will be use for your own consumption and will allow you to reduce your electricity bills. B - Decommissioning In some cases, land or roof are a concession for 25 years, and it will be required to dismount the full PV system. In that case, at the construction of the system, special material are used in order to recycle them after the life-time (e.g. use of ground screws instead of concrete foundation to avoid ground contamination). Copyright © 2015 MGE Joint Stock Company All rights reserved
  32. 32. PHASE 8: END-LIFE OF THE INSTALLATION C - Recycling The PV industry is working to create truly sustainable energy solutions that take into consideration the environmental impacts of all stages of the product life cycle, from raw material sourcing through end-of-life collection and recycling. Although the PV industry is young, leading manufacturers embrace the concept of producer responsibility and have come together to put in place a voluntary, industry-wide take-back and recycling programme. By addressing future recycling needs now, it can be offered a truly sustainable energy solution today to help prevent climate change tomorrow. Copyright © 2015 MGE Joint Stock Company All rights reserved
  33. 33. Copyright © 2015 MGE Joint Stock Company All rights reserved Reasonable for RE development in Vietnam*  Sustainable development  Challenges in Power generation  Increasing coal import for 2015-2030  Increasing electricity import  Exhausting of hydro power resource  Greatly fluctuated price of fossil fuel  High potential on RE resources in Vietnam  Decreasing trend of production cost  Local manufactures??? Source: MOIT VIETNAM 2015
  34. 34. Copyright © 2015 MGE Joint Stock Company All rights reserved Other supporting mechanisms for WPP* • Import tax: Import tax exemption for equipment which is not domestically manufactured. • Corporate income tax: ◦ Tax rate: 10% for the first 15 years, possible extension up to 30 years ◦ Tax exemption for the first 4 years, 50% reduction for next 9 years • Fast depreciation: 1.5 times faster than normal projects. • Exempt land-use tax/charges. • Exempt environmental protection fees. Source: MOIT VIETNAM 2015
  35. 35. Copyright © 2015 MGE Joint Stock Company All rights reserved RE share of electricity generation* - For small hydro, wind, solar and biomass to 4.5 % of totalled installed generation capacity by 2020 and 6.0 % by 2030; - Wind power generation: up to 1 GW by 2020, 6.2 GW by 2030; - Biomass energy: up to 500 MW in 2020 and 2 GW by 2030; - PV Power (draft): up to 2000 MW for large PV solar farm; up to 4000 MW for solar rooftop RE electricity supply for remote areas, islands by RE off-grid Projects - 21,300 households; - Investment capital 1,481 bill VND or 70.5 mill USD. Source: MOIT VIETNAM 2015
  36. 36. Copyright © 2015 MGE Joint Stock Company All rights reserved Regulations and supporting mechanisms for RE Development*  Decision No. 37/2011/QD-TTg issued by the Prime Minister dated 29/6/2011on mechanisms to support development of wind power projects.  Power purchase responsibility: EVN must take and pay electricity generated from WPP  FIT for grid-connected wind power project: 7.8 US$/kWh (VAT exclusive; subject to VND/USD fluctuation)  Circular No. 32/2012/TT-BCT dated 12/11/2012 promulgating implementation of WPP development and standard PPAs for wind power projects.  Procedures for development of wind power projects  Application for price support from VEPF.  Registration sequence for the development of off-grid wind power projects.  SPPA for wind power projects  Circular No. 06/2013/TT-BCT dated 8/3/2013 promulgating content, order, procedure for formulation, appraising and approving wind power planning Source: MOIT VIETNAM 2015
  37. 37. Copyright © 2015 MGE Joint Stock Company All rights reserved

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