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World Institute of Sustainable Energy

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Title: World Institute of Sustainable Energy


1

Overview of RENEWABLES SOLAR TECHNOLOGIES
World Institute of Sustainable Energy 07
February 2009, GERC, Ahmedabad
2
RENEWABLES THE BIG BUSINESS OPPORTUNITY
  • Peak oil, price volatility of fossil fuels,
    projected depletion
  • Renewables changing from non-conventional to
    becoming mainstream
  • Reducing prices, Low Risk and Assured Returns
    for renewables, will be cost competitive with
    conventional power in near future
  • All large MNCs have entered or are entering
    renewables sector
  • Wind Power CAGR 25
  • Solar Power CAGR 30-40
  • Investment in renewables in 2007 was 100 billion
    (including corporate take overs)
  • Increasing venture capital flow into the sector
  • Maximum global research funding flowing to
    renewables
  • Renewables is and will be even bigger business
    in the future

3
RENEWABLES GLOBAL SCENARIO

Renewables represent 5 of global power capacity
3.4 of global power generation.
(Figures exclude large hydropower, which itself
was 15 of global power generation)
71 Billion is investment in power generation.
Total R.E. Investments add upto 100 billion
4
RENEWABLES IN INDIA
Industry estimate Assuming only 4 of
Indian desert area of 2,00,000 sq. km
(Guj, Raj)
5
Wind Power
6
WIND POWER LEADS THE RENEWABLE REVOLUTION IN INDIA
  • Wind Power Mainstay of Renewables in India
  • Mature Market Technology, various project
    developers in India
  • 9645 MW installed capacity in India as on Dec.
    08 5th Largest in the world, Third largest
    annual market after USA China (1800 MW in
    2008)
  • Large untapped potential in India 65,000
    100,000 MW
  • Technologies Synchronous and Asynchronous
    Generators (with and without gears), New hybrid
    technology to be introduced
  • Turbine unit sizes 500 kW to 1.65 MW, may go up
    to 2.0 MW in near future
  • Leading States Tamil Nadu 4200 MW, Maharashtra
    1800 MW, Gujarat 1400 MW
  • Costs Rs 6-6.5 Cr / MW subject to project
    size, location, technology

7
TARIFF / RPS/ GRID ISSUES
  • Project costs were going up due to rise in
    material costs, likely to come down because of
    recession, reduced demand
  • Coal, Steel and other metal prices increased
    substantially during last two years ( gt 15
    increase)
  • Inflation touching 12 , recently dropped to 5
    to 6
  • Interest rates going up fast touching to 12-13
  • Project viability important, Tariff revision was
    must
  • Conventional power projects costs also increased
    during last 2-3 years
  • Grid expansion through proper planning is the key
    for future capacity addition
  • Global studies shows, NO TECHNICAL LIMITS for
    penetration, 100 renewable grid possible
  • Forecasting services available, Need to be
    adopted in India
  • BOOK RENEWABLE ELECTRICITY AND THE GRID (2007),
    Earthscan publications
  • Higher RPS must be considered

8
SOLAR POWER
9
TYPES OF SOLAR POWER
  • Solar Thermal Power Generation
  • Concentrating Type ( CSP)
  • - Line Focusing system
  • - Parabolic Trough Systems
  • - Fresnel Trough Collector
    Systems
  • - Point Focusing
  • - Dish Stirling Systems / Concentrating Dish
  • - Solar Tower Plants using central
    Receiver System
  • Non- concentrating Type
  • Solar Updraft Tower Power Plants Solar Chimney
  • Solar Pond Power Plants

10
A BRIEF LOOK AT CSP AND CPV
  • Two emerging breakthrough solar technologies
  • Solar thermal electric power generation (CSP)
    Total 430 MW in operation
  • Tower (11 MW in Operation in Spain) 03
  • Trough (419 MW in Operation in USA)- 97
  • Dish (Centralized and Stand Alone)
  • Linear Fresnel ( few MW under construction)
  • 11000 MW under construction or planned, globally
  • Solar Photovoltaics
  • Conventional Silicon based (Crystalline and thin
    film)
  • Concentrating PV (CPV) The latest to emerge on
    the scene

11
CONCENTRATING SOLAR THERMAL POWER (CSP)
  • Has the possibility of supplying base and peak
    load due to storage option
  • Lower costs than PV/CPV
  • Storage options greatly increase Plant Load
    Factor and dispatchable electricity
  • Over 11,000 MW CSP in development throughout the
    world
  • Bulk of Projects under development in USA /
    Europe
  • Feed-in Tariffs announced in few countries
  • Eg Spain - 0.27 Euro / kWh for 25 years with
    adjustment for inflation. Re-look at Tariff once
    500 MW installed.
  • In India, over 500 MW Thermal Power project
    proposals with MNRE under the new incentive
    scheme.
  • Max Rs 10/kWh incentive under MNRE policy
  • About Rs 13/kWh as tariff including SERC tariff

12
CSP - TOWER TECHNOLOGY
PS 10 , Seville, Spain
13
CSP - TROUGH TECHNOLOGY, PROJECTS IN USA, SPAIN
14
CSP - DISH TECHNOLOGY (CENTRALIZED AND STAND
ALONE)
Dish-Sterling Engine
15
CSP - LINEAR FRESNEL TECHNOLOGY, ALMERIA AND
AUSTRALIA
16
11,000 MW OF CSP CURRENTLY UNDER DEVELOPMENT
  • USA, Mexico, Spain, Italy, Portugal, France,
    Israel, Egypt, Algeria, Greece, Morocco, SA,
    China, Australia, Iran, UAE
  • Conservative projection of global installation
    targets 5000 MW by 2015 and 40000 MW by 2020
  • Already crossing the target of 5000 MW set for
    2015

17
PROJECTED COST REDUCTION IN CSP
  • CSP Electricity Cost as a Function of Cumulative
    Installed Capacity

Huge electricity costs reduction potential in
immediate future
18
MNRE / SERC THERMAL INCENTIVE/TARIFF
MNRE has a notional cap of Rs 13/kWh as the
maximum combined revenue inclusive of tariff and
incentive
19
SOLAR POWER PV TECHNOLGY Grid connected
20
SOALR CELL TECHNOLOGIES
21
CONCENTRATING PV (CPV)
  • CPV Latest Emerging PV technology
  • Uses Space quality solar cell with high
    efficiency and optical lenses for concentration (
    High Concentration Ratios 200-1000)
  • Very High Efficiency ( 25-30), higher energy
    output compared to PV ( 12 -15)
  • 3 MW sanctioned in Puertallano, Spain by ISFOC.
    Partly commissioned and under construction. First
    CPV project in the world.
  • More than 20 MWp production line in Pipe Line
  • Also holds promise for cost reductions in the
    very near future.
  • (Disadvantage is no possibility of storage)

Optics for concentrating Sunlight, HCPV
22
PV- SILICON (CONVENTIONAL) NELLIS SOLAR PLANT 14
MW, NEVADA
23
CONCENTRATING PV (LOWCPV AND HIGHCPV)
HCPV Testing
Seville, 1.2 MW LCPV Plant
24
COST REDUCTION LEARNING CURVE AND POSSIBILITIES
IN CPV
Energy Costs in AUS /MWh
25
WORLDS FIRST CPV INSTALLATIONS, PUERTALLANO,
SPAIN
26
MNRE / SERC PV INCENTIVE/TARIFF
MNRE has a notional cap of Rs 15/kWh as the
maximum combined revenue inclusive of tariff and
incentive
27
Thanks!
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