Plataforma Solar de Almer Almer a a: : Plataforma Solar de The - - PowerPoint PPT Presentation

plataforma solar de almer almer a a plataforma solar de
SMART_READER_LITE
LIVE PREVIEW

Plataforma Solar de Almer Almer a a: : Plataforma Solar de The - - PowerPoint PPT Presentation

CERN Academic Training Programme 2005-2006 Towards Sustainable Energy Systems ? Geneve, 28-31 March, 2006 Plataforma Solar de Almer Almer a a: : Plataforma Solar de The European Solar Thermal Test Centre The European Solar Thermal Test


slide-1
SLIDE 1

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

CERN Academic Training Programme 2005-2006 Towards Sustainable Energy Systems ? Geneve, 28-31 March, 2006

Plataforma Solar de Plataforma Solar de Almer Almerí ía a: : The European Solar Thermal Test Centre The European Solar Thermal Test Centre

Diego Martínez Plaza diego.martinez@psa.es Plataforma Solar de Almería

slide-2
SLIDE 2

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

BASIC DATA BASIC DATA

  • Goal

Goal: : R&D in potential industrial applications of concentrating solar R&D in potential industrial applications of concentrating solar thermal energy and solar photochemistry. thermal energy and solar photochemistry.

  • Location:

Location: Distributed over 103 hectares in the Distributed over 103 hectares in the Tabernas Tabernas Desert ( Desert (Almer Almerí ía a). ).

  • Annual Budget:

Annual Budget: Approximately 5 M Approximately 5 M€ €, of which 40% come from own income. , of which 40% come from own income.

  • Human Resources:

Human Resources: Approximately 100 persons, 18 of them in Madrid. Approximately 100 persons, 18 of them in Madrid. Auxiliary personnel represent 60%. Auxiliary personnel represent 60%.

slide-3
SLIDE 3

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

DIRECTORATE GENERAL DEPUTY DIRECTORATE-GENERAL

  • C. López

NUCLEAR FISSION

  • E. González

RENEWABLE ENERGY

  • M. Romero

COMBUSTION & GASIFICATION

  • J. Otero

TECHNICAL OFFICE OPERATION PHYSICS TJ-II Energy Socio-economics

  • R. Sáez

PLATAFORMA

  • S. ALMERÍA
  • D. Martínez

CEDER E.T.Gónzalez TECHNICAL OFFICE

  • M. Vila

UNITS

FUSION NATIONAL LABORATORY

  • J. Sánchez

DEPARTMENT OF ENERGY

  • C. López

DIVISIONS

slide-4
SLIDE 4

Concentration and thermal conversion Concentration and thermal conversion

0.25 0.5 0.75 1 1000 2000 3000 4000 Temperatura (K) Eficiencia del sistema

C=1.000 5.000 10.000 20.000 Carnot

0.25 0.5 0.75 1 1000 2000 3000 4000 Temperatura (K) Eficiencia del sistema

C=1.000 5.000 10.000 20.000 Carnot

Efficiency of an ideal solar thermal power system (optical concentrator, receiver and power conversion unit)

OPTICAL CONCENTRATOR OPTICAL CONCENTRATOR RECEIVER RECEIVER FOSSIL BACKUP FOSSIL BACKUP HEAT HEAT STORAGE STORAGE COLD POINT COLD POINT HOT HOT POINT POINT

W W

OPTICAL CONCENTRATOR OPTICAL CONCENTRATOR OPTICAL CONCENTRATOR OPTICAL CONCENTRATOR RECEIVER RECEIVER RECEIVER RECEIVER FOSSIL BACKUP FOSSIL BACKUP FOSSIL BACKUP FOSSIL BACKUP HEAT HEAT STORAGE STORAGE HEAT HEAT STORAGE STORAGE COLD POINT COLD POINT COLD POINT COLD POINT HOT HOT POINT POINT HOT HOT POINT POINT

W W W W

The inherent advantage of STP technologies is their unique integrability into conventional thermal plants: All of them can be integrated as "a solar burner" in parallel to a fossil burner into conventional thermal cycles With thermal storage or fossil fuel backup solar thermal plants can provide firm capacity without the need of separate backup power plants and without stochastic perturbations of the grid. Solar thermal can supply peak power in summer heat periods when hydro and wind are scarce Solar thermal creates jobs in local Small and Medium Enterprises

slide-5
SLIDE 5

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

TEST FACILITIES TEST FACILITIES

1.

  • 1. Central receiver technology

Central receiver technology 5.

  • 5. Solar furnace

Solar furnace 3.

  • 3. DSG Direct steam generation

DSG Direct steam generation 4.

  • 4. Parabolic dish +

Parabolic dish + Stirling Stirling 2.

  • 2. Parabolic

Parabolic-

  • trough collector technology

trough collector technology 7.

  • 7. Water desalination

Water desalination 6.

  • 6. Water detoxification

Water detoxification

1 1 2

  • 8. LECE
  • 8. LECE

8 7 6 5 4 3

slide-6
SLIDE 6

CESA-1

  • Thermal

Thermal power power: 7 MW. : 7 MW.

  • 300

300-

  • heliostat

heliostat field field. .

  • 80 m.

80 m.-

  • high

high tower tower with with 3 3 testing testing platforms platforms. .

  • Testing

Testing area area for for newly newly designed designed heliostats heliostats. .

slide-7
SLIDE 7

CRS: Central Receiver System

  • Thermal

Thermal power power: 2,7 MW : 2,7 MW

  • 111

111-

  • heliostat

heliostat field field. .

  • 43 m.

43 m.-

  • high

high tower tower with with two two testing testing platforms platforms. .

slide-8
SLIDE 8

DCS: Distributed Collector System

  • Thermal

Thermal power power: 1,2 MW : 1,2 MW

  • Heat

Heat storage storage: 5 : 5 MWh MWh

  • Coupled

Coupled to to a MED a MED plant plant: 3 m : 3 m3

3/h

/h

slide-9
SLIDE 9

DISS: Direct Solar Steam

  • Thermal

Thermal power power: 1,8 MW : 1,8 MW

  • Steam

Steam flow flow rate rate: 1 : 1 kg kg/s /s

  • T

T max max = 400 = 400 º ºC C

  • P

P max max = 100 = 100 bar bar

  • 650 m.

650 m.-

  • long

long collectors collectors in in two two rows rows. .

slide-10
SLIDE 10

HTF: Heat Transfer Fluid

  • LS

LS-

  • 3

3 and and EuroTrough EuroTrough collectors collectors in in two two parallel parallel rows rows. .

  • Used

Used for for testing testing of

  • f

components components. .

  • Thermal

Thermal power power: 345 : 345 kW kW

  • Working

Working fluid fluid is is a a synthetic synthetic thermal thermal oil.

  • il.
  • T

T max max: 420 : 420º ºC C

  • Currently

Currently coupled coupled to to a a thermal thermal storage storage testing testing loop loop. .

slide-11
SLIDE 11

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

SOLAR FURNACE SOLAR FURNACE

Tool for achieving high flux and high temperatures ( T > 2000 ºC). Peak flux: 3000 suns. Power: 58 kW. Concentrating area: 98,5 m2. Focus diameter: 23 cm. Gaussian energy profile. Up to now, thermal materials surface treatment applications. New applications: high temperature chemical processes, industrial process heat.

slide-12
SLIDE 12

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

Stand-alone electricity generation (P < 25 kW) for remote sites, with Stirling engines. At the present time, several companies are developing their own first commercial demonstration products (40,000 hours of experience accumulated at the PSA).

  • EURODISH/ENVIRODISH

EURODISH/ENVIRODISH Projects: Design of new dish, price goal of 5,000 €/kWe Other key points: hybridization, automation, reliability.

PARABOLIC DISHES PARABOLIC DISHES

slide-13
SLIDE 13

DISTAL: Dish-Stirling Almeria

  • 6

6 units units / 3 / 3 generations generations

  • Direct

Direct solar solar tracking tracking

  • Thermal

Thermal power power: 50 : 50 kW kW

  • Electric

Electric power power: 10 : 10 kW kW

slide-14
SLIDE 14

DETOX: Detoxification Loop

  • Set

Set of

  • f 6 CPC

6 CPC for for water water detoxification detoxification by UV. by UV.

  • Total

Total volume volume: 405 l. : 405 l.

  • Aperture

Aperture area area: 33 m2 : 33 m2

  • Set

Set of

  • f 4

4 two two-

  • axis

axis tracking tracking PTC. PTC.

  • Working

Working flow flow: :

  • 400

400-

  • 5000 l/h.

5000 l/h.

  • Aperture

Aperture area area: 128 m2 : 128 m2

slide-15
SLIDE 15

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

LECE (Energy Testing of Building Components) consists of 4 16-m3 thermally

insulated test cells with one wall prepared for testing architectural components.

These tests allow component thermal losses and some optical properties as

transmissivity of light, etc., to be evaluated.

This laboratory has been quality-certified by ENAC

LECE: SOLAR ENERGY IN BUILDINGS LECE: SOLAR ENERGY IN BUILDINGS

slide-16
SLIDE 16

Meteo Station

  • Target

Target: : To To become become a a member member

  • f
  • f the

the BSRN. BSRN.

  • Special

Special spectroradiometer spectroradiometer available available: 200 : 200 – – 2500 2500 nm nm, , global, global, direct direct, , diffuse diffuse solar solar radiation radiation. .

slide-17
SLIDE 17

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

MAIN HISTORICAL MILESTONES MAIN HISTORICAL MILESTONES

1977 1977 Birth of the PSA: Beginning of the CESA Birth of the PSA: Beginning of the CESA-

  • 1 and SSPS

1 and SSPS projects. projects. 1981 1981 Solar thermal electricity supplied to the grid for the first Solar thermal electricity supplied to the grid for the first time: CRS time: CRS-

  • SSPS project.

SSPS project. 1985 1985 Merging of the different facilities into the PSA. Merging of the different facilities into the PSA. 1987 1987 Signature of Spanish Signature of Spanish-

  • German Agreement DLR

German Agreement DLR-

  • CIEMAT.

CIEMAT. 1990 1990 Recognition as a Recognition as a ‘ ‘Large European Scientific Installation Large European Scientific Installation’ ’. . 1999 1999 Official inauguration of the direct steam generation Official inauguration of the direct steam generation (DISS) loop. (DISS) loop.

slide-18
SLIDE 18

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

Director

Administration Dept. Director’s Office R&D UNITS PSA MANAGEMENT UNIT Maintenance IT Services Civil Engineering Instrumentation Environmental Applications of Solar Energy Concentrating Solar Systems

ORGANIZATION ORGANIZATION

Operation

slide-19
SLIDE 19

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

SOLAR CONCENTRATING SYSTEMS SOLAR CONCENTRATING SYSTEMS R & D UNIT R & D UNIT

slide-20
SLIDE 20

Zones of interest for deployment of STPP

  • Desserts
  • f

North and South Africa,

  • Mediterranean region
  • Arabian

Peninsula and Near East,

  • Different areas of India,
  • Northwest and central part of

Australia,

  • High plains of Andean Countries,
  • North-East of Brazil,
  • North of Mexico, and
  • Southwest of USA.
slide-21
SLIDE 21

Potential of STPP

  • 1. Global solar radiation on

earth (TWh/year) 240 * 106

  • 2. Dessertic areas

(7% of earth surface) (TWh/year) 16 * 106 3. Solar fraction

  • f

DNI available (70%) (TWh/year) 11,2 * 106

  • 4. Efficiency of CSP plants

(15%) (TWh/year) 1,68 * 106

  • 5. Percentage of area w ith

good infrastructures (1% of dessert areas) (TWh/year) 16,8 * 103

  • 6. World electricity demand

year 2000 (TWh/year) 15 * 103

1% of arid and semi-arid areas are enough to supply annual World demand of electricity

slide-22
SLIDE 22

Solar Solar Thermal Thermal Power Power Plants Plants: 2D : 2D Linear Fresnel reflector

Absorber tube and reconcentrator

Curved mirror Absorber Tube Pipe with thermal fluid Curved mirror

Parabolic troughs

slide-23
SLIDE 23

Solar Solar Thermal Thermal Power Power Plants Plants: 3D : 3D

Solar Receiver Heliostats

Central Receiver

Receiver / Engine Reflector

Parabolic dishes

slide-24
SLIDE 24

The The keys keys for for efficiency efficiency

η = 1- T T

2 1 4

T = σε q

I A P

C Gen R C

∗ = ∗ ∗ = η η η η

slide-25
SLIDE 25

Comparison of technologies

Parabolic troughs Central Receiver Dish-Stirling Power Operation temperature Annual capacity factor Peak efficiency Net annual efficiency 30-320 MW 390-500 ºC 23-50 % 20 % 11-16 % 10-200 MW 565-800 ºC 20-77 % 18-23 % 15-20 % 5-25 kW 750 ºC 25 % 29.4 % 12-25 % Commercial status Technical risk Storage availability Hybrid designs Commercial Low Limited Yes Demonstration Medium Yes Yes Prototypes-demonstration High Batteries Yes Cost kW installed EURO/kW 2 300-2 500 2 500-2 900 5 000-8 000

*When comparing installed costs special attention should be given to Solar Multiple and Design Point values for each project.

slide-26
SLIDE 26

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

PARABOLIC TROUGH COLLECTOR TECHNOLOGY PARABOLIC TROUGH COLLECTOR TECHNOLOGY

Power block Steam generator Auxiliary system Solar collector field

293ºC 390ºC 104 bar / 371ºC

Only commercial CSP technology, so far: 354 MWe in operation at the plants SEGS I to IX, in California. This technology concerns medium-temperature applications: 125º< T < 400ºC Objective: Development of improved parabolic-trough collector components seeking cost reduction and improved efficiency.

slide-27
SLIDE 27

Geneve, 30 March, 2006

Components and principle Receiver tube Parabolic-trough reflector

The Parabolic-trough Collector (PTC)

slide-28
SLIDE 28

Geneve, 30 March, 2006

Typical receiver tube

Steel pipe with selective coating Glass pipe Expansion bellows Glass pin to evacuate the air Vacuum between glass and steel pipes Glass-to-Metal welding Steel pipe with selective coating Steel pipe with selective coating Glass pipe Expansion bellows Glass pin to evacuate the air Vacuum between glass and steel pipes Glass-to-Metal welding

The Parabolic-trough Collector (PTC)

slide-29
SLIDE 29

Geneve, 30 March, 2006

Simplified scheme of a solar power plant with PTCs

Electricity Generation with PTCs

Steam generator

.

Deaerator Reheater Oil expansion tank Auxiliar heater Solar field Steam turbine Condenser Preheater

295 ºC oil 390 ºC oil 104 bar/371 ºC steam

Oil Circuit

17 bar/371 ºC steam

G Superheater Evapoprator Preheater Steam generator

.

Deaerator Reheater Oil expansion tank Auxiliar heater Solar field Steam turbine Condenser Preheater

295 ºC oil 390 ºC oil 104 bar/371 ºC steam

Oil Circuit

17 bar/371 ºC steam

G Superheater Evapoprator Preheater

slide-30
SLIDE 30

Geneve, 30 March, 2006

Solar power plant with PTCs and thermal storage system

Electricity Generation with PTCs

Steam generator

.

Deaerator Reheater Oil expansion vessel Steam turbine Condenser

Preheater Superheated steam Reheated steam

G

Molten salts (hot tank) Solar Field Molten salts (cold tank)

Steam generator

.

Deaerator Reheater Oil expansion vessel Steam turbine Condenser

Preheater Superheated steam Reheated steam

G

Molten salts (hot tank) Molten salts (hot tank) Solar Field Molten salts (cold tank) Molten salts (cold tank)

slide-31
SLIDE 31

The The ‘ ‘Andasol Andasol’ ’ Commercial Commercial Project Project

KJC plants

Andasol is a 50 MW parabolic-trough solar power plants, based on SEGS experience and Eurotrough collector. Andasol has got a 5 M€ subsidy from the EC. Site already selected and rented near Granada.

Turbina de vapor Condensador Precalentador de presión baja

Desaireador

Sobrecalentador Precalentador solar Recalentador solar Generador de vapor Tanque de expansión Depósito de sal caliente Colectores S

  • lares

Depósito de sal fria Almacenamiento de dos tanques de sal

slide-32
SLIDE 32

‘ ‘Andasol Andasol’ ’: : Some Some figures figures

50 MWe Solar Only 7.5 h heat storage Required land (km²) 1.2 Investment cost 240 Mio € Annual electricity production (GWhe ) 181.7 LEC (€/kWhe) 0.15

  • 58 qualified new permanent jobs per plant
  • 1 000 people employed during construction

phase.

ANDASOL 50 MW will avoid:

  • Consumption of 35 920 tons of coal per year.
  • Emission of 89 314 tons of CO2 per year.
  • Emission of 291 tons of NOx per year.
  • 672 EUROTrough collectors
  • 150 m long each
  • 8 m aperture diameter
slide-33
SLIDE 33

45%

Solar Field 45%

7%

HTF System 7%

Breakdown of Investment Cost for a 50MW SEGS

Site Work and I nfrastructure 3%

3%

18%

Other 18%

7%

Services 7%

7%

BoP 7%

13%

Power Block 13%

slide-34
SLIDE 34

Geneve, 30 March, 2006

“F” parallel rows with a series of “N” collectors each

Industrial Process

Solar Thermal Power Plants with PTCs

The Solar Field Configuration

slide-35
SLIDE 35

Geneve, 30 March, 2006

Heat Storage Systems

Thermocline tank Dual Media Storage Tank

slide-36
SLIDE 36

Geneve, 30 March, 2006

State-of-the-Art and Conclusions

  • Parabolic-troughs are the cheapest way to produce electricity with solar energy

Solar Thermal Power Plants with PTCs

  • A specific cost of 0,08$/kWe seems feasible in a medium to long-term
  • Eight SEGS plants currently in operation with a total power of 340 MWe are the

best commercial example of this technology:

  • plant availability > 98%
  • 22% peak efficency
  • annual solar-to-electric efficiency between 14% and 18%
  • Investment cost is within the range 2400 – 4000 $/kWe
  • At present, tax incentives or premiums are required to become profitable
  • Many projects currently underway in Spain, USA, Egypt, Mexico and Morocco
  • DSG technology is expected to become commercially available by 2010
slide-37
SLIDE 37

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

PARABOLIC TROUGH COLLECTOR TECHNOLOGY PARABOLIC TROUGH COLLECTOR TECHNOLOGY

Development of the Direct Steam Generation process (DSG) to replace thermal

  • il with water as the heat transfer fluid in power production plants.
Auxiliary heater S
  • l
a r f i e l d 110 ºC Deaerator Condenser 104 bar, 370 ºC Steam turbine

DSG Plant

Auxiliary heater S
  • l
a r f i e l d 110 ºC Deaerator Condenser 104 bar, 370 ºC Steam turbine

DSG Plant

Auxiliary heater S
  • l
a r f i e l d 110 ºC Deaerator Condenser 104 bar, 370 ºC Steam turbine

DSG Plant

New absorber tubes Heat storage for steam

slide-38
SLIDE 38

Geneve, 30 March, 2006

Comparison between the DSG technology and the HTF (oil) technology

Smaller environmental risks because oil is replaced by water Higher steam temperature (maximun steam temperature with oil = 380ºC) Solar field control under solar radiation transients Unstability of the two-phase flow inside the receiver tubes Temperature gradients at the receiver pipes

DSG uncertainties that have been solved and clarified: Advantages of the DSG technology: The Direct Steam Generation Process

The overall plant configuration is simpler Lower investment and O&M costs Lower pressure losses and parasitics → higher plant efficiency

slide-39
SLIDE 39

Geneve, 30 March, 2006

Water/steam flow pattern configurations

Electricity Generation with PTCs

A A’ Section A-A’

Bubbly Flow

A A’ Section A-A’

Annular Flow

A A’ Section A-A’

Stratified Flow

A A’ Section A-A’

Intermittent Flow Typical two-phase flow pattern map for horizontal pipe

A A’ Section A-A’

Bubbly Flow

A A’ Section A-A’

Annular Flow

A A’ Section A-A’

Stratified Flow

A A’ Section A-A’

Intermittent Flow Typical two-phase flow pattern map for horizontal pipe

slide-40
SLIDE 40

Geneve, 30 March, 2006

Typical plant schemes for DSG and HTF plants

Super-heater Steam generator

.

Deaerator Re-heater Oil expansion vessel Auxiliar heater Solar Field Steam turbine Condenser Oil at 295 ºC Oil at 390 ºC Steam at 104 bar/371 ºC Oil circuit

HTF Plant

Auxiliary heater S

  • l

a r f i e l d Deaerator Condenser Steam turbine

DSG Plant

Water at 115 bar/115ºC Steam at 100 bar/400ºC

slide-41
SLIDE 41

Geneve, 30 March, 2006

The Project INDITEP

(Integration of DSG Technology for Electricity Production)

1. Detail design of a pre-commercial DSG power plant, using the know-how gained in DISS PROJECT OBJECTIVES: Activities planned in INDITEP are the continuation of the DISS project. There are three objectives: PROJECT DURATION AND PARTNERS: Duration: from July 2002 to June 2005 Partners: CIEMAT, DLR, GES, IBERINCO, INABENSA, INITEC, FLAGSOL, FRAMATONE, ZSW The European Commission is giving financial support to INDITEP within the 5th Framework Program (contract nº. ENK5-CT-2001-00540) 2. Development and evaluation of optimised components for DSG (water/steam separators and ball joints), as well as a selective coating stable at 550ºC and a buffer storage unit. 3. Socio-economic study to identify potential market niches for DSG power plants and to asses the integration potential of this technology

slide-42
SLIDE 42

Geneve, 30 March, 2006

The Project INDITEP

1. The Power Block must be robust and reliable. Efficiency is of lower priority for this plant. 2. The size must be: a) big enough to demonstrate commercial feasibility of larger DSG plants b) small enough to limit the financial risk for investors. 3. The DSG solar field will operate in recirculation mode. BASIC REQUIREMENTS Three basic requirements were defined for the design of this first DSG power plant: DETAIL DESIGN OF THE FIRST DSG PRE-COMMERCIAL SOLAR POWER PLANT

slide-43
SLIDE 43

Geneve, 30 March, 2006

Once Through Boiler

Lowest Costs Least complexity Best Performance Controllability ? Flow Stability ?

Injection Process

Better Controllability Flow stability equally good More complex Higher investment costs

Recirculation Process

Better Flow Stability Better Controllability More complex Higher investment costs Higher parasitics

Feed pump Separator T u r b i n e T u r b i n e T u r b i n e Injectors Feed pump Feed pump Recirculation pump Solar Collectors Solar Collectors Solar Collectors

The Three DSG Basic Options

slide-44
SLIDE 44

Geneve, 30 March, 2006

The First DSG Pre-commercial Solar Plant Simplified Scheme of the Power Block with Air Condenser

Power block parameters

Manufacturer KKK Gross power (kWe) 5472 Net power (kWe) 5175 Gross efficiency (%) 26.34 Net efficiency (%) 24.9 Steam turbine

G

Solar field Generator

HP LP

Aero-condenser

P = 65 bar T = 400ºC qm = 26000 kg/h P = 5,6 bar T = 172 ºC qm = 26000 kg/h P = 0,1 bar T = 46 ºC qm = 24000 kg/h P = 85 bar T = 126 ºC qm = 26000 kg/h

Degasifier + Storage water tank

P = 2,44 bar T = 127 ºC qm = 2000 kg/h P = 80 bar T = 115 ºC qm = 26000 kg/h P = 70 bar T = 411ºC qm = 26000 kg/h

Hot air

slide-45
SLIDE 45

Geneve, 30 March, 2006

The First DSG Pre-commercial Solar Plant

Simplified Scheme of the Solar Field

  • Parabola width: 5.76 m
  • Lenght of every collector: 98,5 m
  • Peak Thermal power (Ed=1kW/m2): 25 MW
  • Number of collectors per row: 10 ET-100 collectors
  • Number of parallel rows: 7
  • Total aperture area: 38384 m2

Technical parameters

Power Block

1000 m

  • 126 m

18 m 18 m

  • S

N

slide-46
SLIDE 46

Geneve, 30 March, 2006

kg/s ºC

bar

1,42 153 80 0,07 280

80

1,10 289 73 1,42 290 75,0 kJ/kg 650 2434 1235 2770 1,10 362 71.7 3046 1,17 327 71,6 2937 1,17 411 69,9 3186

Feedwater Water recirculation

0,32 287

73

1273

Water preheating (3 collectors) + boiling ( 5 collectors) Water injector V1 V2

Scheme of a typical row of collectors

The First DSG Pre-commercial Solar Plant

slide-47
SLIDE 47

Geneve, 30 March, 2006

The First DSG Pre-commercial Solar Plant Simulation Results

(Plant electrical net output power: 4,8 MWe) Yearly insolation (beam solar radiation): 2008 kWh/m2 Yearly number of sunlight hours: 3685 hours Yearly number of solar field operating hours: 2559 Yearly net electricity production: 9431 MWh Equivalent full-load operating hours: 1949 hours Solar field average efficiency: between 61% (Summer) and 30% (Winter) Average steam production at the DSG solar field: 5,1 kg/s (70,6% of nominal value)

slide-48
SLIDE 48

Geneve, 30 March, 2006

09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 100 200 300 400 500 600 700 800 900

Radiation Tout Tin Solar Radiation (W/m

2)

Outlet and Inlet Temp. (ºC)

Local time (hh:mm)

10 20 30 40 50 60 70 80 90

Steam Flow*100 (kg/s) Steam Pressure (bar) Pout Flow*100

Steam Production at 60 bar (11/07/2001)

Steam Parameters Control

Steam Production at 100bar (05/07/2001)

10:00 12:00 14:00 16:00 18:00 20:00 100 200 300 400 500 600 700 800 900 1000

Beam solar radiation Inlet temperature Outlet temperature Solar Radiation (W/m

2)

Inlet and Outlet Temperatures (ºC)

Local time (hh:mm)

10 20 30 40 50 60 70 80 90 100 110

Outlet steam pressure (bar) Steam flow *100 (kg/s)

Steam pressure (bar) Steam flow *100 (kg/s)

slide-49
SLIDE 49

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

CENTRAL RECEIVER TECHNOLOGY CENTRAL RECEIVER TECHNOLOGY

Improve the overall economics of solar power tower plants by reducing the costs of the main system components and simplifying O&M procedures.

OBJECTIVES: OBJECTIVES:

CESA 1

This technology concerns high-temperature applications: T > 400ºC

slide-50
SLIDE 50

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

CESA 1

CENTRAL RECEIVER TECHNOLOGY CENTRAL RECEIVER TECHNOLOGY

Development of low-cost heliostats: Prices under 140 €/m2 Reflected beam quality better than 2.4 mrad New stand-alone concepts in wireless communications and photovoltaic energy supply

OBJECTIVES: OBJECTIVES:

Sanlúcar 90 GM-100

slide-51
SLIDE 51

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

CENTRAL RECEIVER TECHNOLOGY CENTRAL RECEIVER TECHNOLOGY

  • Development of volumetric air receivers:

OBJECTIVES: OBJECTIVES:

TSA

  • TSA volumetric receiver, 2.5 MW based on metal

mesh;

  • SOLAIR high-flux, atmospheric-pressure ceramic

receiver (1000ºC) at 250 kW and 3 MW;

  • REFOS pressurized-air receiver (15 bar / 850ºC)

and integration of gas turbine: SOLGATE/HST

  • Development of molten salt receivers
  • Development of super-heaters for water-steam

receivers

slide-52
SLIDE 52

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

SOLAR HYDROGEN: CURRENT PROJECTS SOLAR HYDROGEN: CURRENT PROJECTS

slide-53
SLIDE 53

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

SOLAR HYDROGEN: THE SOLAR HYDROGEN: THE ‘ ‘PDVSA PDVSA’ ’ PROJECT PROJECT

slide-54
SLIDE 54

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

ENVIRONMENTAL APPLICATIONS ENVIRONMENTAL APPLICATIONS OF SOLAR ENERGY OF SOLAR ENERGY AND CHARACTERIZATION AND CHARACTERIZATION OF THE OF THE SOLAR RESOURCE SOLAR RESOURCE R & D UNIT R & D UNIT

slide-55
SLIDE 55

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

CATALYST PHOTONS REACTION

Use of the ultraviolet band of the solar spectrum, not thermal processes.

DETOXIFICATION OF POLLUTED WATER DETOXIFICATION OF POLLUTED WATER

Solar photocatalytic detoxification Projects: SOLARDETOX, LAGAR, ALBAIDA, CADOX, etc. Solar Disinfection Projects: SOLWATER, AQUACAT…..

slide-56
SLIDE 56

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

European AQUASOL project : Its purpose is coupling multi-effect distillation (MED) with a double-effect absorption heat pump and solar technology. Zero waste. Spanish SOLARDESAL Project : Hybrid technology based on solar energy from stationary collector and natural gas.

SOLAR DESALINATION SOLAR DESALINATION

slide-57
SLIDE 57

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

MEASUREMENT AND CHARACTERIZATION OF SOLAR RADIATION MEASUREMENT AND CHARACTERIZATION OF SOLAR RADIATION

Measurement of solar radiation: Development and management of solar radiation databases Methodologies focused on the determination of design parameters in solar systems Calibration of solar radiation specific instruments Characterisation of the solar spectral distribution: Spectral-radiometer for continuous measuring of the spectral content of solar radiation components. Laboratory for spectral calibration Solar radiation calculation from satellite images (spatial distribution): Development of statistical models to estimate the solar radiation Models and visualization of information by using Geographic Information Systems

slide-58
SLIDE 58

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

TRAINING AND ACCESS TRAINING AND ACCESS

Management of the PSA student programme (University of Almería, Leonardo da Vinci, etc.), courses and dissemination activities. European Commission Programmes concerning ‘Access to Large Installations and Mobility of Researchers’.

4 5 9 6

2002

4

Leonardo da Vinci

11

Others

9

UAL – Undergraduate

7

UAL – Doctorate 2003 TYPE OF GRANT

TWO MAIN ACTIVITIES TWO MAIN ACTIVITIES: : 808 438

Days of visit

70 53

Weeks of use

53 26

Visitors

20 16

Projects 2003 2002 PROGRAMA ‘IHP’ Number of grants at the PSA Number of grants at the PSA Access by European Research Groups to Access by European Research Groups to the PSA test facilities through EC the PSA test facilities through EC programmes programmes

slide-59
SLIDE 59

Ge ne ve , 30 Ma rc h, 2006

A Sho rt Histo ry

  • Nine pa ra b o lic tro ug h pla nts (SE

GS) in c o mme rc ia l

  • pe ra tio n a t Ca lifo rnia : 354 Mwe
  • L

a st o f the m wa s finishe d in 1992.

  • And a fte r.........

354 MWe 0 MWe

slide-60
SLIDE 60

Ge ne ve , 30 Ma rc h, 2006

So me thing is Mo ving in Spa in

  • A ne w le g a l fra me work for re ne wa ble e ne rg ie s ha s

be e n a pprove d on la st Ma rc h.

  • T

he re we re se ve ra l c omme rc ia l proje c ts ‘on sta ndby’.

  • Be side s, the PL

AT AF ORMA SOL AR DE AL ME RÍA (PSA), sta nds in the bre a c h of de monstra tion proje c ts, ke e ping the inte re st a live .

slide-61
SLIDE 61

Ge ne ve , 30 Ma rc h, 2006

NE W F E E D- IN T ARIF F S F OR R.E . IN SPAIN

Princ iple s:

  • Co ntrib ute to susta ina b le de ve lo pme nt

a nd to me e t K yo to ’ s c o mmittme nts.

  • Se t a sta b le , lo ng -te rm, o b je c tive a nd

tra nspa re nt le g a l fra me wo rk fo r I PPs

Roya l De c re e 436/ 2004 of Ma rc h 12th

slide-62
SLIDE 62

Ge ne ve , 30 Ma rc h, 2006

a ) T O SE L L T HE E L E CT RICIT Y T O T HE DIST RIBUT OR

T he produc e r will re c e ive :

  • A pe rc e nta g e of the Ave ra g e Re fe re nc e T

a riff (ART ) de fine d in RD 1432/ 2002. Pa yme nts g o down a s insta lla tion is g e tting olde r.

  • Supple me nta ry pa yme nt for re a c tive e ne rg y.

b) T O SE L L DIRE CT L Y IN T HE E L E CT RIT Y ST OCK MARKE T

(da ily, fixe d- te r m pe r iods or by bila te r a l c ontr a c t)

T he produc e r will re c e ive :

  • Ma rke t pric e
  • Pre mium whic h is a pe rc e nta g e of ART
  • Inc e ntive whic h is a pe rc e nta g e of ART

OPT IONS F OR SOL AR T HE RMAL POWE R PL ANT S IN SPAIN

Se lling option c a n be re vise d by a nnua l pe riods

slide-63
SLIDE 63

Ge ne ve , 30 Ma rc h, 2006

a ) Re g ula te d T a riff (Art. 22.1.a ):

  • Se lling e le c tric ity to distrib uto r. Se lling pric e is a pe rc e nta g e o f

ART . T a riff is uniq ue fo r a ll ma rke t pro g ra m pe rio ds.

  • I

t is c o mpulso ry to supply pro duc tio n pre dic tio ns.

Pa yme nt: % ART

+ Re a c tive (b e twe e n +8% a nd –4%) - De via tio ns

Advantages: Well known Prices Scheme Less volatile premiums Disadvantages: Deviation costs (10% ART) Less profitability than market option

Alte rna tive s o f e c o no mic a l re g ime (RD 436/ 2004)

slide-64
SLIDE 64

Ge ne ve , 30 Ma rc h, 2006

b) Going to the e le c tric ity stoc k ma rke t:

  • Ope ra ting a s/ thro ug h a ma rke t a g e nt a nd jo ining the ma rke t.

Pa yme nt: Po o l ma rke t pric e + Pre mium + I

nc e ntive + Re a c tive (b e twe e n + 8% a nd –4%)

Advantages: No deviation cost Disadvantages: Adapt to market agent capabilities. Higher risk because of variations of pool price (hydropower fluctuations, weather influence, fuel prices,...)

Alte rna tive s o f e c o no mic a l re g ime (RD 436/ 2004)

slide-65
SLIDE 65

Ge ne ve , 30 Ma rc h, 2006

Roya l De c re e 436/ 2004

  • F
  • ssil fue l ba c kup: Na tura l g a s o r pro pa ne , o nly to ke e p the

te mpe ra ture in the sto ra g e syste m.

– Re g ula te d T a riff Optio n: 12% Ye a rly E le c tric ity Pro duc tio n T his b a c kup to b e use d a t no n-g e ne ra ting pe rio ds, o nly. – Ma rke t Optio n: 15% Ye a rly E le c tric ity Pro duc tio n Ba c kup c a n b e use d a t a ny time .

slide-66
SLIDE 66

Ge ne ve , 30 Ma rc h, 2006

Roya l De c re e 436/ 2004

  • De via tions (only a pplic a ble to ‘ta riff option’): F
  • r 10 MW ST

PP, c o mmitme nt to c o mmunic a te the distrib uto r e le c tric ity pro duc tio n fo re c a sts 30 ho urs b e fo re ha nd fo r 24 pe rio ds pe r da y:

  • T
  • le ra nc e 20%
  • Mo nthly De via tio n Co sts=10% ART

(Σ De via tio ns o ve r to le ra nc e s)

  • T

a riffs, Pre miums a nd Inc e ntive Re visions (only a pplic a ble to ne w pla nts):

F

irst in 2006, a fte rwa rds e a c h fo ur ye a rs

Afte r first 200 MW

slide-67
SLIDE 67

Ge ne ve , 30 Ma rc h, 2006

ART : 7.2072 c €/ kWh for 2004)

T a riffs, pre mium a nd inc e ntive s: Ne w R.D.

  • Re g ula te d ta riff:

300 % o f ART

(F irst 25 ye a rs) – 240% (fro m 26th ye a r)

  • E

le c tric ity sto c k ma rke t:

Pre mium: 250 % o f ART

(F irst 25 ye a rs) – 200% (fro m 26th ye a r)

I

nc e ntive : 10% o f ART

slide-68
SLIDE 68

E uro Sun 2004 - K e yno te Spe e c h F re ib urg , 21st June 2004

ABENGOA KfW FICHTNER EEA/NREA KJC World Bank ONE BOEING SolarGenix EHN Ghersa Solar Millennium Solel CFE RSCPL BECHTEL CEPEL ESKOM NIROO ENEA ENVIROMISSION

Curre nt Co mme rc ia l Pro je c ts o n the Wo rld

LOCATION Cycle Solar Technology Solar Capacity MW Aperture [m²] Egypt Combined Cycle Trough 35 200’000 India Combined Cycle Trough 35 200’000 Mexico Combined Cycle Investor’s Choice >25 200’000 Australia Combined Cycle CFLR 35 132’000 South Africa Steam Cycle Tower 100 ? USA Steam Cycle Trough 50 300’800 Israel Steam Cycle Trough 100 500’000 Spain Steam Cycle Trough (Andasol) 50 549’360 Spain Steam Cycle Tower (PS10) 10 88’290 Spain Steam Cycle Tower (Solar Tres) 15 240’000 Italy Steam Cycle Trough (Molten salt) 40 451’215

slide-69
SLIDE 69

The ISCCS Concept

Solar Field for Low Pressure Steam

Fuel

200MW Gas T urbine

Forced draught fan X MW Supplementary Firing el Fuel 90 + X MW Steam T urbine el

Solar Field for High Pressure Steam

Inte r na tiona l CSP Pr

  • je c ts ar

e se e king Suppor t fr

  • m the

Globa l E nvironme nta l F a c ility (GE F ) in the fr ame wor k of Ope ra tiona l Prog ra m No.7

slide-70
SLIDE 70

Ge ne ve , 30 Ma rc h, 2006

Wha t c a n we do to de c re a se c o sts ?

  • Inc r

e a se te mpe r a tur e Inc r e a se e ffic ie nc y

– Pa ra bolic troug hs: Dire c t ste a m g e ne ra tion – Powe r towe r: Inte g ra tion into g a s turbine powe r

pla nts

  • De ve lop low- c ost stora g e syste ms
slide-71
SLIDE 71

Ge ne ve , 30 Ma rc h, 2006

Dire c t Ste a m Ge ne ra tio n

  • It’s ne c e ssa ry to de ve lop:

– a se le c tive a bsorbe r c oa ting , sta ble up to 550ºC – a suita ble stora g e syste m – a low- c ost wa te r- ste a m se pa ra tor

slide-72
SLIDE 72

Ge ne ve , 30 Ma rc h, 2006

Po we r T

  • we r T

e c hno lo g y

  • Pre ssurize d-a ir re c e ive rs, a b le to fe e d a g a s turb ine .
slide-73
SLIDE 73

Ge ne ve , 30 Ma rc h, 2006

Sto ra g e Syste ms

  • A se t of minimum re quire me nts:

– 90% e ffic ie nc y – 30 ye a r life time – inve stme nt c ost be low 20 €/ kWh of the rma l

c a pa c ity

slide-74
SLIDE 74

Ge ne ve , 30 Ma rc h, 2006

Sto ra g e Syste ms

  • Use o f mo lte n sa lt a s he a t tra nsfe r me dium

a nd sto ra g e .

  • : T
  • c o mpa re

re fra c to ry c o nc re te vs. hig h-de nsity c a sta b le c e ra mic s fo r pa ra b o lic tro ug hs.

  • Qua rtz sa nd fo r a ir syste ms a t po we r to we rs
  • Sto ra g e fo r ste a m:
slide-75
SLIDE 75

Ge ne ve , 30 Ma rc h, 2006

Co nc lusio ns

  • L

e t’s be optimistic !!

Se ve ra l g ood re a sons for tha t:

  • T

he ne w R.D. 436/ 04 in Spa in: E a rlie st pla nts soon

  • T

he fina nc ia l support from GE F / WB

  • E

ntry into forc e of Kyoto’s Protoc ol

  • Globa l Ma rke t Initia tive (GMI), for 5.000 MW by 2015,

just sig ne d a t the Bonn Confe re nc e by 6 c ountrie s.

slide-76
SLIDE 76

Plataforma Solar de Almería: The European Solar Thermal Test Centre.

  • Geneve. 30 March, 2006

www.psa.es www.psa.es

For further information........ For further information........