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7/28/2019 Acciona's Presentation

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TECHNOLOGYAND EXPERIENCE

IN CONCENTRATINGSOLAR POWER



2TECHNOLOGY AND EXPERIENCEIN CONCENTRATING SOLAR POWER

Th p Ty of l r r w bl s,T your s rvic

ACCIONA Energy is a world leader in the development

o renewable energy sources, with a major presence in a widerange o clean technologies. It has applied this experienceto its own projects and those carried out or its customers.

The company has installed around 9,000 MW in renewables– 86% o this fgure in wind power – and has hydropower,CSP, photovoltaic, biomass, biodiesel and bioethanol plants. It

also manu actures wind turbines using proprietary technology.

It belongs to ACCIONA, one o the biggest Spanishcorporations which operates in in rastructures, energy, water and services in more than 30 countries. Its corporate motto“Pioneers in development and sustainability” re ects itscommitment to contribute to economic growth, social

well-being and the protection o the environment in allits activities.

ACCIONA leads its sector on the Dow Jones SustainabilityIndex, has a work orce o around 35,000 people worldwideand earned revenues o 12,665 million euros in 2008. It isquoted on the IBEX-35 selective index o the Spanish stock

market (ANA.MC).

wiTh lo G r Xp ri c• ACCIONA is the most experienced company

in the renewables sector, with over 20 years o track-record.• Our work orce: 2,000 skilled pro essionals.

wiTh wi r G of s rvic s• Development, construction and O&M o renewable energy

projects or the company and or its customers.• Wind turbine design, manu acturing and supply.

• Electricity production and trading/management o CO2.

W nd power 7,702 MW CSP 115 MW Photovolta c 115 MW

i Mor T ch oloGi s

Hydropower 911 MW B omass 33 MW B ofuels 296,000 t/yr

Includes facilities built for third parties.



Own capacity installed Capacity under development Capacity installed or customers

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wiTh Glob l pr s cWe are present in the main strategic markets.

for wi r G of cusToM rsWe put our knowledge and capacity at the service o customers interested in developing renewables projects:

F nanc al nvestors wishing to materializerenewable energy projects.

Ut l t es and iPPs seeking to increase the shareo clean energy in their generating mix.

industr es looking to produce their own

energy or acquire it rom third parties.

Governments who need to draw up renewableenergy development plans.

Other bod es and organ zat ons that arelooking or partners or suppliers to carry outtheir projects.




r v G Th r surGof co c Tr Ti G sol r pow r

ACCIONA has taken a leading position in the resurgenceo concentrating solar power (CSP) in the world, based onparabolic trough technology. A number o milestonesre ect our position as a key player in this process:

• AP i 2006. F rst nstalat on for customers. ACCIONA, through its subsidiary Solargenix, opens the

1 MW plant in Saguaro, Arizona (USA) as a turnkeyproject or the Arizona utility APS.

• JU 2007. The b ggest plant n 18 years. ACCIONA grid connects Nevada Solar One (NSO),a 64 MW plant using parabolic trough collector technology – the biggest plant o its type built

in the world in the last 18 years– .

• D C MB 2008. xceed ng expectat ons. NSO produces 136 GWh o electricity in its frst ull year o operation, with a level o e fciency that takesoutput 9% above initial orecasts.

• S PT MB 2009. Second plant n operat on. ACCIONA puts into service Alvarado I, its frst CSP plantin Spain (50 MW) in the region o Extremadura.

• 2009-2011. Three plants under construct on. ACCIONA is simultaneously constructing three CSP plantsin southern Spain, each o them with a capacity o 50 MW

and parabolic trough technology. The acilities are: Palmadel Rio I and II (in Cordoba) and Majadas (in Caceres).Construction work on these acilities will be completedin 2010 and 2011.

• 2012. Our fth plant n Spa n. The 50 MW CSP plant at Orellana (Badajoz) will come into

operation. It is ACCIONA’s third acility in Extremadura.

• B O D 2012. ew projects. We will continue to develop solar thermal power projectsin the uture. In the short term, we have a port olioo a urther 450 MW in Spain and the USA.

Mi STO S



csp iMpl M T Tio by ccio rGy

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NevadaSolar One

Saguaro

s ain

MajadasAlvarado I

Palma del Río I y II

Orellana

Own operational assets Built or third parties Under construction Under development




s X pl Ts f v y rsw Th € 1.4 b ll o ToT l v sTM TThe six ACCIONA-owned CSP plants that have already been installed, are under construction,

or are in the fnal stage o development represent:

• A total capacity o 314 MW.

• An approximate investment o 1.4 b ll on euros.

• More than one m ll on m rrors installed in solar felds.

• 278 m les of parabol c trough collectors.

• More than 4,600 parabol c concentrators with 100,000 solar rece vers.

• Solar elds totalling a sur ace o around 800 hectares.

• Over 650 GWh of clean energy produced annually.

• Enough power to supply around170,000 homes.

• Avoiding the emission o more than660,000 metr c tonnes of CO 2 to the atmosphere.• 2,160 d rect jobs in construction and 180 n operat on.




v sol r osT rT G w rIn June 2007 ACCIONA grid connected Nevada Solar One,

located at Boulder City, Nevada (USA). It is the frst largeCSP plant installed in the world a ter the nine builtin Cali ornia between 1985 and 1991.

ACCIONA Solar Power recognized the potential or CSPgeneration in the Southwestern U.S. and built Nevada Solar One to demonstrate that this technology could per orm on

a commercial scale. The building o CSP plants in the U.S.could help contribute to a lower carbon-emitting electricitygrid in just a ew decades.

The energy generated in the plant is purchased by theelectric utilities Nevada Power and Serra Pacifc under a20-year contract.

Two years o operation have demonstrated the reliabilityo ACCIONA’s own technology, with production levelshigher than expected.

VADA SO A O CSP P A T

(*) In coal-fred power stations.

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Boulder City, Nevada (USA)

64 MW

134 GWh

250 million dollars

Parabolic trough

June 2007

48 miles130 hectares

15,000 (USA)

129,000 metric tonnes / year

400 (average) in construction30 in operation




Alvarado I is the frst o the our plants that ACCIONA plans

to build in Spain by 2011, each o them with a capacityo 50 MW and parabolic trough technology.

The experience obtained with Nevada Solar One has been akey actor in the success ul completion o the constructiono the plant (opened in July 2009) and also or optimizingits operation and maintenance.

Alvarado will produce around 102 million kilowatt-hours per year, su fcient to cover the demand rom around 28,000homes and helping to achieve compliance o Spain’sobjectivesin renewables (20% o primary energy by 2020).

The solar feld spreads out over more than 130 hectares,

the equivalent o 170 soccer pitches. It has 184,320 mirrorsaligned in rows and 768 solar collectors with a total lengtho around 74 kilometers.

lv r o Th f rsT sp

(*) In coal-fred power stations.

A VA ADO i CSP P A T

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linea engt a c ects ace a ea a e d

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Alvarado, Badajoz (Spain)

50 MW

102 GWh

230 million euros

Parabolic trough

September 2009

46 miles130 hectares

28,000 (Spain)

98,000 metric tonnes / year

350 (average) in construction31 in operation




-hous T h oloGyof prov r li biliTy

ACCIONA has proven capacity in the feld o solar thermal

energy that puts us in an excellent position in relation toour competitors.

We have developed our own parabolic trough technology on the basis o the experience o the companies thatundertook the initial development o this type o acilityin Cali ornia in the late 1980s and early 1990s.

Our ongoing commitment to technological innovation isshown in a number o aspects, such as:

• ew HTF loop and new header frame and components that optimize e fciency and reduce the required capex,as well as operation and maintenance costs.

• &D projects a med at mprov ng ef c ency and

reduc ng costs in the short, medium and long term, e.g.:> Heat storage systems.

> Standardization and hybridization o the power unit.

> Better solar concentration ratios.

> Improvement o processes to reduce capitaland operational costs.

> Low cost heat bu ering or peak hours.

> Optimization o the rated power due to the scale e ect.

> Cycles higher temperatures.

> Simplifcation o technology in design and construction.

> Dry cooling or reduced use o water.




G r G o sTru T oov rcoMi G ch ll G s

ACCIONA’s engineering and construction team is one

o the most experienced in the world when it comesto dealing with the technical challenges posed by theinstallation o large CSP plants.

We put this know-how at the service o our customers,with the guarantee o a company that has convertedprojects into reality that are commercially viable, o ten

exceeding orecasts.

Some di erential assets vis-à-vis our competitors include:

• The most mature parabol c trough technology, developed in-house, with a working li e o morethan 35 years.

• Our own s mulat on tools or plant design and

modeling o di erent operating strategies (SimulCET)and or the design and modeling o solar felds (DinaCET).

• Own des gn of space frames or the solar concentrators.These can be built locally by approved suppliers to reducethe installation costs.

• The longest-stand ng construct on exper encen the sector, with several plants in operation andunder construction.

• The guarantee of del ver ng projects n l ne withthe project fnance requirements o fnancial institutions.




op r T o M T :Mprov G ff y r u G osTs

ACCIONA has real and direct knowledge o all the aspects

involved in the operation and maintenance o a CSP plant.This has enabled us to develop exclusive technologies andprocesses that make the best use o the production capacityo our acilities and minimize costs, thus improving thee fciency o the plants. To achieve this, we have:

• More exper ence n the operat on and ma ntenance

of CSP plants than our competitors, with over 140,000man-hours worked.

• rea kn edge o the management o O&Min operational plants.

• Correct ve ma ntenance rates below forecasts

due to the optimal design o the solar feld, with major cost reductions.

• Our own O&M tra n ng centres in the United Statesand Spain.

• xtens ve exper ence n eld control and superv s on

systems, with so tware developed in-house.

• xtens ve knowledge n other elds such as turbinetechnology, ancillary unctions (mirror maintenance,fre prevention) and relations with suppliers, among others.



rays into eleCtriCity

Solar collectors

Solar heated heattrans er uid

Turbine

Supplementarynatural gas heater

Water ow

Cooling water

Coolingtower

Steam generator

Superheated steam

Solar superheater

F l o w

o f h e a

t t r a n s f e r

u

i d

Steam & water

28ºC

38ºC

380ºC

Electric generator and trans ormer

Condenser

390ºC 2 9 0 º C

40ºC



Avda. Ciudad de la Innovación nº 531621 Sarriguren. Navarra. SpainTel.: (+34) 948 00 60 00Fax: (+34) 948 00 60 01www.acciona-energy.com

Acci A Solar Power

2551 N. Green Valley PkwySuite 205-B

Henderson. Nevada. 89014 USATel.: (+1) 702 547 4288Fax: (+1) 702 547 4289

Acci A Energy

Avda. de Europa, 6Parque Empresarial La Moraleja

28108 Alcobendas (Madrid)Tel.: (+34) 91 657 64 60 / 61Fax: (+34) 91 663 07 59

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