1

Company Overview

March 2014

Pilot plant in Ait-Baha, Morocco Operated by Ciments du Maroc

(Italcementi Group)

Under construction

2

Company overview

Airlight Energy is a Swiss private

company that supplies proprietary

solar technologies

for large-scale production of

electricity and thermal energy, and for

energy storage

First CSP Pilot plant in Ait-Baha (Morocco)

3

A new paradigm in concentrating solar technologies

Our 5 major innovations

Air-based receiver

Fiber-reinforced concrete structure

Film mirrors

ETFE pneumatic enclosure

Packed-bed thermal energy storage

Operate up to 650C

Non-polluting fluid

Durable, cheap, locally

available material

Simple manufacturing,

Low cost per aperture area

No dust and low humidity

inside the enclosure

Total water recovery

Cheap, locally available

material

Low thermal losses

Competitors

X Potentially polluting and expensive thermal fluids

X Expensive construction material

X Expensive construction material

X Wasting of water

X Potentially polluting materials

Oil / molten salts receiver

Aluminium structure

Glass mirrors

No cover

Oil/molten salts storage

7

We are substituting steel with concrete

Durable: 60 years lifetime

Cheap construction material

Locally available

Increased stiffness, better focusing, greater concentration

Extensive use of local workforce and resources due to in situ manufacturing

Anti-seismic mechanism able to withstand extreme seismic events

Few big pieces allow a simple modular construction Pre-cast fiber-reinforced concrete structure:

optimized beam with accurate shape design

8

Better cleaning and protection thanks to pneumatic enclosure The mirrors and receiver are protected inside a pneumatic enclosure with a controlled atmosphere, the external film is made of highly transparent ETFE

ETFE is a widely available industrial product, no production bottlenecks

Greater resistance than glass against scratching

No dust and low humidity inside the enclosure

Easy to wash and total recovery of washing water

Film assembled by ALE in Biasca and shipped in reels

Did you know that

ETFE (Ethylene tetrafluoroethylene) is a flourine based plastic.

After their useful life as pneumatic enclosure for CSP plants

the ETFE foils can be recycled in the agricultural industry

as greenhouse coverings

R&D test facility, Biasca, Switzerland

9

Pneumatic polyester foil mirror instead of glass or aluminum

Mirror foils are kept in shape by differential pressures, linear parabolic configuration

Large aperture (9.7 m with 2 mirrors)

High optical efficiency

High concentration (60 suns average)

Simple manufacturing

Low cost per aperture area

No production bottlenecks

Did you know that

the mirror foils are made from

stretched polyethylene terephthalate

(PET) a material commonly used in the

packaging industry P2

R4=6.78m

R3=7.80m

R1=12,20m R2=9,52m

10

With air as thermal vector we can reach up to 600C operating temperature

Air as heat transfer fluid is used in a specifically developed receiver, with high performance low emissivity

shields insulation, inlet and outlet on the same side which minimize piping, secondary trumpet mirror for

spillage minimization and optical reconcentration

High operating temperatures, up to 600 C

Use of conventional materials and no need for high-tech coatings or vacuum insulation

Easy to manufacture

Inexpensive and non-polluting thermal fluid, easy to integrate in existing processes

11

Cost effective solution for thermal energy storage using concrete and gravels

Air as a heat transfer fluid makes it possible to create a simple storage that uses a closed concrete container

filled with stone gravel

Continuous production, compensating intermittency of sun availability

Low thermal losses in the range of 1% every 24h

Highly competitive production costs

Robust, fail-safe technology

Locally available construction materials

Non-polluting, non-corrosive requirements

Simple manufacturing

No maintenance required

Did you know that

this is a simple, proven and effective technology

first patented in 1929

Detail of Ait-Baha pilot plant, Morocco

12

CSP Booster plant layout and integration with existing process

Schematic example for CSP plant, Ait-Baha, Morocco

14

#

Click to edit Master text styles Second level Third level Fourth level Fifth level

AIRLIGHT ENERGY Holding - Biasca - Switzerland

www.airlightenergy.com