Date post: | 06-Apr-2018 |
Category: |
Documents |
Upload: | truongcong |
View: | 223 times |
Download: | 6 times |
Solar Solutions and
Large PV Power Plants
Oscar Araujo
Business Development Director -
Americas
Schneider Electric 2- Renewable Energy – Oscar Araujo
Solar Business of Schneider Electric
●The Solar Business of Schneider Electric is focused on designing and
developing renewable energy products and solutions and providing
best-in-class, global customer services and technical support.
●Our innovative products help you to get the most efficient solar harvest
from your installation, and you benefit from having a single supplier for
all of your components. Our products and solutions are present at every
link in the energy chain and contribute to your total energy savings.
Schneider Electric 3- Renewable Energy – Oscar Araujo
Brief history…
●Antoine Becquerel first described the photovoltaic effect in
1839, and Albert Einstein explained the mechanisms in
1912
● When a material is exposed to sunlight, exposed atoms
release electrons
● The « free » Electrons create a continuous low voltage
● In the 1950s teams of Bell Laboratories manufactured the
first crystalline silicon cell
● First commercial applications with space programs
●A real interest born from the second oil shock (early 1980)
for terrestrial energetic applications
● In 1963 the first cells are installed in Japan
● Today, photovoltaic cells are present in various applications
Schneider Electric 4- Renewable Energy – Oscar Araujo
Solar Farms(few megawatt)
General public
applications(few watts)
Installation in the
residential(1 to 5 kW)
Some examples of applications…
Installations in
buildings(few 100 kW)
Schneider Electric 5- Renewable Energy – Oscar Araujo
A cell
Current generation
●A photovoltaic cell is made from a
slice of silicon70 mm
● The electrons will recombine with
holes through the external circuit to
balance the junction :
A direct electrical current
is generated
● The silicon is doped with impurities.
This creates an area with excess
electrons (N zone) and a deficit of
electrons or holes (P zone)
●The energy of photons from the sun
will release electrons
-P doped zone
N doped zone
300 m
+ ++
--
+
-
+
-
Photons
+-
A slice of silicon
Schneider Electric 6- Renewable Energy – Oscar Araujo
The main manufacturing technologies
●Mono crystalline silicon cells ( M-Si )
● Higher efficiency
● Quite high manufacturing costs
●Poly crystalline silicon cells ( P-Si )
● Widely used
● Cheaper than mono crystalline
●Thin film or amorphous silicon cells ( a-Si )
● Lower efficiency but better than crystalline on diffuse radiation
● Cheaper than polycrystalline
● Suitable to large building projects , roof or cladding systems
● Flexible and lightweight
Schneider Electric 7- Renewable Energy – Oscar Araujo
●Energy production
● A photovoltaic generator produces
DC
Junction box
Inverter
Protection enclosure
Raccordement
au réseau
Photovoltaïc
generator
●Energy conversion
● An inverter converts direct current
into alternating current .
●The connection and protection of
continuous and alternative circuits
● Junction boxes
● DC and AC protection enclosures
=
Structure of a photovoltaic system
Schneider Electric 8- Renewable Energy – Oscar Araujo
Off Grid and
Solar Back-up
Power Systems
Schneider Electric 9- Renewable Energy – Oscar Araujo
Residential Grid-Tie Systems
Schneider Electric 10- Renewable Energy – Oscar Araujo
Small Commercial Grid-Tie Systems
Schneider Electric 11- Renewable Energy – Oscar Araujo
Utility Scale
Grid-Tie Systems
Schneider Electric 13- Renewable Energy – Oscar Araujo
Schneider position and offer: leader in
offering the lowest LCOE possible
production
O&M costs investment
Financingcosts
taxes
Increase
O&M efficiency
Offer high level of
Equipment reliability
Decrease
Construction price
Life time
High level of Bankability
By Reduction of risks
Reduction of
Construction time
Decrease
O&M costs
Schneider Electric 14- Renewable Energy – Oscar Araujo
90%
95%
100%
105%
110%
115%
120%
125%
130%
135%
140%
145%
150%
0 5 10 15 20 25 30 35 40 45 50
Price (100% for 24 MW)
MW
The Bigger – The Better
Below 10 MW, CAPEX is strongly increased
CAPEX as a function of size
●As an example, cost of electricity is increased by 15% if the power plant
size is 5 MW instead of 50 MW
Schneider Electric 15- Renewable Energy – Oscar Araujo
How is a Solar Farm Built ?
Schneider Electric 16- Renewable Energy – Oscar Araujo
Civil work :
Land leveled if needed,
Screws or piles are positioned to
support structures
Schneider Electric 23- Renewable Energy – Oscar Araujo
Structures :
Aluminum or steel construction
Pre-assembled or easy to put
together on-site
Schneider Electric 27- Renewable Energy – Oscar Araujo
Schneider Electric 29- Renewable Energy – Oscar Araujo
Modules :
Crystalline or thin-film
Schneider Electric 32- Renewable Energy – Oscar Araujo
Schneider Electric 34- Renewable Energy – Oscar Araujo
Array boxes :
Connect strings
Cables are usually trenched
Schneider Electric 36- Renewable Energy – Oscar Araujo
Schneider Electric 38- Renewable Energy – Oscar Araujo
PVBox for Power
conversion
Includes
Inverters
Transformers
MV protection
Cooling equipment
Typical Size: 1MW
Schneider Electric 40- Renewable Energy – Oscar Araujo
Schneider Electric 42- Renewable Energy – Oscar Araujo
Large power plants are made of 1MW
(or larger) blocks
Schneider Electric 43- Renewable Energy – Oscar Araujo
Grid-Tie Substation
Includes
transformers
Circuit breakers
energy meters
Schneider Electric 44- Renewable Energy – Oscar Araujo
Schneider Electric 45- Renewable Energy – Oscar Araujo
Large power plants are just
" Copy-and-Paste " of smaller blocks
Olmedilla, Spain,
60 MW
● 1MW (or larger blocks) 20 000m²
Schneider Electric 46- Renewable Energy – Oscar Araujo
Schneider Electric offers a
comprehensive solution
7 % - Engineering &
Commissioning
15 % - Cables &
Electrical installation
27 % - Schneider Electric
equipment
36 % - Screws, structures
& panel mounting
15 % - Civil works
50 % - Civil work
Structures
Electrical Equipment
50 % - Panels
Schneider Electric 47- Renewable Energy – Oscar Araujo
SE Business Models
Products/Equipment
Inverters
Transformers
Switchgears
Solution Package:
PV Box
Grid Box
Array Box
Monitoring/SCADA
Electrical EPC
Adequate packages +
Project Management
Electrical Engineering
Electrical Installation
Security system
Operations and Maintenance Services
Commitment on availability level
1
2
3
Schneider Electric 48- Renewable Energy – Oscar Araujo