solar pv for solar parks and for self-consumption in...

AHK séminaire “L’énergie solaire en Tunisie”, Tunis, 1 novembre 2016

Dr. Roman Brinzanik

Tunis, Tunisia

November 1, 2016

Solar PV for solar parks and for self-consumption

in industry, agriculture and tourism

Case studies

Agenda

KRAFTWERK Renewable Power Solutions

Solar energy for self-consumption – case studies

3


© KRAFTWERK Renewable Power Solutions GmbH

KRAFTWERK – intelligent use of renewable energy

Solutions

Solar parks

as an investment

PV-Diesel Hybrid

for diesel savings

Self-consumption

for more independence

Services

Development Implementation

Permit procedures

Feasibility studies

Yield analysis

Design und engineering

Construction

Commissioning

4



Our focus: high potential regions

Source: 3Tier Inc., 2010

PV is already market competitive in countries with high irradiation

Global horizontal irradiation

600 1,600 2,900 kWh / m2 * a

Santiago

Weingarten

Our offices

Frankfurt

Cairo

Global irradiation map

Optimal conditions

in Tunisia

5



Owner’s Engineer for 50 MW Cairo Solar Farm,

Egyptian FiT program

World’s largest PV park planned:

1.8 GW Benban/Aswan, Egypt KRAFTWERK’s activities

Mid of 2014:

Feasibility studies for 50 MW and 100 MW PV

plants at 3 three different locations in Egypt

End of 2014:

Technical approval of Cairo Solar Consortium to

participate in Egyptian FiT program, 1st round

Until Dec 2015:

Owner’s Engineer to lead implementation of 50

MW Cairo Solar Farm

50 MW plot, 100ha

6



We are also rooftop experts

Installations on tilted roofs Installations on flat roofs

Agenda

KRAFTWERK Renewable Power Solutions

Solar energy for self-consumption – case studies

8



Solar energy for self-consumption pays off

Comparison of electricity costs in Tunisia

0

5

10

15

20

25

30

35

US

Ce

nt / kW

h

1) STEG

2) only diesel costs considered: 0.60 USD/Liter

3) Calculated using LCOE method (Levelized Costs of

Electricity) including all costs over 20 years runtime

(CAPEX, OPEX, capital costs)

Stable

Increasing trend

Increasing trend

Industrial

electricity,

on-grid1)

Diesel

generators2)

Solar PV3)

Implementing solar energy in

your business…

sinks operating expenses

provides energy security

increases planning

dependability

creates greater independence

protects the environment

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The solution – direct generation of solar power for

self-consumption

Use of roofs or land for photovoltaic power plants

Direct use of solar energy for own demand

PV runs together with grid

100% PV self-consumption or surplus PV electricity

injected into grid (net-metering, feed-in tariff)

Self-consumed solar electricity reduces

energy bill

Commercial/ industrial energy demand takes

place mainly at daytime

High correlation with solar energy profile

Reduce your operating costs

10



Case studies for industrial self-consumption

Solar energy

for running machinery

1. Recycling factory

Southern Germany

2. Agriculture

Chile

3. Tourism

Chile

Solar energy

for irrigation Solar energy

for diesel savings

On-grid On-grid Off-grid

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Large solar power plant on warehouse roof-top of a

recycling company

Case study 1

Largest recycling factory in Southern Germany

> 400,000 kWh annual energy consumption

Energy consumption during the day

350 kWp roof-top solar power plant

> 350,000 kWh annual energy production

Commissioned: August 2014

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Recycling factory reduces its electricity costs by 50%

Case study 1

0,00

50,00

100,00

150,00

200,00

250,00

0,00

0,45

1,30

2,15

3,00

3,45

4,30

5,15

6,00

6,45

7,30

8,15

9,00

9,45

10,30

11,15

12,00

12,45

13,30

14,15

15,00

15,45

16,30

17,15

18,00

18,45

19,30

20,15

21,00

21,45

22,30

23,15

Load and solar profiles on a summer day

Load profile Solar profile

Solar energy for

self-consumption

Feed into grid

Obtain from grid

~50% solar energy share

annually

Surplus electricity is fed into

the grid and compensated for

Pow

er

in k

W

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Ground mounted solar power plant for a cultivation site in

the Atacama Desert, Chile

Case study 2

Cultivation of table grapes

Large energy demand for irrigation,

refrigeration and packing

> 2,000,000 kWh annual energy consumption

Seasonal fluctuation

307 kWp ground mounted solar power plant

> 580,000 kWh annual energy production

Desert conditions

Commissioned: January 2013

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PV power plant with > 90% rate of self-consumption after

optimizing the irrigation schedule

Case study 2

Load and solar profiles during one day

Detailed analysis of energy

consumption during project

planning phase

New irrigation schedule

devised with the help of

agricultural experts

> 90% solar energy used

directly for crop irrigation

~30% solar energy share

Profitable investment,

financed by Inter-American

Development Bank

Old irrigation

schedule

New irrigation

schedule

Annual

distribution of

solar energy

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PV plant integrated in diesel grid of luxury hotel

Case study 3

Luxury hotel in the Atacama Desert, Chile

Island system supplied by 3 diesel generators

~ US$ 100,000 annual diesel costs

Diesel price of 0.85 US$ per liter

Project phase 1: 23 kWp PV plant

Feed into diesel network with grid inverters

Hybrid controler ensures co-generation

Commissioned: June 2013

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Solar power plant reduces diesel consumption

Case study 3

Load profile measurements

during project planning phase

System solution: integration of

PV in diesel network, min of 1

genset must run continuously

Diesel savings of ~15% p.a.

Investment payback in 3

years

Project phase 2 (2017):

175kWp PV / 317kWh Li-Ion

battery diesel hybrid system,

Diesel savings of ~60% p.a.

Load and solar profiles during one day

0kW

10kW

20kW

30kW

40kW

50kW

60kW

70kW

80kW

90kW

1 2 3 4 5 6 7 8 9101112131415161718192021222324

Loadprofile

PVTotalBruto

Dieselprofile Neto

PVTotalNeto

Dieselmin

Solar energy fed into the grid =

diesel savings

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Core messages

PV for industrial self-consumption: generate solar energy where it is

consumed

This means maximum cost efficiency and protection of resources

Decentralized generation is the key to the energy supply of the future

Thank you for your attention.

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Your contact

Dr. Roman Brinzanik

Tel +49 69 8720 5501

Mobile +49 172 1744112

[email protected]

www.kraftwerk-rps.com

Projekt Office Solar

Deutschherrnufer 32, 60594 Frankfurt, Germany

Office Egypt

Building 170, Street 28, 5th District, New Cairo, Egypt

mailto:[email protected]



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