SOLAR23 – Turn Key PV Project Experience Rühle - Turn Key... · 2017-02-23 · solar modules -> 1kWp =10m² 2.load profile: what is the maximum peak load in kW? = power of inverter

A glimpse into the future of Solar Energyrealizing renewable energy

SOLAR23 – Turn Key PV Project Experience

WIPRO ENERGIEWORKSHOP 21. November 2013 Jochen Rühle

TABLE OF CONTENTS

1. Introduction SOLAR23

2. Photovoltaic Systems Applications

3. Practice report: How to manage turn key PV projects?

4. After Sales Service

5. Financial analysis

POWER THE WAY TO SUSTAINABILITY

SOLAR23 Group1. Introduction SOLAR23




Who are we?

SOLAR23 GmbHZeitblomstrasse 789073 UlmGermanywww.solar23.com



What are our qualifications?

ABIDJAN, Ivory Coast ACCRA, Ghana ADDIS ABABA, Ethiopia ALGIER, Algeria ANTANANARIVO, Madagascar ASMARA, Eritrea BUJUMBURA, Burundi DAKAR, Senegal JEDDAH, Saudi Arabia RIADH, Saudi Arabia JOHANNESBURG, South Africa KAMPALA, Uganda KINSHASA, Dem. Rep. Of Congo LAGOS, Nigeria LOMÉ, Togo LUSAKA, Zambia N´DJAMENA, Chad NOUAKCHOTT, Mauritania OUAGADOUGOU, Burkina Faso TUNIS, Tunisia YOUNDÉ, Cameroon

EUROPE

AFRICA ULM, Germany BRUXELLES, Belgique BOURDEAUX, France

ASIA

NEW DELHI, India KONYA, Turkey


SOLAR23 Group1. introduction SOLAR23

Where are we?


SOLAR23 Group1. introduction SOLAR23

Who are our customers?


SOLAR23 Group2. photovoltaic systems applications

Grid Connected Photovoltaic Systems

• large scale on ground photovoltaic power plants

• roof mounted grid systems for houses, farms, commercial and industrial customers

• battery back up systems to increase self consumption

• BIPV = building integrated photovoltaics

Off-Grid Photovoltaic Systems

• village power supply systems

• industrial power supplies (telecom, oil&gas, traffic, …)

• solar home systems

• solar streetlights

• photovoltaic pumping systems



photovoltaic power plants



roof mounted gridconnected PV system



battery back up systems



building Integrated PV



village powersupply systems



photovoltaic power suppliesfor industrial use

here: telecommunication system

http://en.wikipedia.org/wiki/File:Deutsches_Museum_-_The_guts_of_a_GSM_cell_site.jpg



Solar Home Systems



solar powered streetlights



Photovoltaicpumping systems

Personal selling Module coverage plan System sizing

Visualization & Shadow

Bill of materials

Economic analysis

Turn key installation After sales service


SOLAR23 Group3. How to manage turn key projects?

Quotation to customer Purchasing & Logistics

transport to site



Photovoltaic system layout &SOLAR23 questionnaire / checklist

Grid connected photovoltaic systems

1.available surface on roof or on ground for solar modules -> 1kWp = 10m²2.load profile: what is the maximum peak load in kW? -> not interesting ! No batteries are required, only daytime3.energy consumption: which is my annual energy consumption in [kWh]? -> 1kWp produces 1500kWh/year* 4.feed in tarif available or self consumption?5.special features? ->BIPV6.your budget -> how much do you want to invest?

* depending on site

Off-grid photovoltaic systems

1.available surface on roof or on ground for solar modules -> 1kWp =10m²2.load profile: what is the maximum peak load in kW? = power of inverter/ chargers; 100% night time?3.Are there seasonal variations of load profile and irradiation?4.Energy consumption: which is my daily average energy consumption in [kWh]? -> worst case analysis5.How many days of battery autonomy do I need? -> recommendation: 5 days6.Do I have back-up from grid or diesel generator?7.Special features? ->BIPV8.Your budget -> how much do you want to invest?



Basic requirements for components

Solar modules IEC 61215, IEC61730, IEC 61646

Grid tie inverter IEC 62103, IEC 61109, IEC 60664

Solar charge controllers IEC 62509

Battery inverter / chargers IEC 60529, IEC 61683

Industrial solar batteries IEC 61427

General quality insurance ISO 9001, ISO14001

Electrical safety / grid connection: VDE AR 4105



Principle:

„Do not look for the lowest investment cost,but look for the lowest lifetime cost (cost per year)“

best practise recommendations:

- choose quality products manufacturered under industrial standards- build long term relations with suppliers to guarantee spare part supplies- standardize your applications, avoid to engineer always a different solar system for each site- establish an own internal quality managment system such as ISO 9000 and document all your activities



Example of battery lifetime

Manufacturer A Manufacturer B



Example of battery lifetime

Manufacturer A Manufacturer B

Gel battery 12V-200Ah Gel battery 12V-200Ah

Price = 200 Euro Price = 449 Euro

Lifetime = 600 cycles at 50%DOD Lifetime = 3000 cycles at 50% DODService life = 1.6 years Service life = 8.2 years

Cost per year = 125 Euro Cost per year = 55 Euro


SOLAR23 Group

Lessons learnt, positive and negative

National & international tenders

• Technical specifications set by tender document / consultant• offer only the minimum standard which is requested by the tender• not the quality wins, but price, not ROI, but initial budget• after sales service is mostly forgotten no control mechanism• many winners finally deliver different components than offered

SOLAR23 adapted design

• detailed analysis what customer really needs• lowest annual cost of investment by using long lasting components• turn key solution with all components („nothing forgotten“)• professional project management from A to Z including commissioning if required• after sales service & partnership• remote monitoring

3. How to manage turn key projects?



Lessons learnt, positive and negative


SOLAR23 Group

Typical project timeline

Purc

hase

orde

r

paym

ents

proc

urem

ent

12 weeks1 week

manufacturing + procurement+ engineering+ packing

4 weeks

ship

men

t

2 weeks

Impo

rt &

tran

spor

t to

site

2-3 weeks

inst

alla

tion

4 to 5 months

3. How to manage turn key projects?


SOLAR23 Group4. After Sales Service

Partnership and long-term engagement offered by SOLAR23to assure successful system operation

1.SOLAR23 usually teams up with local partnerlevel A: financial minority share holdinglevel B: sales agency agreement

level C: customer-supplier relationship

2.Choose first quality components which will safeguard your good reputation among your customers

3. Combine international components with local components (local purchase)

4. Marketing support by SOLAR23 (trade shows, exhibition room etc.)

5. Know how transfer by SOLAR23 to partner company by training

6. Team up for international projects and bid bonds

7.To benefit from manufacturer‘s warranty conditions: local expertise needed!will the manufacturer still be existing?


SOLAR23 Group4. After Sales Service

Remote monitoring systems

source: SMA


SOLAR23 Group5. Financial analysis

How about the economy of PV systems?

1.PV module prices have dropped by 50% during the last three years and have stabilized.

2.Lead prices are constant (The lead acid battery is not at all dead!)

3.System solution efficiency has increased by means of

- inverter technology (up to 97% efficiency)- LED lighting technology (more than 100 lm/W)- direct use of solar energy (e.g. pumping system without energy storage, solar fridge without battery)- special adaption of components (solar pump inverters adapted to pump characteristics;

system power management, optimised charging algortihms)

4.Knowledge and experience is available, no contingencies required for expected „first time uncertainties“

PV systems are competitive in many cases today… ...when thinking long-term!



Kd = (Ao) x [i(1+i)n] / [(1+i)n-1]

Kd = capital serviceAo = initial investment costI = P/100 interest raten = utilisation periodKd = 1.804.251 Euro x [0,04 (1+0,04)25] / [(1+0,04) 25 -1]Kd = 115.493,65 Euro

Calculation of capital service („Kapitaldienst“)

Initial investment cost: 1.550.451 €Investment period: 25 yearsmaintenance (0.25%) =7.752 € p.a. 193.800 €remote monitoring = 2.400 € p.a. 60.000 €

Investment cost over a period of 25 years 1.804.251 €

Example: 1 MWp grid connected PV System



Annual production of 1MWp PV system in Africa = 1.500.000 kWh

Annual cost of investment in PV system = 115.493,65 €

-----------------------------------------------------------

Cost per kWh = 0,0769 €/kWh


Chinese streetlight during daytimeseen in Dakar (Senegal)

MADE IN CHINA


MADE IN CHINA

THANK YOU FOR YOUR ATTENTION!


SAIPEM, Italy

Project: Cathodic Protection & Telemetrie System

Investor: SAIPEM

Volume: 1,6 Mio. EURO

Realization: 2012


SOLAR23 Group10. References (Cathodic Protection System)

PUMPING SYSTEMS, Gambia

Project: 20 x Solar Pumping Systems in Gambia

Investor: Japanese Gouverment

Volume: 3 Mio. EURO

Realization: 2011


SOLAR23 Group10. References (Pumping)

PUMPING SYSTEMS, Burkina Faso

Project: 27 x Solar Pumping Systems in Burkina Faso

Investor: Japanese Gouverment

Performance: 1.350.000 liter / day

Realization: 2012


SOLAR23 Group10. References (Pumping)

SOLAR HOME SYSTEMS, Tunisia

Project: 600 x Solar Home Systems in Tunisia

Investor:

Volume: 1 Mio. EURO

Realized: 2010


SOLAR23 Group10. References (SHS)

FRES

Project: Solar Home Systems in several African countries (Uganda, Burkina Faso, etc.)

Investor: FRES (Dutch NGO)

Volume: 1 Mio. EURO

Realization: 2011


SOLAR23 Group10. References (SHS)

GRET, Mauritania

Project: PV Systems (pumping, lighting, etc.)

Investor: GRET (French Solidarity and International Cooperation Association)

Volume: 2 Mio. EURO

Realization: 2011


SOLAR23 Group10. References (Street-Lighting)

Leitz Foundation, Tanzania

Project: 12 kWp for a catholic Priest Community in

Tanzania

Investor: Louis Leitz Foundation

Volume: 56.000 EURO

Realization: 2012/13


SOLAR23 Group10. References (Off-Grid)

50,75 KWP ON-GRID SYSTEM, Neckarrealschule Stuttgart

Project: Supply of Electricity to a German school by PV

Investor: City of Stuttgart

Volume: 136.000 EURO

Realization: 2012


SOLAR23 Group10. References (On-Grid)

102,5 KWP ON-GRID SYSTEM, Germany

Project: 102,5 kWp PV for a hospital

Investor: Private Hospital


Realization: 2006




Project: 46,8 kWp on a commercial company building

Investor: Private investor


Realization: 2010 / 2011




Project: 323,2 kWp on a industrial building

Investor: Private Investor


Realization: 2011



7.7 KWP ON-GRID SYSTEM, Germany

Project: 7.7kWp PV Installation for a private Household

Investor: Private Investor

Volume: 35.000 EURO

Realization: 2010



THANK YOU FOR YOUR ATTENTION!


Documents

SOLAR23 – Turn Key PV Project Experience Rühle - Turn Key... · 2017-02-23 · solar modules -> 1kWp =10m² 2.load profile: what is the maximum peak load in kW? = power of inverter