Thin film Solar Photovoltaics in India

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This is the presentation I made at the Intersolar India 2011 Conference held at Mumbai, India(www.intersolar.in).

Transcript of Thin film Solar Photovoltaics in India

Will Thin Films win in India?

Madhavan Nampoothiri

December 13, 2011Mumbai

Agenda

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What is the future outlook for Thin Films?

5. Conclusion

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What is the future outlook for Thin Films?

5. Conclusion

Agenda

Thin Films – From Niche to Mainstream

2005 2006 2007 2008 2009 20100%

2%

4%

6%

8%

10%

12%

14%

16%

18%

20%

$-

$50

$100

$150

$200

$250

$300

$350

$400

$450

$500

$70 $100 $250 $450 $70 $50 $35

6%

8%

10%

13%

18%

13%

Global Thin Film market share

Average Polysilicon spot price $/kg Thin Films % Share

Souce : Analysis based on GTM Research, iSuppli, Photon International and other sources

-Thin film market share increased when polysilicon prices went up, and vice versa.

- The decreasing price differential with c-Si is reducing cost competitiveness of TF

PV production – c-Si dominates

Source: GTM Research

-c-Si has large market share- In thin films, CdTe is the leader-a-Si not far behind- CIGS is makings its presence felt

-China has significant Thin Film capacity-Europe leads in Emerging technologies- a-Si leads in production capacity

North Amer-ica

Europe China/Taiwan Japan ROW0

500

1000

1500

2000

2500

3000

Thin Film capacity in 2012(MW)

CdTe CIGS a-Si Emerging

Standard Crys-talline Si;

19767.5; 83%

Super Monocrys-talline Si; 919.5;

4%

CdTe; 1437.5; 6%

CIS/CIGS; 425.5; 2% Thin film Si; 1338.5; 6%

2010 Cell production by Technology(MW-dc)

Agenda

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What is the future outlook for Thin Films?

5. Conclusion

C-Si dominates in production….

• JNNSM target – 4 to 5 GW of PV production capacity by 2022• Local content requirement in JNNSM(Phase 1)– C-Si : and Modules to be made-in-India– Thin films: No import restrictions

• No local content mandates in state policies

• C-Si Module manufacturing capacity ~ 1500 MW• C-Si Cell manufacturing capacity ~ 600 MW• Thin film manufacturing capacity – Negligible– Moser Baer, Shurjo Energy and HHV Solar

....but, Thin Film dominates in installations

Gujarat State policy- 60-70% thin films

-India bucks the global trend- Thin films grabbed more than 60% market share

Total IREDA NVVN

0

20

40

60

80

100

120

Technology selection under JNNSM

C-Si Thin Films

Type of scheme

Inst

alla

tions

in M

S

India – a good export market for global TF companies

a-Si/μc-Si   CIGS   CdTe

               

Dupont USA   MiaSolé USA   First Solar USA

ECD/Uni-solar USA   Q-Cells(Solibro) Germany   Abound Solar USA

Masdar PV Germany   SolarFrontier Japan      

NexPower China            

Schott Solar Germany            

Sharp Japan            

T-Solar Spain            

-CdTe very popular, First Solar has high market share- a-Si, despite lower efficiencies, have seen lot of companies coming-CIGS also has takers

Note: The above is a partial list of TF companies in India

Agenda

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What is the future outlook for Thin Films?

5. Conclusion

Growth Drivers

Technology-Temperature

coefficient-Spectral response

Financing- Ease of financing through

EXIM/ECB route

Cost- Lower module

cost - Inexpensive

land

1. How is Thin Film Technology doing in India?

3. What is driving the growth?a. Technology

4. What could happen?

Thin Film Vs c-Si

Advantages• Temperature coefficient• Better performance under

diffuse light conditions• Higher Energy Yield • Faster energy payback • Module grounding not

required for frameless modules

Disadvantages

• Conversion efficiencies• Area requirement• Higher BOS requirement• Breakage• Aging behavior not known• Materials shortage/toxicity

25 30 35 40 45 50 55 60 65 70 75 80 856%

7%

8%

9%

10%

11%

12%

13%

14%

Efficiency drop at elevated temperatures

a-Si CdTe CIGS C-Si(Mono) c-Si(Multi)

Temperature(Deg C)

Ccon

vers

ion

efficie

ncy

Temperature coefficient – The TF USP..

- Efficiencies at STC(25 Deg C) is misleading, since that is rare in India- c-Si loses efficiencies faster

- Higher energy yield during peak season

Spectral response - Another differentiator

• Ability to absorb more light in the spectrum, especially junction a-Si

• Better performance under diffuse light Lesser shading effect• Higher energy yield

The result : Higher energy yield for TF

- TF consistently generating more electricity

Source: GTM Research

1. How is Thin Film Technology doing in India?

3. What is driving the growth?b. Costs

4. What could happen?

Module cost : C-Si closing in, but TF still maintains some advantage.

Jun-10Jul-1

0

Aug-10

Sep-10

Oct-10

Nov-10

Dec-10

Jan-11

Feb-11

Mar-11

Apr-11

May-11

Jun-11Jul-1

1

Aug-11

Sep-11

Oct-11

Nov-11

0.650000000000002

0.850000000000001

1.05

1.25

1.45

1.65

1.85

2.05

Spot price(Euro/Wp)

Avg C-Si(Germany) Avg C-Si(Japan/Korea) Avg c-Si(China/Taiwan)CdTe Silicon Tandem(a-Si/Micro-Si) Amorphous Silicon

Euro

/Wp

Source: pvxchange.com

-CIGS price/Wp closer to c-Si

Land and BoS Costs – Disadvantage for Thin Films

BOS cost comparison : c-Si v CdTe

• Land requirement higher for Thin Films• BoS requirement higher because of lower efficiencies

Source: GTM Research$13,000 higher for Thin Film plant

Operations and Maintenance – Higher cost

• More exposed area – more cleaning, more manpower requirement

• More BOS ….–More Strings–More Fuses–More cable

…..more breakdown possibilities

Still….

• Overall cost lower than c-Si– Land cost in India is negligible– Higher BOS cost offset by lower module price– O&M Labor cost low

• Marketing mantra for TF– $/kWh and not $/Wp

1. How is Thin Film Technology doing in India?

3. What is driving the growth?c. Financing

4. What could happen?

Cost of Financing

• Project financing – very challenging to secure

• Indian banks are more comfortable with recourse-to-balance sheet financing

• EXIM, ECB banks offer attractive interest rates

• Even after hedging and insurance, cost of capital at 8-9% as against 13%+ for local financing

Agenda

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What is the future outlook for Thin Films?

5. Conclusion

Thin films domination to continue

• JNNSM - Round 2 : 350 MW allotted– 300 MWp of projects will be in Rajasthan– At least 250 MW expected to go for thin films

• Gujarat – TF likely to dominate

• Rajasthan and Karnataka – TF likely to grab higher market share than c-Si

c-Si manufacturing will require stimulus

• Local content requirement objectives not likely to be met

• Indian c-Si manufacturers will be forced to reduce costs faster to remain competitive with TF

• Policy support critical to develop local PV manufacturing ecosystem

• Rooftop policies could help c-Si because of limited space

a- Si CdTe CIGS

Capital Investments*

$ 2.92 Million / MW $ 1.46 Million / MW $ 2.02 Million / MW

Project timeline 2.5 – 3 yrs 1.5 – 2 years ~ 2 Years

Cost Drivers Raw materials and consumables,CAPEX depreciation

Raw materials and consumables,CAPEX depreciation

Raw materials and consumables,CAPEX depreciation

* Excluding land cost

Will TF be manufactured in India?

-Long lead times and huge investments are challenges-Global excess production capacity is a major roadblock

Agenda

1. Introduction

2. How is Thin Film Technology doing in India ?

3. What is driving the growth?

4. What could happen?

5. Conclusion

Takeaways..

• Thin film technology adopted by majority of Indian developers

• Yield, lower capital cost and better financing options driving TF growth in India

• Local content mandates have had limited impact• Global TF manufacturers benefitting from India’s

solar boom…• … but the Indian TF manufacturing ecosystem is yet

to evolve

Conclusion

• Global market dynamics will have huge impact on the technology selection

• If c-Si prices achieve parity with TF, c-Si will become more competitive

• As long as land is cheap, thin films will rule in India

May the technology with the best $/kWp Win!!

Thank you

Madhavan Nampoothiri

Energy Alternatives India

Mob: 98848-29214

madhavan@eai.in

www.eai.in