general introduction csp technologies and grid management introduction csp... · here, heat is...

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General introduction CSP Technologies and grid management Bernhard Hoffschmidt, DLR Institute of Solar Research

Outline

1. CSP Technologies

2. Characteristics of CSP

3. Market und Cost Development

4. Benefits for a Mix of PV und CSP

5. Conclusions

> IREC2017 > Prof. Robert Pitz-Paal > 21-23.3.2017 DLR.de • Chart 2

Outline

1. CSP Technologies




5. Conclusions


Concentration

Sunlight

HEAT Turbine

ELECTRICITY

Sunlight

ELECTRICITY

Thermal Heat Storage

Photovoltaics (PV)

Concentrating Solar Power

(CSP)

Concentrating Solar Technologies

SOLAR FUELS 4

Vorführender

Präsentationsnotizen

In photovoltaic, the sunlight is directly converted to electricity using semiconductors. The photons create excited electrons and remaining holes which are separated and hence a voltage is buildup. The principle in concentrating solar power is different. Here, heat is produced by concentration and absorption of solar radiation. This heat can be used, similar to the heat produced in a fossil of nuclear power plant, to drive a turbine and generate electricity. In contrast to PV, in CSP there is the possibility to store the heat economically in a thermal heat storage before transforming it to electricity.

Concentrating Solar Technologies

Solar Concentrating Technology is able to produce clean PROCESS HEAT at any temperature

5

Solar thermal power plants

CSP-System

6

Outline

1. CSP Technologies




5. Conclusions


Solar Resource Direct und diffuse Radiation Block size mWatt to some 100 MW Installation: everywhere (roof top etc.) Capacity : 700 – 2000 full load hours Back-up Capacity external (e.g. gas turbine) Inst. Power (2015) 227 GW LCOE 0,03 – 0,13 €/kWh

Direct Radiation 10 MW to some 100 MW flat unused land 2000 – 7000 full load hours therm. Storage / fossil backup 5 GW 0,06 – 0,20 €/kWh

Characteristics PV CSP


Thermal Storage vs. Electric Storage

CSP with thermal storage and fossil back provides reliable dispatchble power at no additional cost

2000 h

+2000 h

η >95 %

η = 75%

200 h

Firm capacity


CSP only suitable in areas with high direct normal radiation > IREC2017 > Prof. Robert Pitz-Paal > 21-23.3.2017 DLR.de • Chart 10

Outline

1. CSP Technologies




5. Conclusions


Source: Leoni / Heliokon Analysis, 2016

Market forecast CSP 2025

0

10

20

30

40

50

60

70

2010 2015 2020 2025

Inst

alle

d po

wer

(cum

ulat

ed, G

We)

Year historisch Heliokon

40% 60%

2020 Tower

2020 Trough 60%

40% 2025 Tower

2025 Trough

Significant change in market share between Power Tower and Trough

5 GWe installed in 2015

8.5 GWe will be installed until 2020 Currently 2 GWe under construction

18.5 GWe planned until 2025

Confirmed Planned

Tower

Trough


Cost for CSP and PV have dropped strongly with their deployment • CSP deployment is smaller than PV today, thus it still has higher costs

> IREC2017 > Prof. Robert Pitz-Paal > 21-23.3.2017

Energy sales price PV

Energy sales prices CSP

2014

2007

2014

Module price PV

DLR.de • Chart 13

CSP Market Perspectives until 2025

• Estimated installed capacity until 2025: 10 - 20 GW (plus 5-15 GW)

• Accumulated investment in CSP until 2025 25 – 75 Billion EUR

• Annual Volume on O&M Contracts in 2025: 1 – 2 Billon EUR per Jahr

• Additional Capacity in the field of process heat


Outline

1. CSP Technologies




5. Conclusions


High shares of cheap Wind and PV capacity lead to a strongly fluctuating residual load that need to covered by other technologies


PV and CSP

• Two technologies that complement each other perfectly in many regions of the world, in particular if large shares fossil fuel can not be used

Scenario for Electricity Supply for North Africa for 2015 based on high shares of renewable energies *

*Results from the EU Better Study (www.better-project.net)


Outline

1. CSP Technologies




5. Conclusions


Conclusions

• PV and CSP with storage and hybridization are complementary technologies:

• PV: provides power,

• CSP: Energy + secured power

• PV market is booming since today often the most cost-effective option

• CSP is at the beginning of the learning curve:

further cost reduction is expected



Thank you for your attention contact: [email protected]

general introduction csp technologies and grid management introduction csp... · here, heat is...

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