1. Gianni Operto Advisory Board
The Solar Night at Your Home
Gianni Operto Advisory Board
„Do you remember why the Internet was originally invented? US Military wanted to create a flexible and non-destroyable infrastructure for their IT. WE build the internet of electrical power with distributed Energy storage combined with PV generation.”

2. Solar Power - Cheaper than grid for German home owners
PV levelized
cost of energy (ct /kWh)
PV levelized cost of energy excludes grid costs
We Network the Sun
17/02/19

3. Solar Power - Cheaper than grid for German home owners
Solar feed-in tariff Germany (ct/kWh)
PV levelized
cost of energy (ct /kWh)
PV levelized cost of energy excludes grid costs
We Network the Sun
17/02/19

4. Solar Power - Cheaper than grid for German home owners
Solar feed-in tariff Germany (ct/kWh)
PV levelized
cost of energy (ct /kWh)
25ct
End-user electricity cost (ct/kWh)
PV levelized cost of energy excludes grid costs
We Network the Sun
17/02/19

5. Today, about one Million PV units installed on private homes – at a total stock of about 18.7 Million single family homes
Source:
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17/02/19

6. 1.515 Million PV units, with 50% between 3 and 10 kWp
Distribution of PV units in Germany up to 1,000 kWp
Status: August 2015
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17/02/19

7. Home owners look for more independence
Maximize self-consumption
Independence from utility and from sunshine
WYSIWYG
Know your power source and hedge its cost
Emergency Power
In case of grid failure, storage will support power needs
… but storage is currently hardly a profitable business left with just that application
We Network the Sun
17/02/19

8. The Initial Problem Summary
PV on private homes increasingly attractive for self-consumption
Maximization of self-consumption essential
Storage not profitable
Is there any other problem maybe???
Can it be turned into a business?
Grid stability increasingly challenging?
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17/02/19

9. Supply and demand need balancing
< must always be equal >
Demand
The grid frequency of 50Hz will change if supply deviates from demand =
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17/02/19

10. Decentralized Energy Systems have accumulated risks, too
Frequency deviation on 28/10/2013, storm ”Christian“
50 Hertz
Nominal frequency
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17/02/19

11. Supply and demand need to be matched every moment
Power plant failure Frequency Containment Reserve Frequency Response Res Replacement Res.
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17/02/19

12. 5. Kostenwahrheit
Increasing Demand for Flexibility

13. Weekly auctions, symmetric capacity market, 7x24h, pay-as-bid
Frequency Containment Reserve
Weekly auctions, symmetric capacity market, 7x24h, pay-as-bid
Requires prequalification
High price fluctuations, but y/y rising since >10 yrs
We Network the Sun
17/02/19

14. Distributed and synched storage supports energy transition
Autarchy and green feeling for home owner
Reliable returns for investor
Future proof service for grid operators (TSO)
Caterva VPP
We Network the Sun
Unique combination of
Distributed storage
Connected to home owners PV and grid
Synchronized on a second by second base by grid frequency (50 Hz)
To optimize asset use for all stake holders
Autarchy and green feeling for home owner
Future proof service for grid operators (TSO)
Dividends for asset investors
17/02/19

15. Virtual Power Plant Prequalified for FCR
Caterva
Control Center
Monitoring
Operations center
Grid operator
TenneT TSO
UMTS
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17/02/19

16. Caterva provides entirely new business model to utilities
Current situation
Self-suppling consumer mostly lost for utility
Utility marketing of PV unit and storage provide gross margin - once
Caterva offer to utilities
Sales of Caterva System generates recurring commission from existing customers
Customer retention for 20 years
Gross margins per household increasing
We Network the Sun
17/02/19

17. Your 7x24h-Sun at Home
Plain no-risk package and maximum benefit through lifelong free power
One-stop solution combining PV, Caterva-Sun and maintenance agreement provide hassle-free security to customer
Partnering with local utility
Increases credibility
Eliminates resistance
Multiple benefits to original power suppliers
Image: Innovation, customer focussed
Services (distribution and sales/installation/maintenance)
recurring commissions and long-term customer retention
We Network the Sun
17/02/19

18. Successful participation in FCR market since August 2015
Prequalification
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17/02/19

19. Yes, we can! System- integrated photovoltaics Private customer Utility
Customer retention
Innovation
New margins
Private customer
Free power
Independence
Supply from PV
Maintenance included
System-
integrated
photovoltaics
Caterva
Energy management
Strong partnerships
Grid operator (TSO)
Cost-attractive FCR
We Network the Sun
17/02/19

20. www.caterva.de Markus Brehler, CEO mb@caterva.de
Gabriele Ellenrieder, IR
Dr. Roland Gersch, CTO

21. Backup Slides
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17/02/19

22. Grid Frequency
:45h UTC

23. Long-term stable power supply needs assured power
Nuclear power
Others
Bio mass
Coal
Gas
Wind
Lignite
Water
Solar
Maximum load Germany
We Network the Sun
17/02/19

24. flexibility today mostly provided by coal plants
Source: Fraunhofer 2015
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17/02/19

25. Complementary power is simple and provides maximum benefit
Caterva offer to private customers
PV unit is tailor-made for the individual annual power consumption
Caterva-Sun – energy storage with secure m2m communication and smart controller
Maintenance agreement
Service agreement – Energy management
Benefit of private customers through Caterva-Sun
Time-independent supply up to self-produced energy – lifelong free power
20 years of maintenance
Annual bonus payment
Active contribution to energy transition
We Network the Sun
17/02/19

26. Attractive gross margins from intraday-exchange
Energy shift through storage enables sustainable gross margins at the EPEX
Since May 2015, Caterva energy management is fully-automatically connected
Intraday-trade with 15 minute-contracts
Cost-optimized state-of-charge management
Energy shift
Analytics-based arbitrage business
Inclusion of other flexibility assets foreseen
We Network the Sun
17/02/19