FUTURE SERVICE STATION ENERGY
a practical approach
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.1
FUTURE SERVICE STATION ENERGY
2010 key figures
� 59% share of sales� World's largest supplier of cutting-edge
automotive technology
Bosch Group total
� 47.3 billion euros in sales� 283,500 associates
including 34,200 in research and development
AutomotiveTechnology
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.2
Industrial Technology
Consumer Goods and Building Technology
1 Including other segments
� 14% share of sales� World's leading manufacturer of large gearboxes
and of powertrain, packaging, and process technology
� 27% share of sales1
� World's largest power tool manufacturer, leading the field in household appliances, heating and cooling, and security systems
FUTURE SERVICE STATION ENERGY
Photovoltaics (PV)
Thin Film Products
Multi Crystalline Mono Crystalline CIS
Crystalline Products
a-Si/µm-SiMono cells
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.3
Multi Crystalline Mono Crystalline CISa-Si/µm-SiMono cells
FUTURE SERVICE STATION ENERGY
A good quality module with a flexible, i.e. modular
and scalable inverter
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.4
FUTURE SERVICE STATION ENERGY
Grid Tie
GRID TIE inverter
DC
AC
12x Bosch 60M240
2500Wac
Normal AC grid
230V 50Hz
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.5
Energy is taken from the PV panels by DC to the GRID-TIE inverter
If the grid is on, the GRID-TIE inverter senses this, synchronizes to it
and feeds the energy into the AC grid.
Energy is used in the house first, excess flows to the grid. If more electricity is used than produced by the PV, electricity is
drawn from the grid. This is also known as NETT-METERING. It translates to an electricity saving and effectively
uses the grid as its “battery”
If the grid fails or is outside of the set specifications, frequency and
voltage, the GRID-TIE inverter switches off within 0.2 seconds. No grid, no power
METER
FUTURE SERVICE STATION ENERGY
Grid Tie with Back up
GRID TIE inverter
DC
AC
12x Bosch 60M240
2500Wac
ISLAND inverter
Normal AC grid
230V 50Hz
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.6
Energy is taken from the PV panels by DC to the GRID-TIE inverter
If the grid is on, the GRID-TIE inverter senses this, synchronizes to it and feeds the
energy into the AC grid. This grid can be supplied either by the public grid
or by the GENSET, with the energy flow being controlled by the ISLAND inverter.
Energy is used in the house first, excess is taken by the ISLAND inverter., to charge the
battery, from where it also takes energy if no or too little energy comes from the
PV. Additional energy can be fed into or pulled from the grid. This is freely programmable.
Power even if the grid is down
Smaller batteries than completely OFF-GRID
Additional autonomy due to GENSET
METERinverter
Battery
DC
GENSET
FUTURE SERVICE STATION ENERGY
Pick and Pay Longmeadow
… causing this effect on the electricitymeter and thereby a saving on themonthly electricity bill.
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.
PV supply feeding into theinternal grid … Things to remember: No battery back up (optional eg IT), feeds in
during peak loading (HVAC), thereby reducing peak demand.
7
FUTURE SERVICE STATION ENERGY
4x SB2500 – different modules – side by side
4 1 3 2
S S SF SW97TF 220P 180M 220P
kWh 9765 9614 9644 8889h 10941 11313 11700 11560
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.8
kWh/h 0.89 0.85 0.82 0.775.02% 3.10% 7.20%
10.52%
16.07%
FUTURE SERVICE STATION ENERGY
FIT? Germany vs. Brazil
33.165 MWp31.03.2013
-1.8% per month (05 – 07.2013)
2500 – 3500 MW / year
http://www.bundesnetzagentur.de
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.9
1 000 roof program
1 000 000 roof program
Negative electricity prices on the day ahead market!Workday: 60GWp requirement, 36GWp from PV!Separate fact from fiction …
FUTURE SERVICE STATION ENERGY
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.10
Buying cheap nuclear power from France?
FUTURE SERVICE STATION ENERGY
Brazil as a better guideline for SA?
1. Below 1MW in one location2. Below 1MW more than one location, but one Tax number 3. Above 1MW separate rules as IPP
- Net metering- Net use more than produced, pay R/kWh- Net use less than produced, kWh credits- kWh credits valid for 3 years (seasonal variations)
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.11
- System sizes self regulating- Incentive for peak shaping / peak shaving self regulating- Energy saving self regulating- New net metering capable meter supplied by PV project, installed by utility, takes ownership of meter- modernizing of metering infrastructure – no cost to government- extra capacity online – no cost to government- extra income – no cost to government-
FUTURE SERVICE STATION ENERGY
Pitfalls:
- Guarantee?
- Micro cracks?
- Quality of the installation
- electrical – DC: wiring loops, lightning induces
high voltages. Short circuit proof?
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.12
high voltages. Short circuit proof?
- AC: surge arrestors?
- structure – tied to roof or substructure?
- business case based on kWh…
- kwh is not equal to kWp!
and and and
FUTURE SERVICE STATION ENERGY
Thoughts:- guideline: 50 – 75 % of base load …- Shops will make greatest contribution ?- fridges / freezers ? - compressor / pumps / car wash - … what don’t we know?- boils down to getting proper data first …- ESKOM does not allow for net metering, but who supplies you and
what do they say?
SE/SZA | 09/05/2013 | © Robert Bosch GmbH 2013. All rights reserved, also regarding any disposal, exploitation, reproduction, editing,
distribution, as well as in the event of applications for industrial property rights.13
what do they say?
GOOD DATA makes for GOOD DECISIONS!
Who can you trust? References? It’s a new industry …
FUTURE SERVICE STATION ENERGY
Thank you for your attention.
C/CC | 14.04.2011 | © Robert Bosch GmbH 2011. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
14