Solar & Energy Storage Seminar
Bryan Ekus | IPVEA
IPVEA
Working together to build a stronger global suppliers’ network for the solar PV
and stationary battery storage industries
1st Solar Business Leaders Lunch
May 19th in Shanghai, China during SNEC 2014
Solar Business Dinner Club
Intersolar Events
Solar Power International
6th PV Production and Battery Forum
September in Amsterdam during EU PVSEC
Energy Storage Journal
Energy Storage Journal
Energy Storage Journal (business and
market strategies for energy storage and
smart grid technologies) is a new quarterly
B2B publication that covers global news,
trends and developments in energy storage
and smart grid markets.
www.energystoragejournal.com
Energy Storage
Energy Transmission – Paradigm Shift
• Today – Constant
production
– From production to
consumers
•
•
•
Energy Producer
Distribution Grid
Households /Industry
Me t e r
In t e rfa ce
Me t e r
• Tomorrow – Volatile
production
Co n t ro l
Un it
Me t e r
– Multidirectional load patterns
•
•
•
•
•
Solar
Electric Cars
Wind
Storage
Customer
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Energy Storage - Considerations
•
•
•
•
•
The problem with renewable power is timing.
Solar power peaks in the early afternoon, when the sun is high overhead. Wind power
peaks at night.
Balancing these resources poses a challenge for the electricity grid.
As more power generation from intermittent sources such as solar and wind come into
use.
– short, steep ramps – when the utilities must bring on or shut down generation
resources to meet an increasing or decreasing electricity demand quickly, over a
short period of time;
– overgeneration risk – when more electricity is supplied than is needed to satisfy
real-time electricity requirements; and
– decreased frequency response – when less resources are operating and available
to automatically adjust electricity production to maintain grid reliability.
These factors lead to different operating conditions that require flexible resource
capabilities to ensure grid reliability.
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Countermeasures for Renewable Expansion
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Countermeasures for Renewable Expansion
Increased
Transmission
Capacities
Energy Storage
Expanding
Renewables
Flexiable
Generation
Assests
Demand Site
Management
Smart App‘s
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Countermeasures for Renewable Expansion
Increased
Transmission
Capacities
Energy Storage
Expanding
Renewables
Flexiable
Generation
Assests
Demand Site
Management
Smart App‘s
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Potential: Residential vs. Commercial
Load shifting with storage device is better applicable to private households.
Decentralized Rooftop Market
- Household, Weekdays -
Decentralized Rooftop Market
- Commercial 8am-6pm, Weekdays -
Low correlation with electricity generation
High correlation with electricity generation
 Storage is required to shift the load
 Storage not necessarily required (little potential
to shift load)
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Examples of Storage Technology
Source JRC
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Examples of Storage Technology
Better for energy quality management
Source: EIA 2012
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Examples of Storage Technology
Most relevant to the PV sector is the implementation of electrical storage
devices like lithium-ion batteries
Batteries are expensive – Plug-in hybrid and electric vehicles were to drive
down the cost.
The California Independent System Operators (ISO) created future scenarios of
net load curves to illustrate these changing conditions as they are on track for
33 percent of retail electricity from renewable power by 2020
The Duck Chart
Typical March Day
Conclusions
• Storage systems are an essential part of the energy system
• Broad range of storage options are necessary to meet the requirements
• Systems differ in various parameters like storage capacities, speed,
volume, storage duration and expandability – therefore there is no
perfect solution
• Costs and profitability depend on prices differences in peak/off peak,
uses cases (energy market, long term vs. short term, local conditions)
USA
P.O. Box 771507
Orlando, Florida 32877
Tel:
+1 747 777 2081
Mobile: +1 407 733 1901
ekus@ipvea.com
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