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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 LunchMay 19th in Shanghai, China during SNEC 2014
Solar Business Dinner ClubIntersolar EventsSolar Power International
6th PV Production and Battery ForumSeptember in Amsterdam during EU PVSEC
Energy Storage JournalEnergy 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 Journal
Energy Storage
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Energy Transmission – Paradigm Shift
• Today – Constant production
– From production to consumers
• Energy Producer • Distribution Grid• Households /Industry
• Tomorrow – Volatile production
– Multidirectional load patterns
• Solar• Electric Cars• Wind• Storage• Customer
Meter
Meter
ControlUnit
Interface
Meter
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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
Expanding Renewables
IncreasedTransmission Capacities
Energy Storage
FlexiableGeneration
Assests Demand
SiteManagemen
tSmart App‘s
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Countermeasures for Renewable Expansion
Expanding Renewables
IncreasedTransmission Capacities
Energy Storage
FlexiableGeneration
Assests Demand
SiteManagemen
tSmart App‘s
11
Potential: Residential vs. Commercial
Decentralized Rooftop Market- Commercial 8am-6pm, Weekdays -
Load-shift
High correlation with electricity generation
Storage not necessarily required (little potential to shift load)
Low correlation with electricity generation
Storage is required to shift the load
Load shifting with storage device is better applicable to private households.
Decentralized Rooftop Market- Household, Weekdays -
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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
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
Examples of Storage Technology
Typical March Day
The Duck Chart
• 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)
Conclusions
