James Sturch Hybrid Storage System

7/28/2019 James Sturch Hybrid Storage System

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Hybrid Storage System Overview



Conventional Grid-Connect PV Installation



“I thought with all that solar on the roof we wouldstill have power if the grid failed”

Conventional Grid-Connect PV Installation









Load Demand Shaping



Consumption Control



• Domestic homes with unreliable grid

Medical

Bushfire

Floods

Storms

Power security

Power price guarantee

• To choose not to export PV power

• For Peak Demand shaping

• For Power Management & Control• Off-Grid Supply

• UPS Supply

So Why Involve Storage..?



Energy Storage = Energy Choice

So Why Involve Storage..?



It’s Just The Beginning…



Price is Dropping…



Borrowed Technology…



Flow Batteries

Zinc hybrid cathode

Lithium-ion batteries

Sodium-ion

Magnesium-ion

Lead Acid

AGM Gel Batteries

Developing Storage… Zinc is Cheaper than Lithium, Lithium is more than Lead, Lead is heavy, Zinc,

Lithium & Magnesium are light, lead is 85% recycled, Zinc, Lithium. Sodium &

Magnesium all require separate cell management, Discharge rates vary..??..??



Money Perspective…

Global Annual Investment in Renewable Energy topped $269 Billion in 2012,

5x more than in 2004….



Market Perspective… • Current Global PV Storage Industry is $200 Million (2012)

• According to IMS Research the industry will grow 100% year on year

• By 2017 PV Storage is expected to be at 7GW capacity

• By 2017 PV Storage is expected to be worth $19 Billion

• PV Storage installation will be lead by Germany 70% by 2017



Market Perspective… • Research institutions are focusing on Storage Technology;

• US Energy Department’s SLAC National Accelerator Laboratory &

Stanford University have designed a low-cost, long-life “flow” battery.

•

CSIRIO developed the UltraBattery™ technology has been licensed tothe Furukawa Battery Co in Japan.

• Power-One have teamed up with Panasonic to develop lithium-ion

battery energy storage systems for the residential and non-residential

markets worldwide.

•In Germany PV Storage will be subsidized up to €660/kW of PV in 2013and have a maximum capacity of 30 kW

•Californian SGIP Programs gives $2 p/Watt credit for energy storage



Market Perspective… • Commercial Installation Trials;

• SolarCity in the USA has installed over 100 trial systems using 9kW &

18kW – Systems are now available to lease, Tesla & SolarCity.

• Panasonic & Hitachi are installing PV Backed storage systems in Japan.

• Xtreme Power in the US do utility scale but are also about to launch

domestic trials.

•AEP (USA Utility) working with S&C Electric to develop community

energy storage systems

•GE has linked with Arista Power for Nickel Salt Durathon PV BackedStorage solutions.

•PG&E have just installed a 4 MW Yerba Bueba Renewable Energy Battery

Storage Pilot in Northern California.



Stored Energy Control of

AC IN

AC OUT

AC OUT

Control of

AC IN AC OUT

Complete System Control

Loads

Control of

AC OUT

Control of

DC IN

DC OUT

DC OUT

Additional

Device Control

Monitoring

of Other

DC IN



Grid-Connect Battery Backup Example..



Steavenson Falls – Power Router

Technology Employed:

• Nedap PowerRouter (3xPR50S) power inverters for grid

feed and additional hydroelectric supply.

• PoweEx 245Ah 2V Gel battery cells (x8) for grid and hydro

turbine fail backup power.

• DC rectification power conversion box (x3) for conversion

of hydro output to DC for inverter grid feed management

• Selectronic SP Pro inverter including Grid fail changeover

switch for load supply and battery management.

The SP Pro system is flexible and allows for the following

configuration options:

• Import and export power from the mains grid

• Charge batteries from both the hydro generator and

mains grid

• Power the load from the hydro turbine or from thebatteries



Bega Library – Selectronic

• 20kW PV Array - 108x SUNTECH 190W Panels Library roof

• 15kW 3 phase output - 3x Selectronic SPMC 481

• MPPT Charge Controllers - 6x Midnight 150’s

• 48V 4500Ahr Battery Bank - 72x 1500AH 2V Cells



Thankyou....

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James Sturch Hybrid Storage System