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Solar 2013 Presentation PV + Storage May 2013    

*please refer  to  important  no0ces  at  the  end  of  this  document.  

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ZEN Energy  –  Freedom  PowerBank     2  


PowerBank R&D  and  Manufacturing  Facility  

Operating System Power

ZEN BOS3 5kW Bi-Directional

Energy Voltage

20kWh’s 48V

Dimensions

800mm x 600mm

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Battery System Cycle Life

16x400Ah Li-Ion Phosphate Min 2000 Cycles 80% DOD

PV Integration

Min 3000 Cycles 70% DOD Any PV System


The Benefits  of  ResidenBal  Energy  Storage  (Li-­‐Ion)  

The Benefits  of  Li-­‐Ion  Residen2al  Energy  Storage   are  many:    

1)  Small Footprint  (20kWh’s  in  800x600mm  format  –  Domes2c  Fridge)   2)  Aesthe2cally  Pleasing  (White  goods  appliance  for  laundry  or  garage)   3)  Energy  Security  (Complete  backup  power  available  if  Grid  failure)   4)  Take  advantage  of  Time  of  Use  Metering  and  Load  shiX  Power   5)  Self-­‐Consump2on  of  Solar  Generated  Power   6)  Resolve  Power  Quality  Issues  (SWER  lines/Regional)   7)  Modern  Off-­‐Grid  Living  (coupled  with  PV  and  Back-­‐up  Generator)  

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Off Grid  Economics  of  Li-­‐Ion  Energy  Storage  

Modern “Off-­‐Grid”  Living  (Rise  of  the  “Eco  Village”)   Utility to connect the Grid

$100,000 per km and then you have to pay power bills

Solar Energy System 7kW

$15,000

Freedom PowerBank 20kWh

$29,500

Backup Generator 10kVa

$10,000

Installation

$5,000

$59,500 Total and no power bills If fully utilised over 20 years the system can generate approx. 215,000kWh’s for a combination of immediate consumption and excess to storage for night use. This calculates to a simple cost of power when amortised over a 20 year life of $0.28c/kWh **Over or underutilisation will change this calculation

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The Case  Study  for  Grid  Connect  ResidenBal  Energy  Storage  

Case Study  Overview   Home with Total Consumption of approx. 15kWh’s per day (14.674) Daytime Consumption – 2.5kWh’s Night Time Consumption – 12.5kWh’s Cost of Power of $0.30 c/kWh FiT Available of $0.08 c/kWh

Is there  a  case  for  Residen2al  Energy  Storage?     Do  Nothing  -­‐  Cost  of  Power  over  20  years     =  15kWh’s  per  day  x  20  years  x  $0.30   =  $32,850     6  


BaMery Management  is  very  important  

Case Study  is  a  good   example  for  Bagery   Management   Storing 12 kWh’s a day is 60% DOD of 20kWh capacity which provides for a long cycle life. (13-14 years) @ 1 full cycle per day in a home.

40000

Cycle Life  Vs  Depth  of  Discharge   35000  

35000

30000 C y c l e   L i f e    

25000 21000  

20000

15000 13000   10000  

A good BMS with cell optimisation and active balancing could take this out much longer.

8800

5000 2200  

2250

7

3700

5800

0 100  

2700

4400

90

80

70

60

50

40

Depth of  Discharge  %  

30

20

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The Case  Study  for  Grid  Connect  ResidenBal  Energy  Storage   5kW  PV  System  Scenario  (FiT)   Genera0on   Feed-­‐In  Percentage   Feed  In  kWh's   Consumed  kWh's  Daily   20  Year  Reduced  Consump0on  

Reduced Consump0on  Benefit   20  Year  FiT  Benefit   Total  Benefit   Investment  Benefit   5kW  PV  System  Scenario  (FiT)   Genera0on   Feed-­‐In  Percentage   Feed  In  kWh's   Consumed  kWh's  Daily   20  Year  Reduced  Consump0on  

Reduced Consump0on  Benefit   20  Year  FiT  Benefit   Total  Benefit   Investment  Benefit  

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$11,000 20  kWh's/Day   87%   17.5   $0.08   $1.40  Benefit  Daily   2.5   88,870.20   $0.30   $26,661.06   $5,475.00   $10,220.00   $15,695.00   low  due  to  low  FiT  and  low  day  0me   $4,695.00  consump0on   $11,000   20  kWh's/Day   87%   17.5   $0.25   $4.38  Benefit  Daily   2.5   88,870.20   $0.30   $26,661.06   $5,475.00   $31,937.50   $37,412.50   low  due  to  low  FiT  and  low  day  0me   $26,412.50  consump0on  

5kW PV  System  Scenario  (No  FiT)   Genera0on   Feed-­‐In  Percentage   Feed  In  kWh's   Consumed  kWh's  Daily   20  Year  Reduced  Consump0on  

Reduced Consump0on  Benefit   20  Year  FiT  Benefit   Total  Benefit  

$11,000 20  kWh's/Day   87%   17.5   $0.00   2.5   88,870.20   $0.30   $26,661.06   $5,475.00   $0.00   $5,475.00  

Investment Benefit  

-­‐$5,525.00

20kWh Usable  Storage  System   Cost   20kWh  Storage  Benefit   Daily  Benefit   20  Year  Benefit  

20kWh Usable  Storage  System   Cost   20kWh  Storage  Benefit   Daily  Benefit   20  Year  Benefit  

$0.00 Benefit  Daily  

$29,500 16  kWh's   $0.22  kWh's   Gain   $3.52   $25,696   -­‐$3,804  Investment  Benefit  

$20,000 16  kWh's   $0.22  kWh's   Gain   $3.52   $25,696   $5,696  Investment  Benefit  


The Case  Study  for  Grid  Connect  ResidenBal  Energy  Storage  

Table Summary   5kW PV System - $11,000 investment generating 20kWh’s per day over 20 years FiT @ $0.08c/kWh = $15,695 return (Benefit = $4,695) FiT @ $0.25c/kWh = $37,413 return (Benefit = $26,413) FiT @ $0.00c/kWh = $5,475 return (Benefit = -$5,525) done to utilise storage instead 20kWh Energy Storage System dispatching 16kWh’s per day @ $0.22c Benefit over FiT If Storage costs $29,500 then = $25,696 return (Benefit = -$3,804) If Storage costs $20,000 then = $25,696 return (Benefit = $5,696) Basically need a higher cost of power and/or a lower cost of storage to be viable OR a subsidy to bring it to a justifiable level.  

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Game Changer  for  ResidenBal  Energy  Storage  

DNSP &  Retailer  Par2cipa2on   •  Draft Energy White Paper states that for every 2kVa Air Conditioner installed it requires between $5-$10k in infrastructure to support •  This equates to $2.5-$5k per kVa of support through the peak demand period. •  Our BOS3 (Battery Operating System) is built on “Distributed Computing Architecture" and amongst the first of its kind in the world •  Allows DNSP’s and Retailers to control communities of 100’s or 1,000’s of our storage systems around the grid to work together to solve grid constraint issues and realise Utility value streams and partner with consumers. •  (VAR Control, Frequency Control, Voltage Control, Load Shifting, Renewable smoothing etc. etc. up to 16 functions) •  There are 3 key software layers to our BOS (3rd Generation) 1) Command & Control System (Fleet Control) 2) Data Analytics & Decision Support Intelligence 3) Component Optimisation (Active Balancing BMS)   10  


Game Changer  for  ResidenBal  Energy  Storage  

DNSP &  Retailer  Par2cipa2on   •  When all value streams are realised by all parties then it completely changes the value proposition. •  Opens up for the systems to be heavily subsidised in areas of costly Grid Constraints where it is MORE cost effective to introduce Storage than augment the grid  

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The Case  Study  for  Grid  Connect  ResidenBal  Energy  Storage   Peak  Cost  of  Power   Off  Peak  /  Solar  Cost  of  Power  

$0.45 $0.08  

ZEN Home  Energy  Storage  20kWh  

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ZEN Home  Energy  Storage  20kWh  

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ZEN Home  Energy  Storage  20kWh  

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Inverter Size  kW/kVa  

5

Inverter Size  kW/kVa  

5

Inverter Size  kW/kVa  

5

Subsidy per  kW/kVa  

$0

Subsidy per  kW/kVa  

$2,000 Subsidy  per  kW/kVa  

$4,000

Total Subsidy  

$0

Total Subsidy  

$10,000 Total  Subsidy  

$20,000

System Cost  to  Consumer  

$25,000 System  Cost  to  Consumer  

$25,000 System  Cost  to  Consumer  

$25,000

Aaer Subsidy  Cost  

$25,000 Aaer  Subsidy  Cost  

$15,000 Aaer  Subsidy  Cost  

$5,000

Cost per  kWh  of  Storage  

$1,563 Cost  per  kWh  of  Storage  

$938

Cost per  kWh  of  Storage  

$313

Daily Return  (Capacity  *  Price  Diff)  

$5.92

$5.92

Daily Return  (Capacity  *  Price  Diff)  

$5.92

Annual Return    

$2,161 Annual  Return    

ROI Years  -­‐  ZEN  Home  Energy  Storage  

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Daily Return  (Capacity  *  Price  Diff)  

$2,161 Annual  Return    

ROI Years  -­‐  ZEN  Home  Energy  Storage  

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*Assumes 80%  Depth  of  Discharge  used  (10kWh's  @80%  =  8kWh's  /  20kWh's  @80%  =  16kWh's)  

ROI Years  -­‐  ZEN  Home  Energy  Storage      

**Drae Energy  White  Paper  states  that  for  every  2kVa  Air  CondiBoner  installed  it  requires  between  $5-­‐$10k  in  infrastructure  to  support   **This  equates  to  $2.5-­‐$5k  per  kVa  of  support  through  the  peak  demand  period.  

 

 

***Assumes under  volume  produc0on  retail  pricing  of  the  Freedom  Powerbank  will  reduce  to  $1,250/kWh  from  current  $1,500/kWh  

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$2,161 2.3  


The Case  Study  for  Grid  Connect  ResidenBal  Energy  Storage  

Table Summary   Peak Power Cost $0.45 (higher peak cost) Off Peak/Solar Cost $0.08 Energy Storage Cost 20kWh’s @ $25,000 (interim price) Shifting 16 kWh’s per day (80% DOD) Zero Subsidy = 11.6 years ROI (early adopters) $2,000kVA Subsidy = 6.9 years ROI (more mainstream) $4,000kVA Subsidy = 2.3 years ROI (no brainer – rapid uptake) **Plus other values of Energy Security / Power Quality etc. for the home  

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UBlity Distributed  Energy  Storage  System   PCS  Unit  with   bi-­‐direc0onal  inverter

Bageries, node  boards,     bagery  trays

Cutaway View

Industrial CPU,     with  licenses  for  BOS3

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Energy/Power SubModule


UBlity Distributed  Energy  Storage  System  

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Prince Charles  InspecBon   Royal  Endorsement   ZEN  was  selected  as  1  of  only  4  companies  to  present  to  Prince  Charles  (November  2012)

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Looking for  Quality  ZEN  Franchisees  

We are  looking  for  Quality  Installers  to   become  ZEN  Franchisees     Par0cularly  in     Vic  (Metro  Melbourne  and  Eastern  Regional),     NSW   WA     www.zenenergy.com.au     18  

1130-richard-turner-zen-solar-2013-presentation  
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