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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  

 

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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  

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Inverter  Size  kW/kVa  

5  

Inverter  Size  kW/kVa  

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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  

6.9  

*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  


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