Green Cubes Technology - Interactive Online BBU TCO Calculator  
Please fill in the light green cells indicated with an arrow STEP 1: NO. OF PACKS AND LOCATION  
kWhr backup required   Enter number of KWh needed for you application  
 GBU model
  Select the GBU model  
Lead Acid Battery Model
  Select the Lead Acid Model to compare   
Power System Life (years)   Enter the DC Power System life  
           
           
           
Main Capital Costs VRLA Back-Up Li-Ion Back-Up   STEP 2: WHAT ARE YOUR MAIN CAPITAL COSTS?  
Estimated Battery life (years)   Enter your expected UPS lifetime  
Number of KWh per battery (48V string)   Enter your expected lead-acid battery lifetime  
Number of batteries (48V strings)   Enter the price per KWh for lead-acid battery and the corresponding GBU lithium-ion battery  
Total number of batteries in the life of UPS    Enter the price for the installation of a  lead-acid battery and the corresponding GBU
lithium-ion battery 		 
Cost Per Battery (per 12V Mono Block for LA, Per GBU for Li-Ion)    
Price of battery Per KWh      
Installation cost      
TOTAL MAIN CAPITAL COSTS      
           
Annual Maintenance Costs VRLA Back-Up Li-Ion Back-Up   STEP 3: WHAT ARE YOUR MAINTENANCE COSTS?  
No. of maintenance days per year   Enter the number of maintenance days per year  
Labour cost per hour   Enter labor rate in dollars/hour  
No. of hours spent on maintenance per day   Enter the amount of time needed per day for maintenance. Example: 15 minutes per battery testing
using 2 men in a 24 hour operation = 15 minutes * 2 people / 60 minutes = 0.5 hrs per day 		 
TOTAL MAINTENANCE COST PER YEAR    
           
Annual Electricity Costs for Charging & Cooling VRLA Back-Up Li-Ion Back-Up   STEP 4: HOW MUCH ENERY WILL YOU SAVE?  
Electricity cost/KWh   Enter your local energy rate in kWh/dollar  
No. of charge/discharge cycles per month   Enter the number of charge discharge cycles per month  
Battery efficiency      
UPS Electricity cost      
Cooling consumption cost      
TOTAL  ELECTRICITY COST PER YEAR      
           
Annual Real Estate Cost  VRLA Back-Up Li-Ion Back-Up   STEP 5: HOW MUCH SPACE WILL YOU SAVE?  
Selected Battery height      
Battery Pack space requirement in Rack Units      
Battery volume savings in 1U increments   -      
Real estate cost per 1U per month    Enter your rent cost per 1U per month  
TOTAL REAL ESTATE COST PER YEAR      
           
Total Opex Payments over System Lifetime   STEP 6: SUBMIT COMPLETED FOR FOR EMAILING  
        You can print the results after completion using the PRINT button at the top and bottom of this page
Total Capex/Opex Payments over System Lifetime   If you would like us to send you a copy of your completed form please enter the details below  
         
Total Savings for Li-ion over System Lifetime    
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