BREEZ ~Battery Range Extender EZ~
efficient
- Double your miles per gallon and get over 100+ MPG on urban and highway driving.
environmental
- Reduce CO2 & Greenhouse Gases Emissions by over 50%.
domestic
- Reduce reliance on imported, finite resources and improve national security by replacing foreign oil with a domestic energy source. Less than 2% of U.S. electricity is generated from oil.
economic
- Fill up for under $1. Driving costs drop to $0.02-$0.04/mile from $0.08-$0.20/mile for gasoline cars.
available
- Use our existing and increasingly renewable electric grid without any new infrastructure.
unlimited
- Never worry about ‘not having enough charge to get home’. With the BREEZ, you will never be stranded. When the BREEZ battery is depleted, you continue to drive as a regular hybrid vehicle.
convenience
- Charge from any standard 110V/15A wall outlet at your work, home, or wherever there is an outlet.



Calculator
| Your Car | Avg Passenger Car | US Average | Avg Pickup Truck/SUV | Regular Prius | |
|---|---|---|---|---|---|
| MPG1 | Calculate the benefits of Prius + BREEZ | 22 | 20 | 18 | 44 |
| Miles traveled per year2 | --- | 15000 | 15000 | 15000 | 15000 |
| Miles traveled per day3 | --- | 30 | 30 | 30 | 30 |
| Pounds of CO2e per year4 | --- | 13860 | 15470 | 17404 | 7026 |
| CO2E Pounds per Mile5 | --- | 0.92 | 1.03 | 1.16 | 0.47 |
| Gallons of Gasoline Used Per Year6 | --- | 679 | 852 | 758 | 344 |
| With BREEZ in your Prius: | |||||
| Improve fuel efficiency by7 | --- | 3.6x | 4x | 4.5x | 1.8x |
| Reduce CO2E per Year by | --- | 57% | 62% | 66% | 16% |
| Cost Savings per Year8 | --- | $1342 | $1579 | $1863 | $338 |
| Gallons of Gasoline Saved per Year | --- | 491 | 570 | 665 | 157 |
| Less Barrels of Oil Imported per Year9 | --- | 25 | 29 | 33 | 8 |
- Fuel economy numbers from EPA, FHWA's National Highway Statistics
- Average number of miles traveled per year from EPA, FHWA's National Highway Statistics
- Average number of miles traveled per day from US Department of Transportation
- CO2e includes all GHG emissions: CO2, CH4, N2O, and HFCs (CH4,N2O, and HFC emissions represent roughly 5-6%of the GHGemissions)
-
Calculated as [Pounds of CO2e/year (from gallons of gasoline) + Pounds of CO2e/year (from electricity)] divided by Annual Vehicle Miles Traveled
Assumes 20.4 pounds of CO2e per gallon, from EPA, FHWA’s National Highway Statistics.
Pounds of CO2e/year (from gallons of gasoline) is calculated as:
[Annual miles traveled * pounds of CO2e per gallon / Vehicle MPG]
Pounds of CO2e/year (from electricity) is calculated as:
Total kWh used per year * state-level emission factor (pounds CO2e/kWh)
- Calculated as [Miles traveled per year] / [MPG]
- As compared to Prius + BREEZ’s average of 125 MPG in combined urban and highway driving.
-
Cost is calculated as annual gasoline cost and annual electricity cost.
Assumes average cost of $3.50 / gallon of gasoline and average off-peak charging rate of $0.08 / kWh.
Annual gasoline cost is calculated as:
[Gallons of Gasoline used per year * average cost of gasoline]
Annual electricity cost is calculated as:
[Miles per day / PHEV max range] * [max kWh pack size] * [Annual miles traveled / Miles per day] * [average off-peak $/kWh]
- * One barrel of oil yields approximately 20 gallons of gasoline
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