Updated 05/03/2026
Interesting Energy Conversions
List of really cool and interesting energy conversion tools.
Heat Pump Break-Even COP
Typically the COP of an air source heat pump will drop as outside temperatures go down. By knowing the break even COP you can then compare that to your heat pump's data sheet to determine at what temperature it would be cheaper to operate off of natural gas.
Heat Pump Break Even & Emissions
Heat Pump vs. Fossil Fuel Analysis
Required Break-Even
--
COP
CO2 Emissions (per M-BTU)
Fossil Fuel Baseline
-- lbs
Heat Pump (3.0 COP)
-- lbs
PV String Size Calculator
Min Operating Temp: 5°F (-15°C)
Max Panels Per String
--
Panels
Single Panel Voc (-15°C)
-- V
Total String Voltage
-- V
EV Range & Dynamics
Multi-Planetary Environment Analysis
Estimated Range
--
Miles
Local Gravity
9.81 m/s²
Required Power
-- kW
Consumption
-- Wh/mi
EV Charging Energy
Method: Trip, MPGe and Utility Rate
Est. Draw
--
kWh
Total Cost
--
USD
(-- loss)
Elec. Cost per Mile
$0.00/mi
Break-Even Rate
-- ¢/kWh
Gasoline ($4.43/gallon)
$0.00
Societal (True Cost $15.00/gallon)
$0.00
EV Charging Energy
Method: Trip, Meter and Utility Rate
Efficiency
--
mi/kWh
Total Cost
--
USD
(Based on total charging station draw)
Elec. Cost per Mile
$0.00/mi
Break-Even Rate
-- ¢/kWh
Gasoline ($4.43/gallon)
$0.00
Societal (True Cost $15.00/gallon)
$0.00
EV Charging Energy
Method: Trip, Efficiency and Utility Rate
Est. Draw
--
kWh
Total Cost
--
USD
(-- loss)
Elec. Cost per Mile
$0.00/mi
Break-Even Rate
-- ¢/kWh
Gasoline ($4.43/gallon)
$0.00
Societal (True Cost $15.00/gallon)
$0.00
True Cost of Gasoline
The "Hidden" Price Tag of Fossil Fuels
MARKET PUMP PRICE
$4.43
HIDDEN SOCIETAL COSTS
+$10.57 in hidden costs
Estimated True Cost
$15.00
per gallon
Environmental Damage
$4.50
Public Health (Asthma/Heart)
$3.50
Defense & Military Subsidies
$2.57
EV Grid Surplus Capacity Calculator
Sub-Station Capacity Analysis
14.6 MW
Total Number of EVs
2,027
Max Simultaneous Load
Passive Solar Eave Calculator
Solstice Shadow & Floor Penetration Analysis
Sun Penetration (on Floor)
Winter Solstice: --
Equinox: --
Summer Solstice: --
Sill Height: --