Nowagreen: Energy Conservation for mitigation of Global Warming
online energy simulation programs, calculators and converters
Hydroelectric Turbine Online Energy Simulation and Optimization
* Input: Hydrology - Renewable Energy (RE)
Head [m]
month average water flow [m3/s] (for each month)
* Input: Equipment
turbine power [MW]
maximum turbine overload [0%-10%]
generator efficiency [%], default = 97%
generator Power Factor [%], default = 90%
auxiliary and in-house electricity consumption, default = 2.5%
non-operating hours [hr/y], default = 720 hr/y
Transmission and Line Losses (T&L) [%], default = 2%
* Input: Economic Parameters
investment in the hydro project (I) [$]
O&M [% of Investment], default = 2%
Rate of Interest (ROI) [%/year], default = 6%
life expectancy of the project [years], default = 30 years
electricity export tariff [cent/kWh], default = 5.5 US cent/kWh
* Output for each month, year minimum, average, maximum
Renewable Energy (RE) [MW]
Turbine Efficiency
Turbine effective power [MWh/hr]
Net Export of Electricity [MWh/hr]
* Output: Annual Hydro Energy Generation
Renewable Energy per year [MWh/year]
Turbine Energy [MWh/year]
Net Export [MWh/year]
* Output: Equipment
turbine power to max RE ratio [%]
Plant Load Factor (PLF) [%]
* Output: Economic Parameters
yearly cost of Investment (Iy) [$/y]
critical tariff [cent/kWh]
recommended tariff [cent/kWh]
max no loss Investment [$]
income from Renewable Energy [$/year]
yearly net income (NIny) [$/y]
NIny-Iy [$/y]
Capital Recovery Factor (CRF)
Present Value of RE (PVRE) [$]
Present Value of the project (PV) [$]
Net Present Value of the project (NPV) [$]
PV/I [%]
profit (PV/I-1) [%]
High Voltage Electric Lines Electro-Magnetic Field Radiation online calculator
* electric line kiloVolts
* distance from electric line:
meters [m]
yards [y]
feet [ft]
* average hours a day of exposure to the line radiation, preset: 15 hr/d
* radiation limit 24 [mGhr/day]
* calculations results:
EMF - average [miliGauss]
EMF - peak [miliGauss]
EMF daily radiation [mGhr/day]
average day radiation to limit ratio
peak day (extreme weather) radiation to limit ratio
Heat Index and Overcooling Heat Index
* Input:
Relative Humidity (RH) %:
air temperature in °C or °F
* Output:
Heat Index in °C and °F
if relevant:
Overcooling extended time [%]
energy waste [%]
Overcooling Heat Index (OCHI) in °C and °F
Building Energy Simulation and Optimization - BESOO
* Input:
orientation of building walls
Cool On - air conditioning operating temperature °C:
infiltration [changes per hour]
ventilation parameters
building details
details of outside wall layers [meter]
optional 10min results, if yes, the simulation may take up to 120 seconds
default values for all input fields
* Output:
Cooling period, hours, energy, condense, power
Heat Index average, maximum, minimum
Heat Index not in cooling hours
ventilation total time
comfort total hours
Economic Evaluation of Energy Conservation Projects
* Input Energy Consumption:
electricity consumption
electricity tariff [cent/kWh]
fuel and gas consumption [$/y]
* Input Energy Saving:
electricity saving
fuel and gas saving
total saving [$/year], [%]
* Input Economic Parameters:
Investment in energy conservation project (I) [$]
life expectancy of the energy conservation project [years]
* Output:
total energy consumption [$/y]
saving of energy [kWh/y], [$/y], [%]
saving of peak demand of electricity [kW]
Capital Recovery Factor (CRF)
Present Value of yearly savings (PV) [$]
Net Present Value of yearly savings (NPV) [$]
PV/I [%]
Profit (PV/I-1) [%]
Max no loss Investment [$]
* final result of the techno-economic analysis
* preset values for easy understanding and demonstration
* change of any value automatically recalculates all outputs
selection of room air conditioner
* region:
preset of many locations all over the world, or
user defined input of the hottest month
average temperature [C]
* building details:
floor (middle, lowest, highest)
room floor area [m2], [SqFt]
* Coefficient of Performance - COP for cooling, default = 3.8
* working hours of air conditioner [hr/y],
preset defaults for each region
* electricity tariffs, cent/kWh, including VAT,
default = 10.0 c/kWh
* Output:
cooling capacity [W], [BTU/hr]
electric power [W]
compressor size [HP]
electricity consumption [kWh/y], [$/y]
justified additional investment in 0.1 better COP [$]
Economic Evaluation of Energy Conservation Projects
Capital Recovery Factor
* Input:
Rate of Interest (ROI) [%/year]
life expectancy of the energy conservation project [years]
Investment in energy conservation project (I) [$]
Energy Saving [$/year]
* Output:
Capital Recovery Factor (CRF)
Present Value of yearly savings (PV) [$]
Net Present Value of yearly savings (NPV) [$]
PV/I [%]
Profit (PV/I-1) [%]
Max no loss Investment [$]
* preset values for easy understanding and demonstration
* change of any value automatically recalculates all outputs
Investment: Loan and Mortgage online calculator
* Input:
years
rate of interest [%/y]
loan amount
* Output:
monthly payments
yearly payments
total payments
money loss
money loss, %
* 8 columns of sets of data:
yearly payments delta to left column
money loss delta to left column
* change of monthly payments changes loan amount
* change of any value automatically recalculates all outputs
* preset values for demonstration
* link to updated rates of interest (Israel)
Global Warming Baselines Converter
* Input:
Baseline 1 (source) = baseline of the source data, from year - to year
Baseline 2 (target) = baseline of the convertet data, from year - to year
* Output:
Conversion Factors [°C] for:
Land+Ocean
Land only
Ocean only
to receive the values of the converted data, the Conversion Factor should be added to the source data
Global Warming above the 1850-1900 baseline, °C
* Input:
select year to show data of the global warming
* Output:
Global Warming above the 1850-1900 baseline, °C:
Land+Ocean
Land only
Ocean only
Celsius / Fahrenheit online converter
* Celsius to Fahrenheit
* Fahrenheit to Celsius
* 7 columsn of sets of data (preset)
* instant calculations with any change
feet+inch to centimeters online converter
* feet - decimal (like 11.25)
* feet = integer + inch decimal
* mm
* cm
* 3 columns of sets of data (preset)
* instant calculations with any change
miles to kilometers online converter
* mile
* Nautical mile
* km
* 5 columns of sets of data (preset)
* instant calculations with any change
Miles per US Gallon to Liter per 100km online converter
* Liter/100km
* Miles/Gallon
* 2 columns of sets of data (preset)
* instant calculations with any change
pound+ounce to gram online converter
* pound - decimal (like 11.5)
* pound integer + oz decimal
* gram
* kg
* 3 columns of sets of data (preset)
* instant calculations with any change
US Gallon, Dry Gallon, Quarts, Pints, Ounces, cubic inch to Liters online converter
* US liquid Volume/Capacity units
US liquid gallon
US liquid quart
US liquid pint
US fluid ounce
cubic inch
* US dry Volume/Capacity units
US bushel
US dry gallon
* Metric units
Liter
milliLiter = cm3
* 3 columns of sets of data (preset)
* instant calculations with any change
°C/°F, kg/lb, km/mile, Liter/gal, (Liter/100km)/(Miles/Gallon)
* Celsius / Fahrenheit:
Celsius to Fahrenheit
Fahrenheit to Celsius
6 columsn of sets of data (preset)
* gram / ounce:
gram to ounce
ounce to gram
2 columsn of sets of data (preset)
* kg / pound:
kg to pound
pound to kg
3 columsn of sets of data (preset)
* Liter / US gallon:
Liter US gallon
US gallon to Liter
3 columsn of sets of data (preset)
* km / US mile:
km to US mile
US mile to km
4 columsn of sets of data (preset)
* (Liter/100km) / (Miles/Gallon):
Liter/100km to Miles/Gallon
Miles/Gallon to Liter/100km
2 columsn of sets of data (preset)
* instant calculations with any change
online countdown and stopwatch
* set: hours, minutes, seconds
* display:
text to remind you: (like:switch off water heating)
start time
current time
end time
elapsed time from start = stopwatch
date, day of the week
* preset: 30min
online energy simulation programs, calculators and converters
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