# "Free energy" from renewable sources.

*It is necessary in the current environment*

>> **Compliance with nature environmental laws - self-defense - self-sufficiency - independence - biological shelter. Self '.'**

Self-defense, self-sufficiency, self... Independence, freedom and ecological shelter; as the essence of SAMoDOM.

## Calculation of kinetic energy of the wind upon our parcel

The formula for full wind kinetic power:

**W=0.5*Ro*A*(V**3)**,

where:

W is full kinetic power of wind flow [Watt]

Ro is air density (1.225 kilograms per cubic metre)

A is area [square metre]

V is wind speed on the area A [metre per second]

See Wikipedia

Wind power

Wind turbine design

Maximal available area upon parcel is 46 metres length x 8 metres height (line east-west), minimal area is 12 metres length x 8 metres height (line south-north) - 96 sqm. For minimal air area, wind power is:

**wind speed** m/s | **kinetic wind power** KWatt |

3 | 1.59 |

4 | 3.76 |

5 | 7.35 |

6 | 12.70 |

7 | 20.17 |

8 | 30.11 |

9 | 42.87 |

10 | 58.80 |

11 | 78.26 |

12 | 101.61 |

13 | 129.18 |

14 | 161.35 |

15 | 198.45 |

16 | 240.84 |

17 | 288.88 |

18 | 342.92 |

19 | 403.31 |

20 | 470.40 |

Average wind speed for the parcel is (approximately) 4 metre per second; average wind power is 3.76 kilowatts.

Energy per year is 33000 kilowatt-hours (KWh).

## Ground head energy under our parcel

(Geothermal energy)

Ground heat capacity: 0.8 KJ/(Kg*K)

Ground mass for 10 m depth: 12000 tonnes

Temperature at the depth of ten metres: 10 degrees C

If we will cool the ground to 0 degree C or will heat it to 20 degrees C, geothermal energy will be 96000 Mega Joules.

For half a year (opposite phase of ground-air temperature) energy per day is:

527 MJ per day or

22 MJ per hour or

heat power 6.1 KW

## Air heat energy under the parcel

Heat capacity of air: 1 KJ/(Kg*K)

Density of air is about 1.2 kg/m3>

Air mass upon the parcel for altitude 10 m: 8160 kg

Heat energy (heating/cooling air mass to 10 degrees C): 81.6 MJ

For wind 4 metre per second: every 6.5 seconds - "new air mass" - heat power is 12 MegaWatts.

## Solar power

Parcel area is 680 sqm.

Year average solar power (clear sky, during day) is approximately 800 Watts/m2 (for land area). If during 1/3 of days are clouds or fog (days without direct sunlight): solar energy (year average and day average) is 180 KWatt.

## Attention

All data are approximate!

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