Green EnergySolar Panels, Solar Power, Wind Turbines, Get Off Grid, Build Solar Panels, Build Wind Turbine

plz ……………….:)? helpppppppp

An energy efficient home uses 3.2 kWh of electricity per day. To use energy wind they need to be able to store energy which is then used to drive an electric generator. They are planning to use the water pumped to a tank high energy storage. A) How much water if you have stored for 2 days of supply, if the water is stored in the height of 15 m above the turbine, in order to store the equivalent of 2 days of electricity in the form of gravitational potential energy?

First, ensure that they recognize that it is a unit kWh of energy, W stands for watt, and 1 W is 1 Joule / sec, so multiplying Watts (energy / sec) times per unit time (seconds) energizes (/ S) x (sec) = 6.2 kWh convert energy now in the MKS unit of energy, joules: thus in two days, the house uses 6.2 kWh of energy, equivalent to 6.2 kWh = 6200 W h (k = kilo = 1000) 6200 W = 6200 W h (3600 sec / h) (h) = 2.23×10 ^ 7 J grav potential energy of a mass m is: PE = mgh where m is mass, g is the acceleration due to grav (9.8 m / s / s) and H is the height above the ground, here, the EP is: PE = 9.8 m / s / s (15 m) h = 147 m / and this amount of PE should equal 2.23×10 ^ 7 J clearing: m = 2.23×10 ^ 7J/1.47×10 ^ 2m ^ 2 / s ^ 2 = 1.52×10 ^ 7 kg of water and their answer is 1.52×10 ^ 7 kg of water

Vertical Axis Wind Turbines – Kedco

Solar Cell Phone Laptop Netbook Adapter Charger $169.20 ?Highly versatile with as many as 4 different connectors and an 8-in-one connector belt, compatible with most cell phones, notebook/netbooks, PSPs, MP3/MP4s, PDAs, digital cameras, electronic dictionaries, IPAQs! ?Specification: Input: AC100V-240V Output: 4.2V 8.4V 12.4V 16.8V 9V 500-2000mA Li-polymer Battery: 11200 mAh 14.8V ?Compatibility list: Connector/Tip 1: 2 mm round pin, suitable …

Solar Mini USB Nokia Sony Ericsson Charger Pink $30.40 ·Highly versatile with as many as 4 different connectors/tips, compatible with most cell phones, PSPs, MP3/MP4s, PDAs, digital cameras, electronic dictionaries, IPAQs! ·Compatibility list: Connector/Tip 1: 2 mm round pin, suitable for Nokia phones Connector/Tip 2: 3.5 mm round pin, suitable for NK02 Nokia phones Connector/Tip 3: Wide connector, suitable for Sony Ericsson phones Co…

Motorola Nokia Sony Ericsson Solar Charger Gold $30.40 ·Highly versatile with as many as 4 different connectors/tips, compatible with most cell phones, PSPs, MP3/MP4s, PDAs, digital cameras, electronic dictionaries, IPAQs! ·Specification: Input: AC100V-240V Output: 5.5V 800mA Li-polymer Battery: 2600 mAh ·Compatibility list: Connector/Tip 1: 2 mm round pin, suitable for Nokia phones Connector/Tip 2: 3.5 mm round pin, suitable for NK02 No…