The consensus of recent major global studies of generation costs is that wind and solar power are the lowest-cost sources of electricity available today.

Electricity generation sources

1. Hydro. Hydropower uses the power of flowing water to create electricity.
2. Nuclear. Nuclear power comes from a nuclear fission process that generates heat, which is used to generate the steam that rotates the turbines to generate electricity.
3. Coal.
4. Natural Gas.
5. Biomass.
6. Wind.
7. Oil.
8. Solar.

1. Residential Solar Panels. Every ray of sunshine that lands on your roof is free electricity for the taking. When your home is consuming more energy than your solar panels are generating, the solar energy simply offsets the amount of electricity you need to purchase from the grid.

Coal, natural gas, and oil plants can produce energy and they do produce over 65% of electrical energy currently. They do this by burning the fuel and then using the off-gas temperature to produce steam which moves a steam turbine to produce electricity.

Second: A high efficiency, natural gas-fired combined-cycle power plant might consume about 7000 Btus of gas to produce one kilowatt-hour of electricity. That would be about 7 cubic feet of natural gas. It would therefoe take about 7000 cubic feet of gas to produce one megawatt-hour.

A kWh equals the amount of energy you would use by keeping a 1,000 watt appliance running for one hour. In metric, 1,000 = kilo, so 1,000 watts equals a kilowatt. For instance, if you turned on a 100 watt bulb, it would take 10 hours to use one kilowatt-hour of energy.

Natural Gas & Oil Natural Gas: It takes 0.01003 Mcf (1,000 cubic feet) to make 1 kWh. This includes power plant inefficiency.

Metric gas meters

1. Take a meter reading.
2. Subtract the new meter reading from the previous reading to work out the volume of gas used.
3. Multiply by the volume correction factor (1.02264).
4. Multiply by calorific value (40.0).
5. Divide by kWh conversion factor (3.6).

Both gas and electricity consumption is measured in kWh. The unit rate you pay will vary depending upon the energy price plan you’re on, and even the region you live in, but the average cost of electricity per kWh is 14.37p, and the average gas cost per kWh is 3.80p.

A kilowatt-hour (or kWh) is the unit of energy utility companies use to measure how much gas and electricity you’re using. Put simply, it refers to the use of power over a period of time – for example a 1 kW drill used for an hour will use 1 kWh.

To put it in perspective, an average home in California consumes about 20 kWh of electrical energy per day, so this 100-kWh fully-charged Tesla battery would cover this home’s needs for about 5 days. Now that’s great if you like to go off-grid.

As an example, a 100-watt light bulb operating for ten hours would use one kilowatt-hour. Below are some examples of electrical appliances found in most homes….What Uses Watts in Your Home.

One of the main reasons your electric bill may be high is that you leave your appliances or electronics plugged in whether you’re using them or not. While that might not have been such a problem years ago, most modern appliances and gadgets draw electricity when turned off.