Exports are not included in the chart above. Nuclear power was the top source of electricity generated in New Jersey until recently, when it was edged out by natural gas. This year, New Jersey increased its renewable energy standard to require that 21 percent of the electricity sold in the state come from renewable sources by , with that requirement increasing to 35 percent by and to 50 percent by In an effort to further reduce carbon emissions, the state also passed legislation to prop up its nuclear plants, which currently provide the largest portion of zero-emissions energy.
The state gets some of the power it consumes through the Mid-Atlantic regional grid. Natural gas, wind and solar accounted for a little less than half of the electricity produced in New Mexico last year, up from just 15 percent two decades earlier.
The state will require utilities to get 20 percent of the electricity they sell from renewable energy by New Mexico is also looking to increase generation from zero-carbon sources because it sends a significant amount power to California, a state with some of the strictest renewable energy policies in the country. Natural gas and nuclear power have supplied the majority of electricity generated in New York for nearly two decades and their share has expanded as coal use in the state has declined.
The state will require utilities to get 50 percent of the power they sell to consumers from renewable sources by , an ambitious goal, and aims to substantially reduce greenhouse gas emissions.
New York tends to consume more energy than it creates and imports some electricity from neighboring states and Canada. Electricity imports are not included in the chart above.
Natural gas generation increased after the national fracking boom of the late s and became the second-largest source of electricity generation in the state in North Carolina is currently the only Southern state with significant solar generation.
North Carolina has also set a requirement that utilities get As in many Great Plains states, wind energy has taken off in North Dakota over the past decade. Last year, wind powered more than a quarter of the electricity produced in the state, up from less than 2 percent a decade earlier. In , the North Dakota Legislature set a voluntary goal for utilities: to get 10 percent of the electricity sold to consumers from renewable or recycled energy by That goal was met and even surpassed, according to utility analysts.
North Dakota produces more electricity than is consumed in the state and about half is sent to its neighbors. Exports are not charted above. The state wants to expand that, however.
It will require utilities to get at least But in , wind surpassed coal as the second-largest source of electricity produced in the state. Last year, the state was second only to Texas in total electricity generation from wind. In , Oklahoma requ ired that 15 percent of its generation capacity comes from renewable sources by It also designated natural gas as its preferred choice for new fossil fuel projects.
The state had exceeded the renewable target by Most of the electricity produced in Oregon in any given year comes from hydropower but the share produced from water fluctuates with precipitation. Power from natural gas typically increases during drought years, and decreases in years with ample hydroelectricity.
Over the past decade, wind power has grown to become the third-largest source of electricity generated in the state. In an effort to encourage more non-hydroelectric renewable energy, Oregon will require its largest utilities to get 50 percent of the electricity they sell from new renewable energy sources by The program covers projects introduced or upgraded since , a cutoff that would exclude older hydropower. Coal powered the bulk of electricity produced in Pennsylvania through , when it fell below nuclear for the first time.
Last year, nuclear power was the top source of electricity generated in Pennsylvania. Pro-nuclear groups, saying the loss of this emissions-free electricity is bad news for climate change, have sought state subsidies for nuclear energy. Pennsylvania will require that 18 percent of the electricity that utilities sell to consumers come from renewable and alternative energy by , with at least 0.
Last year, renewable energy made up about 5 percent of in-state generation. The state is a big supplier of energy to the Mid-Atlantic region.
Natural gas dominates electricity generation in Rhode Island, but wind and solar energy, while still small, have grown quickly in recent years. Rhode Island will require electricity providers to get nearly two-fifths of the power they sell to consumers from renewable sources by The state consumes more electricity than it generates and gets the rest from neighboring states.
A majority of the electricity generated in South Carolina comes from nuclear power, with coal and natural gas taking second and third place, respectively. South Carolina produces more power than it consumes and sends the surplus to neighboring states. Hydropower has supplied the majority of the electricity created in South Dakota for most of the past two decades, but coal generation surpassed hydroelectricity during three years: , and Last year, wind was the second-largest source of electricity produced in South Dakota, accounting for nearly a third of generation in the state.
Coal supplied most of the electricity produced in Tennessee between and , but its generation share started to decline about a decade ago as natural gas power gained share.
Last year, coal-powered generation dipped below nuclear for the first time in nearly two decades. Tennessee consumes more power than it produces and makes up the shortfall with electricity from nearby states. One of the most precise techniques is the injection of liquid water into the earth's interior area to raise its temperature: the water is converted into steam and returns to the power plant full of energy and ready to be transformed into electricity. The application of this energy depends on the characteristics of each source:.
Home Discover energy Energy and more How electricity is generated. How electricity is generated Would you know how to explain quickly and easily how electricity is produced? For that, let's start at the beginning: What is electricity? Where does electricity come from? The step-by-step process is as follows: Power generation: electricity is created in plants capable of obtaining electricity from primary energies.
The so-called renewable primary energies are wind, solar radiation, tides and non-renewables are coal, natural gas and oil. Companies build power generation facilities and own in whole or in part so-called power stations and infrastructure. They sell the energy generated to the companies that market them suppliers. Energy transmission: once the energy has been obtained and after being converted into electricity, it is transmitted by overhead power lines suspended by towers or underground, from the power plants to the substations.
There are other elements there, called transformers, which are used to ensure an adequate electrical voltage. If they are not large in size, you can exceptionally find them in the city itself, inside a building. Power distribution: electricity is sent to households in the nearest area from the substations.
As a receiver of energy and a consumer, you cannot choose your distributor, as one or another is assigned to you depending on the area where you live. The company you get will be responsible for ensuring that the electricity reaches your home correctly and will take care of any faults.
It is also the owner of your electricity meter , and sends its readings to your supplier which is the one that charges you. Energy trading: your supplier is the one you can always choose and will always be the one that sends you the bills, since it is the one who buys the energy from the generation companies and sells it to you. The suppliers will offer you different tariffs and deals, although in Spain there is a free market where you pay according to the conditions of your contract, as in any other service tariff mobile, Wi-Fi, etc.
What types of power plant are there? It depends entirely on the type of power plant we are talking about, as it depends on how we obtain the energy, we will be dealing with one or the other: Conventional cycle thermoelectric plants coal, diesel and natural gas : coal, natural gas or diesel are burned in these plants.
When burned, they raise the temperature of a water tank, transforming it into steam, which causes a turbine to move. It is this movement, that of the turbine, that generates electricity by means of an alternator that transforms mechanical energy into electricity.
That is, movement is transformed into electricity. Finally, the steam goes to a condenser to become water again and start the cycle again. Combined cycle thermoelectric power plants coal, diesel and natural gas : these operate in a similar way to conventional cycle power plants. Like these, they have a turbine that moves with the steam of the heated water. But they also have a different turbine that moves with air taken from the atmosphere and heated by fossil fuels.
Their great advantages over conventional cycle power plants are that they are more efficient, more flexible they can work at full load or "at half gas" depending on the needs and more ecological lower emissions to the atmosphere.
Nuclear power plants: in the same way as in the previous examples, the heat released by nuclear fission in a reactor heats large amounts of water at high pressure. The released steam produces electricity by passing through a turbine connected to a generator. It is measured as the grams of CO2 produced per kilowatt-hour kWh.
Countries which get a large share of their electricity from low-carbon sources renewables and nuclear will have a lower carbon intensity. This interactive map shows the carbon intensity of electricity across Europe. Ember — our key electricity data source — currently only provides carbon intensity data for the EU countries, plus the United Kingdom.
Fossil fuels are the sum of coal, oil and gas. Combined, they are the largest source of global emissions of carbon dioxide CO 2. We therefore need to transition away from them.
This interactive map shows the share of electricity that comes from fossil fuels coal, oil and gas summed together across the world. Oil accounts for only a small share of electricity production — most come from coal and gas. The share from coal and gas individually can be found in the sections below. Coal is currently the largest source of electricity globally. For many countries remains the dominant source. But, we also see that others have seen a massive shift away from coal in recent years — the UK is one such example.
Its contribution is growing quickly in many countries as they substitute it for coal in the electricity mix. From a climate perspective, this transition is positive since gas typically emits less CO 2 per unit of energy. But, we still ultimately want to shift away from gas towards low-carbon sources such as renewables and nuclear.
Nuclear has played a key role in low-carbon electricity production for decades. In some countries it is one of — if not, the single — largest source of electricity.
By clicking on a given country you can see how this share has changed over time. Japan is an obvious example of this. This interactive map shows the share of electricity that comes from renewables the sum of all renewable energy technologies across the world. The share of electricity we get from individual renewable technologies — solar, or wind, for example — are given in the sections below.
Hydropower makes a large contribution to low-carbon electricity across the world. This interactive map shows the share of electricity that comes from solar power across the world. But wind generation has been growing rapidly in many countries across the world in recent years.
Explore all the metrics — energy production, electricity consumption, and breakdown of fossil fuels, renewable and nuclear energy. Download our complete dataset of energy metrics on GitHub.
How much of our energy comes from fossil fuels, renewables and nuclear energy? See the breakdown of the energy mix. Electricity is only one part of total energy — decarbonizing electricity is only one step towards a low-carbon energy system. Such progress often makes the headlines. Where does our electricity come from? In the interactive charts shown here we see the breakdown of the electricity mix by source.
How you can interact with these charts On these charts you see the button Change Country in the bottom left corner — with this option you can switch the chart to any other country in the world. Home Our work Generation Electricity generation Electricity generation In the UK, our electricity is generated in a number of different ways.
Renewable energy Renewable technologies use natural energy to make electricity. Imports The UK electricity network is connected to systems in France, the Netherlands and Ireland through cables called interconnectors. Further information To find out more about electricity generation, read the Digest of UK Energy statistics.
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