yes but what comes out of your socket is aggregated (cost and source)
Remember that many people misunderstand the principle of electricity and how it travels from the generation system to your house and back again. We are taught in schools that electricity is the movement of electrons through a conductive material that is commonly called a wire or cable. Well, this is nonsense and propaganda fed to naive students by academics who think they can hide the truth from the population.
The truth is that the wires are actually very fine hollow tubes. These tubes start at the power generation plant where coal is burned and the smoke is forced into the hollow tubes. The smoke flows through the tubes (wires) and to our houses, and when we connect an appliance to the smoke tubes the smoke flows into the appliance. There are always at least two connections between the appliance and the socket because smoke has to the flow through the appliance to make it operate, and then the used smoke flows back into the socket to be returned to the power station to complete the "circuit" or "loop". Upon return to the power station it is released up the big chimney and into the sky, which we commonly refer to as pollution.
Now we know this is factual because we all have experienced a faulty appliance where the smoke circuit is broken and some of the smoke gets out. The appliance stops working when the smoke circuit is disrupted and the smoke escapes from the appliance.
As electricity consumption in our society is increasing, there is more demand for the smoke through the tubes/wires. So to improve the efficiency of the smoke delivery and return to the power station, the electricity generation companies are installing wind turbines and solar panels. The wind turbines are used as pumps to increase the efficiency of the flow of the smoke through the system. The wind turns the pump and more smoke can be pushed through the tubes. Solar panels are used to heat the smoke to reduce the friction as it flows through the tubes. The idea that power generation companies convince house owners to install the smoke friction reduction panels on their roof, at the home owner's cost, is pure genius on the part of the generation companies. They reap the efficiency benefits without the capital investment.
So, yes, what comes out of your socket is indeed aggregated ... aggregated smoke from the power station, pumped through the tubes by the wind turbines, friction reduced by heating in the residential solar panels, and finally returned to the power station chimney for cooling and release into the atmosphere.
We know this is true just be observing disposable items such as fluorescent tubes (commonly called lights but more factually described as "dark suckers"). Observe an expired fluorescent tube - the ends of the tube are darkened as they trap some of the residual smoke rather than returning it to the system, which also proves they are dark suckers (rather than light generators) as at the end of their useful life consuming darkness the consumed darkness can be observed at the ends of the tube. This inefficiency is why the power companies want us to change over to use LED dark consumption devices as they are more efficient at returning the smoke to the exit tube than the older fluorescent or incandescent dark suckers.