Geothermal
Geothermal energy has become so advanced and effecient that theres the technology to have it installed in your home. it's a zero emmissions heating system made to replace your gaspowered temperature system. Companies simply drill 10 feet underground, and run piping from the ground, into your home. The concept is, at depths that low, the ground's temperature is consistent, and can be harnessed to reguate your home temperature year round.
With latest advancements and with changes in the economy, this heating system is more affordable to homeowners at averaged around $30,000 overall. However, for resedential use, geothermal energy is massivly used only for temperature regulations, rather than doubling that for also energy conversion.
Hydroelectric
Hydroelectricity is a much more established energy source, and has had many years to develope and advance. Many resedential hydro electric contraptions are categorized as Microhydropower. Many of these are configured for running river-side use. ususally concists of a turbine, pump, or wheel, that feeds into a regulated generator or alternator. Many turbines are bought commercially and the standard kenetic generator to use for residential use. There are three types of turbines:
Pelton Wheel
This turbine uses the concept of jet force to create energy. Water is funneled into a pressurized pipeline with a narrow nozzle at one end. The water sprays out of the nozzle in a jet, striking the double-cupped buckets attached to the end pf the wheel. The impact of the jet spray on the curved buckets creates a force that rotates the wheel at high efficiency rates of 70–90%.
Turgo Impulse wheel
An upgraded version of the Pelton, this uses the same jet spray concept. However the Turgo jet, which is half the size of the Pelton, is angled so that the spray hits three buckets at once. As a result, the Turgo wheel moves twice as fast. It's also less bulky, needs little to no gears, and has a good reputation for trouble-free operations.
Jack Rabbit turbine
A drop-in-the-creek turbine that's capable of generating power from a stream with as little as 13 inches of water and no head. Output from the Jack Rabbit is a maximum of 100 Watts, so daily output averages 1.5–2.4 kilowatt-hours, depending on your site.
Radioactive
While there's not yet residential capabilities, there have still been exciting innovations. The latest trend in nuclear energy is the small modular reactor (SMR), which generates a fraction of the energy of traditional reactors, but at a fraction of the cost. Existing nuclear reactors generate 500 megawatts to 1 gigawatt of electricity. SMRs generate less than 300 MW. A benefit of smaller reactors is that they’re more flexible than their predecessors.
A single reactor could suit projects with lower energy needs, and multiple reactors can be added onto projects with higher energy needs, such as hitching additional cars to a freight train or connecting more bulbs to a string of holiday lights. NuScale, based in Oregon, arguably has made the most progress with SMR technology. Its reactors have a capacity of 60 MW, enough to power about 50,000 homes. The company recently received preliminary design approval from the U.S. Nuclear Regulatory Commission (NRC), making its design the closest to getting a green light of any small-scale nuclear reactor.