By "an Alternative to Electricity," I take it you mean MAINS SUPPLIED Electricity.
There are PLENTY of Alternatives.
1. There is a thermionic generator that converts heat into electricity quietly.
A model I saw advertized delivered 700 Watts, powered by Natural Gas, Propane or Butane.
2. Generators are really not all that expensive, depending on how much electricity you really need.
Low wattage LED lights really make them go further.
3. Solar cells are really overrated- you will pay through the nose for so little a return.
You need a large area to get anything useful If you live in an overcast area, you will be so screwed.
4. If you are fortunate to live by a stream or a river, you can get a water-wheel.
5. If you are fortunate to live in a windy area, you can get a windmill.
6. In any event, you will have to invest in "Deep-Cycle" Batteries (which can be run right down, and charged back up, many times, without damaging their plates, as will happen with ordinary car batteries.) Whatever option you use, you can store power for emergency use, more or less indefinitely.
These options are reasonable and available in any civilized society.
If you can just get in touch with your inner Mad Scientist (everybody has a mad Scientist in them- its just that they don't always come to the Phone!) there are a few scary options, which Scientists who want to keep their jobs swear up and down do not work, but some crackpots swear do.
7. Water Fuel: Anybody who knows anything about Chemistry/Physics knows that, whereas there is nothing magical about electrolyzing water, and using the liberated Hydrogen and Oxygen for clean fuel, you will use up three times as much energy as you get out of your OxyHydrogen by burning it. This does not matter if you get your energy from Hydrogen, and it is inconvenient to use the electricity directly. But it is wasteful.
A man called Yul Brown discovered a form of OxyHydrogen that burns hotter than Hydrogen burned in Oxygen has any right to.
Another man, called Stanley Meyer found a way to use this gas to replace gasoline.
His technique is based upon using timed pulses of electricity instead of Direct Current,
as we are taught in all of the textbooks.
Both Yul Brown and Stanley Meyer died (separately) in 1998.
Stanley Meyer's Water Fracturing process is being commercially exploited to this current date.
8. Magnet Power: There is nothing arcane about this. Through some clever engineering, ordinary magnets are arranged such that their mutual repulsions create motive force. The best way to do this is to use magnets which are curved (banana-shape), but those are not "ordinary."
The way to get around this is, instead of having single, perfectly shaped magnets, small, ordinary bar magnets could be placed end-to-end, just like we were all taught in Primary School Science class, North Pole-to-South Pole, with a little gap in between, and the assembly bent in any shape one wants.
It is said that this use- or abuse- of Magnets destroys their magnetism over time, and that no such device has maintained its power for a full year. replacement, however, should be simple and straightforward.
9. Magnetic Energy: A former Lieutenant-Colonel in the USAF, Thomas Bearden devised a MOTIONLESS ELECTROMAGNETIC GENERATOR, which utilizes a substance that previously existed only in Quantum Theory, called Ferrite Nanocrystals.
A magnet is situated in the core of a transformer made of the material. A SINGLE pulse initiated in the primary coil reverberates perpetually, creating a constant flow of current from the secondary transformer coil. Completely silently. The inventor was going to launch an electric car powered by his M.E.G. in 1995, then cancelled the plan.
In a radio interview, he remarked: "You can build such a car easily, but you won't be around to drive it!"
10. Fuelless Motors: It is a Schoolchild's Dream to hook up an electric motor to an electric dynamo, and let the motor power the dynamo, with electricity from the dynamo.
Someone figured that the BACK-EMF from a collapsing magnetic field could as well be harvested, and fed back into the system, causing "perpetual motion."
The secret involved using a rectifier bridge and capacitors to catch the Back Electromotive Force, created when the brushes jump the commutators, normally causing wasteful sparking. The technique is more efficient the higher the voltage that can be used. Which will also necessitate special insulation to prevent short-circuiting. The capacitor will form a new hazard by themselves, a\s they retain charge indefinitely, while looking totally harmless.
If the the Velocity Ratio/Mechanical Advantage between Dynamo and Motor can be adjusted appropriately, perpetual motion will be achieved.
Somewhere in all these alternatives should be one that suits you.