Energy

400000 BC

Controlled Fire Mastered

Early humans harness fire for warmth, cooking, and protection—humanity’s first energy technology.

500 BC

Waterwheels Harness Rivers

Ancient Greek and Roman engineers build waterwheels to grind grain, capturing flowing water as mechanical power.

650

Windmills Capture the Air

Persian engineers build the first windmills to grind grain and pump water in arid regions.

1698

Steam Engine Invented

Thomas Savery patents the first commercial steam engine for pumping water from mines, launching the age of thermal power.

1821

Electric Motor Demonstrated

Michael Faraday demonstrates electromagnetic rotation, the principle behind every electric motor built since.

1859

First Oil Well Drilled

Edwin Drake strikes oil in Titusville, Pennsylvania, launching the petroleum industry that powers the modern world.

1882

First Power Station Opens

Edison’s Pearl Street Station in Manhattan delivers electricity to 85 customers, beginning the age of centralized power.

1935

Hoover Dam Generates Hydropower

The massive dam on the Colorado River demonstrates large-scale hydroelectric generation, powering the American Southwest.

1942

Nuclear Chain Reaction Achieved

Enrico Fermi’s Chicago Pile-1 sustains the first controlled nuclear chain reaction, unlocking atomic energy.

1954

First Practical Solar Cell

Bell Labs engineers create the silicon photovoltaic cell, converting sunlight to electricity at 6 percent efficiency.

1956

First Commercial Nuclear Power Plant

Calder Hall in England begins supplying nuclear-generated electricity to the national grid.

1973

Oil Crisis Shocks the World

OPEC embargo quadruples oil prices, spurring global investment in energy efficiency and alternative sources.

1991

First Offshore Wind Farm

Vindeby wind farm in Denmark installs 11 turbines at sea, pioneering offshore wind energy generation.

2008

Now

Tesla Roadster Proves Electric Vehicles

The first highway-capable mass-produced EV demonstrates that electric cars can match gasoline performance.

2015

Now

Paris Climate Agreement Signed

196 nations commit to limiting global warming, accelerating the transition to renewable energy worldwide.

2020

Now

Solar Becomes Cheapest Energy

Solar photovoltaic becomes the cheapest source of electricity in history in most of the world.

2022

Now

Fusion Ignition Achieved

Lawrence Livermore’s National Ignition Facility achieves fusion energy gain for the first time in history.

2025

Now

Grid-Scale Battery Storage Deploys

Massive lithium-ion and iron-air battery installations store renewable energy for reliable 24/7 grid supply.

2028

Predicted

Solid-State Batteries Commercialize

Solid-state batteries with double the energy density and faster charging enter mass EV production.

2032

Predicted

First Commercial Fusion Plant

A net-positive fusion reactor connects to the grid, providing virtually unlimited clean baseload power.

2037

Predicted

Green Hydrogen Economy Scales

Cheap renewable-powered electrolysis makes green hydrogen competitive for heavy industry, shipping, and aviation fuel.

2042

Predicted

Wireless Power Transmission

Microwave and laser-based systems beam solar energy from orbit to ground receivers, supplementing terrestrial generation.

2055

Predicted

Energy Abundance Achieved

Fusion, space solar, and advanced storage provide cheap, clean energy globally, ending energy poverty worldwide.