1Foundations2 h
What Even Is Energy?
Energy vs power, joules to kilowatt-hours, why your bill counts "units", and where lost energy always goes.
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A free, self-paced course · ~30 hours
Electricity, explained from absolute zero.
Every type of power plant. The grid that ties them together. Storage, money and climate. Built for curious students in India — no prior knowledge needed, advanced depth included when you want it.
The one idea that unlocks everything
Almost every power plant on Earth is just a different way of spinning a magnet.
Coal, gas, nuclear, hydro, wind — under the hood they all spin a turbine wired to a magnet. Solar panels are the one weird exception. Get this, and the whole subject clicks.
- parts
- 5parts
- modules
- 14modules
- of learning
- ~30 hof learning
- forever
- ₹0forever
Don't take our word for it
This is the trick behind almost every power plant ever built. Move the magnet — slowly, then fast — and watch the meter.
Diagram: a bar magnet slides along a rail through a wire coil that is wired to a current meter. The needle deflects only while the magnet is moving, and further the faster it moves.
Induced current:none
The road, in five parts
Designed to be walked in order — but every module says exactly what it builds on, so you can also drop in anywhere.
- Part A
Foundations
5 hThe vocabulary of energy — so everything after this makes sense.
- Part B
How Every Power Plant Works
13 hOne module per technology, from "explain like I'm 10" to real engineering.
- Part C
The Rest of the Menu
2 hBiomass, geothermal, tidal — and hydrogen, the most misunderstood topic in energy.
- Part D
The Grid & Storage
5 hHow the whole system holds together, every second — the part almost nobody teaches.
- Part E
The Big Picture
5 hMoney, climate, and a capstone where you run the grid yourself.
- Assessment
Final Exam
1 hOne hour. One attempt. One certificate.
All 14 modules, then the exam
Work through them in order, or drop in anywhere. When you are ready, sit the final exam for a certificate.
2Foundations3 h
Electricity From Scratch
Voltage, current and resistance via water pipes — and the magic trick behind civilisation: move a magnet, get current.
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3How Every Power Plant Works3 h
Coal & Thermal Plants
The steam cycle behind most of India's electricity — and what cooling-tower "smoke" actually is.
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4How Every Power Plant Works1½ h
Gas, Diesel & Combined Cycle
Jet engines bolted to the ground, the ~60%-efficiency combined-cycle trick, and India's diesel-genset culture.
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5How Every Power Plant Works2 h
Hydroelectric Power
Falling water spins a turbine: head vs flow, Pelton to Kaplan, dams, and the original giant battery.
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6How Every Power Plant Works3 h
Nuclear Power
A chain reaction on a leash boiling water — reactor types, safety told honestly, and India's thorium dream.
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7How Every Power Plant Works2 h
Solar Power
The one plant with no spinning magnet: the photovoltaic effect, capacity factor, and the duck curve.
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8How Every Power Plant Works1½ h
Wind Power
Blades that fly like wings, why power grows with speed CUBED, and the limit no turbine can beat.
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9The Rest of the Menu2 h
Biomass, Geothermal, Tidal & Hydrogen
Sugar mills that power themselves, Earth's inner heat, brutal tidal engineering, and hydrogen: carrier, not source.
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10The Grid & Storage3 h
The Grid: Civilisation's Biggest Machine
One electron's journey to your socket, 50 Hz as a heartbeat, and the 2012 blackout that hit 620 million people.
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11The Grid & Storage2 h
Storage & EVs
Why storing electricity is THE 21st-century grid problem — lithium-ion from zero, pumped hydro, and EV honesty.
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12The Big Picture2 h
Energy Economics & Policy
What a unit really costs to make, why DISCOMs are broke, and how electricity gets traded like stocks.
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13The Big Picture2 h
Climate & the Energy Transition
The greenhouse effect actually explained, honest gCO₂ numbers per source, and what net-zero-2070 really requires.
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14The Big Picture1 h
Capstone: Design Your Own Grid
You get a fictional Indian state, a budget and a demand curve. Keep the lights on 24/7. Good luck.
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15Assessment1 h
Final Exam
Fifty-four questions across everything you have learned — multiple choice, true/false and diagrams to label. Score above 80% for a Certificate of Excellence.
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One course, three depths
Every lesson is readable by a total beginner — and expandable until it satisfies an engineer.
Base
Always visible. Zero assumed knowledge, analogy first, minimal math. A 13-year-old can follow every word.
🔥 Advanced
Collapsed until you want it. The Betz limit, grid inertia, the duck curve's mechanics — school math is enough.
🔥🔥 Deep
Real engineering: derivations, T-s diagrams, neutron multiplication, LCOE with worked numbers. Calculus welcome.