Chapter 8: Who Pays, Who Decides — and What Will You Build?

The Big Idea

Technology choices are also money and justice choices. Levelised cost of energy (LCOE) spreads a plant’s lifetime costs over the units it will generate, so different technologies can be compared fairly. But LCOE does not capture everything: the value of power when it is needed, the cost of pollution, or what happens to the people whose jobs depend on coal. Good energy policy weighs all of these.

Did You Know?

Around half a million people work directly in India’s coal sector, and whole districts depend on coal for jobs and public revenue. A just transition means planning new industries, retraining and income support before mines close, not after.

Story Time — Sumit’s Two Futures

Sumit, age 16 · Korba, Chhattisgarh

Sumit’s father has worked in the coalfields of Korba for twenty-two years. Coal paid for Sumit’s school fees, his sister’s college, and the roof over their heads.

In school, Sumit learned about emissions and the energy transition. At home, he heard a different worry: “If the mines close, what happens to us?” The town’s shops, buses and hospital all depend on mining wages.

His economics teacher gave the class a real task: design a transition plan for Korba. The students found that a district cannot simply be told to stop. They proposed solar manufacturing and maintenance jobs on reclaimed mine land, retraining for electricians and welders, pumped storage in old mine pits, and using the existing grid connections and railway lines that coal plants already have.

Sumit presented the plan with one sentence that silenced the room: “My father is not the problem. His job is part of the solution, if somebody plans for it.”

He now wants to study energy policy. “Someone has to make sure the transition arrives in Korba as an opportunity,” he says, “and not as a notice on a gate.”

Story Time — Alisha Builds a Business Case

Alisha, age 16 · Mumbai, Maharashtra

Alisha interned for two weeks at a small clean-energy company in Mumbai that installs rooftop solar for housing societies. She expected engineering. She got spreadsheets.

“The panels are the easy part,” her mentor said. “The hard part is money. A society does not have ₹30 lakh spare. So we pay for the system and sell them the electricity at a lower rate than the grid for fifteen years.”

Alisha learned to read a project’s numbers: capital cost, generation, tariff, maintenance, and the payback period. She also learned about risk. “What if the society stops paying? What if the roof is sold? Banks ask these questions before lending.”

She sat in on a call about green bonds — money raised specifically for projects that cut emissions — and realised that finance is as much a part of the energy transition as physics.

On her last day, her mentor listed the company’s twelve employees: three engineers, two electricians, an accountant, two sales staff, a data analyst, a lawyer and two technicians. “Every one of them works in clean energy,” she said. Alisha went home realising that her love of both maths and argument had a career waiting for it.

🔢 Numbers Corner

Simple LCOE ≈ (capital cost ÷ lifetime units) + operating cost per unit, where lifetime units = capacity (kW) × 8,760 × capacity factor × years. Halving the capacity factor nearly doubles the cost per unit.

Myth or Fact?

Myth: The cheapest source of electricity is always the best choice for the grid.

Fact: Cost per unit is only one dimension. A grid also needs power at the right time and place, reliability, and a fair deal for the communities and workers affected.

🔬 Try it in the Green Energy Lab

Experiment with these ideas in Lab 7: Clean-Energy Career Explorer.

Brain Buster

Find out who supplies electricity in your area, and what you pay per unit. Where does that money go — generation, wires or losses?