How electricity is sold. A power producer sells in two main ways:

How electricity is sold: a power producer sells part of its power under a long-term power purchase agreement at a set price, and the rest on a power exchange, where buyers and sellers bid for each short period.

Electricity is hard to store. So its price swings far more than the price of most goods. It is low at midday, when solar plants are producing, and high in the evening, when people come home.

Electricity is hard to store, so its price swings: low at midday, when solar plants are producing, and high in the evening, when people come home.

Who needs to know the future. A power plant runs for 25 years or more. Before anyone builds one, they need a view of power prices over that whole time. Several groups depend on such forecasts:

• developers deciding whether to build a plant
• banks and investors deciding whether to pay for it
• utilities and grid operators planning how much power they will need
• regulators setting the rules
• traders buying and selling energy every day

What is sold. Four kinds of products serve them:

This is a specialist field. Several of its leading companies have engineering and research teams in India.

Every company named here has posted software engineering jobs in India. Famous companies that don't actively hire software engineers in India are left out.