Electric car maker Tesla posts first profit

Tesla Motors said Wednesday it posted its first-ever quarterly profit as the electric carmaker beat its own forecasts and surprised market analysts.

Tesla sets March 14 'Model Y' unveiling

Tesla is planning to unveil a new electric "crossover" vehicle March 14 which is slightly bigger and more expensive than its most affordable model, according to chief executive Elon Musk.

Reducing cash bite of wind power

The State of Illinois is facing an important renewable energy deadline in 2025, and Northwestern University's Harold H. Kung has a piece of advice for Springfield to consider now: Investment Tax Credit.

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