Capstone Turbine : Sidoti Winter 2021 Virtual Investor Conference Presentation

INVESTOR PRESENTATION

January 2021

5MW ENERGY EFFICIENCY INSTALLATION

Safe Harbor

This presentation contains "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, including but not limited to, statements regarding the financial outlook, business strategy and plans and market trends, opportunities and positioning of Capstone Turbine Corporation (the "Company," "Capstone," "we," "our" or "us"). These forward-looking statements are based on current expectations, estimates, forecasts and projections. Words such as "expect," "anticipate," "should," "believe," "hope," "target," "project," "goals," "estimate," "potential," "predict," "may," "will," "might," "could," "intend," "shall" and variations of these terms and similar expressions are intended to identify these forward-looking statements, although not all forward-looking statements contain these identifying words. Forward-looking statements are subject to a number of risks and uncertainties, many of which involve factors or circumstances that are beyond our control. Factors that could cause actual results to differ from those projected include, but are not limited to: the impact of the COVID-19 pandemic on our business, results of operations and financial condition; failure to sustain or grow profitability or generate positive cash flows; failure to effectively introduce and market new products; delays in product introductions; significant competition; inability to further penetrate our current customer base, expand our user base and increase the frequency of use of our products by our customers; inability to achieve or maintain satisfactory pricing and margins; manufacturing difficulties; product defects or failures; potential adverse regulatory actions, and general market, political, economic and business conditions.

Further information on these and other factors that could affect the Company's financial results is included in the reports on Form 10-K, Quarterly Reports on Form 10-Q and other periodic filings with the Securities and Exchange Commission from time to time. Because of the risks and uncertainties, Capstone cautions you not to place undue reliance on these statements, which speak only as of the date of this presentation. There may be additional risks of which we are not presently aware or that we currently believe are immaterial which could have an adverse impact on our business. We undertake no obligation, and specifically disclaim any obligation, to release any revision to any forward-looking statements to reflect events or circumstances after the date of this presentation or to reflect the occurrence of unanticipated events.

Changing Global Energy Markets

Imminent Change

In Global Energy

The Paris Climate

Agreement

Change is the law of life. And those who look only to the past or the present are certain to miss the future.

John F. Kennedy

COVID-19 Pandemic Highlighted the Impact Mankind Has on the Planet 3

Making Green Being Green

In FY19 & FY20, Capstone customers benefited from:

• 718,000 Tons

of Carbon Savings

• Half a Billion

in Financial Savings

30% of Population is the First Generation to Have Grown Up With Climate Change 4