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Terra Energy Resource Techno

The company that you are referring to is Tecogen Inc. (TGEN), not TEDRG, as there is no listed company with the ticker symbol TEDRG on any US stock exchange.

Tecogen Inc., based in Waltham, Massachusetts, is a leading manufacturer of clean energy products, including cogeneration systems and high-efficiency water heaters, for commercial, industrial, and institutional customers. The company's products use natural gas to generate electricity and heat on-site, reducing customers' energy costs and carbon emissions.

Here are some key points about Tecogen's historical performance and growth:

* The company's revenue has grown from $41.7 million in 2017 to $52.4 million in 2020.

* Tecogen's net income has been inconsistent in recent years, with losses in 2018 and 2020 and profits in 2017 and 2019. However, the company has been able to reduce its net loss over the past three years, from $3.1 million in 2018 to $0.3 million in 2020.

* Tecogen's earnings per share (EPS) have also been volatile, ranging from a loss of $0.15 in 2018 to a profit of $0.03 in 2019. In 2020, the company reported a loss per share of $0.01.

* The company's return on equity (ROE) has been positive in recent years, ranging from 2.1% in 2018 to 4.5% in 2019. However, the ROE declined to 0.3% in 2020.

* Tecogen's gross profit margin has remained relatively stable in recent years, ranging from 34.1% in 2017 to 35.3% in 2020.

* The company has a moderate amount of debt, with a debt-to-equity ratio of 0.6 in 2020.

It's important to note that past performance is not indicative of future results, and investing in the stock market always carries risks. Before making any investment decisions, it's recommended to conduct your own research and consult with a financial advisor.

Disclosure: I/we have no positions in any stocks mentioned, and no plans to initiate any positions within the next 72 hours.