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Bitmain's first product was the Antminer S1 which is an ASIC bitcoin miner making 180 gigahashes per second (GH/s) while using 80–200 watts of power. [8] Bitmain as of 2018 had 11 mining farms operating in China. [7] Bitmain was involved in the 2018 Bitcoin Cash split, siding with Bitcoin Cash ABC alongside Roger Ver. [9]
Return on investment (ROI) or return on costs (ROC) is the ratio between net income (over a period) and investment (costs resulting from an investment of some resources at a point in time). A high ROI means the investment's gains compare favorably to its cost.
Other panellists welcomed Trump's presidency as promising big opportunities for the sector, with Coinbase CEO Brian Armstrong saying Trump's new term will draw a lot of investment into crypto ...
The SROI method as it has been standardized by Social Value UK, formerly called the Social Return on Investment (SROI) Network, [1] provides a consistent quantitative approach to understanding and managing the impacts of a project, business, organisation, fund or policy. It accounts for stakeholders' views of impact, and puts financial 'proxy ...
From January 2008 to December 2012, if you bought shares in companies when John L. Hennessy joined the board, and sold them when he left, you would have a -8.3 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
From January 2008 to December 2012, if you bought shares in companies when John W. Thompson joined the board, and sold them when he left, you would have a 1.1 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
From January 2008 to April 2010, if you bought shares in companies when Frank Savage joined the board, and sold them when he left, you would have a -18.1 percent return on your investment, compared to a -17.7 percent return from the S&P 500.
The issue is still subject of numerous studies, and prompting academic argument. That's mainly because the "energy invested" critically depends on technology, methodology, and system boundary assumptions, resulting in a range from a maximum of 2000 kWh/m 2 of module area down to a minimum of 300 kWh/m 2 with a median value of 585 kWh/m 2 according to a meta-study from 2013.