Solar panels typically account for only about the third of the cost of a single-axis power plant, thanks to a plunge in photovoltaic module prices in recent years.

FORBES: Can Solar Robots Cut The Cost of Renewable Energy?

Mr Schroeder has ignored warnings from US leaders and forged, in effect, a rival axis of power and diplomacy.

BBC: Analysis: Schroeder challenges the US

The global market may be shifting toward a different axis of power, but the modern American employee is evolving to compete in this new world, regardless of where its center lies.

FORBES: U.S. Is On Cloud 9 When It Comes To Competition

So, a solar power plant equipped with a QBotix robot will generate power at a levelized cost of electricity (LCOE) that is 8 to 15 percent lower than a power plant with single-axis tracker and 15 to 20 percent lower than a power plan with panels in fixed positions.

FORBES: QBotix Solar Robots: Intelligent Mobility

The first axis looks at how leaders exercise their power, from centralized and top-down to decentralized and bottom-up.

FORBES

But she is firmly positioned on the other axis that runs through Spanish politics, the balance of power between central government and the regions.

ECONOMIST: Spain's troubled prime minister