A report by international energy research company Wood Mackenzie has posited that solar PV has the capacity to disrupt the U.S. energy landscape with similar speed and tumult as the shale industry managed and may even directly impact natural gas markets in the near future.
In asking if solar is the next shale, Wood Mackenzie research director for Americas power and renewable research Prajit Ghosh writes: "The role of solar in the North American power market has snowballed from a science experiment and a niche technology at best, to a key renewable competitor to wind, a regional threat for non-renewable technologies, and a potential disruptor of utility business models and the power industry at large."
Ghosh compares solars rapid rise to prominence to the upheaval caused by shale extraction technologies over the past decade, suggesting that the trend for cheaper solar modules will only continue as balance of systems (BoS) costs fall and efficiencies improve.
"While more efficient solar technology may command a higher module price, the capacity gains per square meter usually make high-efficiency modules more economic on a $/W basis," said Ghosh.
The researcher warned, however, that solars soft costs will also be highly dependent upon regulatory redesign, market structuring and heightened downstream competition, and while the potential of new PV materials and techniques such as perovskite and organic PV was not dismissed, Wood Mackenzie argues that conceptually at least such new technologies will play their part in the disruption.
"While these technologies are nowhere near commercial availability at the moment, they have a promising potential as an immensely versatile source of power generation," added the groups senior analyst, Chad Singleton.
Solar's leading role
Wood Mackenzie forecasts that solar PV costs will be at grid parity in 19 U.S. states by 2020, and expects that figure to double again by 2030. The parallels here to the shale energy revolution are noteworthy, the reports authors claim, adding that solar is likely to enjoy similarly rapid increases in GW installed, reaching 71 GW of cumulative PV capacity nationwide by 2035. Ghosh issues a note of caution regarding potential snags that could slow solars wider penetration, including "reliability concerns, legal statutes, and other factors including the indirect impact of lower oil prices on drilling activity and consequent gas prices", adding that they could "hurt solar economics".
The report concludes by imploring the solar industry to develop compensation mechanisms that will improve the technologys reliability, stating that current wholesale market structures are not designed to accommodate large amounts of solar energy. "Solar rooftops reduce the need for grid-connected power but do not eliminate it," said Ghosh. "Thus, issues around assigning fixed cost charges to maintain the grid have and will continue to rise."
However, as solar continues to represent a sound investment, it will not only gain greater penetration on the wholesale market but will also eat into the revenues of the natural gas sector. "The more solar you build, the less attractive natural gas becomes. This is not a forecast," says Ghosh. "It is already happening in California."
In response to the report, Forbes analyzed what solars disruption could in fact mean for the U.S. energy market. In its analysis, it warned that once gas plants become uneconomic they cease to exist as a backstop to the grid, which strips away backup capacity that is often needed for the hours in which solar and wind are not producing energy. This so-called Duck Curve has already been noted in California, and skeptics warn that a nationwide Duck Curve will not be tolerated nationwide for very long.
However, pro-solar commentators would argue that battery storage technology will be sufficiently evolved and installed by that point, rendering the argument moot.
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