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Opinion & analysis

U.S. August irradiance: Sunshine before the storm in the South

In a new weekly update for pv magazine, Solcast, a DNV company, reports that Tropical Storm Hillary and its associated cloud systems led to significantly lower irradiance than usual for August, in a broad area from Baja, through Southern California, and along the Rockies to British Columbia.

El Niño threatens U.S. winter solar generation

In a new weekly update for pv magazine, Solcast, a DNV company, predicts that El Niño will likely bring lower than normal solar power production through winter in the United States. Its analysis is based on data collected from previous El Niño events.

Driving down cost of solar, key to unlocking a green hydrogen future

Reducing the cost of solar electricity will be the key to unlocking the next chapter of the energy transition: a green hydrogen economy, according to Jim Tyler, CEO of solar technology company Erthos.


Multi-day energy storage increases grid capacity by factor of ten

Form Energy released a white paper that provides further evidence that multi-day energy storage, like its iron-air technology, can substantially reduce the costs for New York to achieve its ambitious decarbonization targets.

PV wafer formats continue to evolve

Differences in wafer and module specifications, which have bedeviled solar developers in recent years, could now be narrowing.

Promoting electrification without penalizing efficiency

Economist and rate design expert Ahmad Faruqui offers an alternative to California’s proposed income-based fixed monthly utility bill charge.


FERC’s proposed rule would harm consumers and the energy transition

Transmission competition is the key to upgrading our electricity grid in a cost-effective manner. FERC must embrace competition and deliver on its mandate to ensure just and reasonable rates for consumers.


Pressure brings sweltering sun and soaking rain: July extremes in America

In a new weekly update for pv magazine, Solcast, a DNV company, presents the solar irradiance data it collected for North America this month. July’s high pressure in the southwest and trough in the northeast dramatically influenced the region’s solar energy production.

Six terawatt hours of grid-scale energy storage by 2050

To reach the 6 TWh of energy storage needed to clean the grid by 2050, we need to grow grid-scale energy storage by 98.4 times. Panelists in a recent Reuters webinar said that the path requires facing critical challenges as well as continued technology innovation, public-private partnerships, regulatory reforms, and more.

Thermal batteries unlock new opportunities for solar developers, financiers

The industrial sector accounts for one-third of global emissions. How can thermal batteries unlock the power of renewables for industry?

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