Balcony or “plug-in” solar is rapidly gaining popularity, as it gives consumers who might not have easy access to distributed solar generation a straightforward way to deploy the technology and begin saving on their power bills. Meanwhile, as drivers transition to electric vehicles, the possibility of deploying the batteries as a flexible grid resource hooked up to bidirectional chargers is also growing.

These new technologies are allowing residential utility customers to take greater control over their electricity consumption and spending. But wider adoption has implications for grid safety and reliability, and several states are already moving to regulate and manage the addition of these resources.

In this episode, Dan Testa discusses these issues with Kirsten Errick, an S&P Global Energy reporter who covers renewables. Kirsten interviews Cora Stryker, co-founder of Bright Saver, a plug-in solar company, and Aseem Kapur, chief revenue officer at GM Energy.

In April 2026, the European Commission adopted interim guidance stipulating that solar and battery storage projects using inverters or power conversion systems sourced from high-risk countries would be ineligible for EU funding, citing concerns over cybersecurity and grid resilience. Among the affected countries is China, Europe's dominant supplier of clean energy technologies.

In this episode of Energy Evolution, host Eklavya Gupte is joined by Lena Dias Martins, electricity pricing reporter at S&P Global Energy Platts, to explore the implications of this policy for Europe's rapidly expanding solar and battery storage sectors.

They examine how markets have responded, which regions may be most affected, and whether viable alternatives to China-made inverters are available at scale.

The episode features Cormac Gilligan, director of clean technologies and supply chains at S&P Global Energy Horizons, who explains how the restrictions could signal the start of a broader global shift toward greater diversification of clean energy supply chains.

We also hear from Jan Krčmář, executive director of the Czech Solar Association, who shares the industry perspective on the practical challenges facing developers and installers, how the sector is responding to the new requirements, and what the changes could mean for solar deployment across Europe in the years ahead.

On July 14, grid operator PJM released the results of its latest capacity market auction for the 2028-2029 delivery year. Prices hit the federally approved cap of $325/megawatt-day, but the amount of procured capacity came up short of PJM’s reliability requirement by 6.8 gigawatts.

In other words, prices went as high as they were allowed to go but still didn’t incentivize enough generation to meet the reliability requirement PJM wanted. Although PJM has other options to secure that capacity, the results of this latest auction underscore mounting concerns about rising prices and reliability in the region managed by the grid operator, which provides electricity for 67 million people across 13 states. And power demand from data centers is contributing to these issues.

Joining Dan Testa on this episode to talk through some of these issues is Darren Sweeney, a senior reporter at S&P Global Energy. Sweeney interviews Paul Segal, CEO of LS Power, a private independent power producer with a major presence in PJM, and Tanya Peevey, an S&P Global Energy CERA analyst for North American power and renewables.