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Alastair Mounsey is Vice President Europe at JA, formerly JA Solar

JA’s Alastair Mounsey: “Europe pushes us technologically”

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The VP Europe at JA discusses why Europe pushes the company technologically, its evolution into an integrated PV and storage supplier, and the European roadshow introducing partners to its next phase.

EES Europe in Munich, June 2026: C&I and utility storage is driving the energy transition

Upcoming investor newsletter: storage takes on subsidy-free solar

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An economic solution is emerging in the dispute over EEG feed-in tariffs and grid bottlenecks: battery storage systems that let solar feed-in be managed commercially while easing pressure on the grid, ahead of our next investor newsletter on 16 September.

The cradle of the Renaissance and host city for December's Integrated Photovoltaics Conference

Italy – Florence to host conference on solar in the built environment

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The IPV Conference will gather architects, planners and researchers at the Chamber of Commerce on 3 and 4 December to examine how photovoltaics can be integrated into buildings, infrastructure and vehicles.

As the sun sets, storage takes over – the themes shaping Intersolar Summit Romania 2026

Romania's solar pipeline draws investors to Bucharest summit

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After passing 9 GW of installed PV in 2025, the EU's newest solar frontrunner is now targeting more than 12 GW by 2030. The Intersolar Summit Romania will bring 350 delegates to Bucharest on 13–14 October to map out the opportunities.

Sebastian Durben (left) is an expert in AI-supported energy management

HYXI: AI-supported energy manager for residential and C&I storage

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PV Guided Tours: HYXI is showing off its newly unveiled Muse AI-Native Energy OS, which transforms energy use from passive backup into active, learning intelligence. Highlights include the Aura all-in-one storage, the AC-coupled Halo micro-storage system and the liquid-cooled Atlas C&I unit.

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What is photovoltaics?

Photovoltaics (PV) refers to the generation of electrical energy from sunlight. At the heart of this process are the solar-active semiconductors known as solar cells, which capture sunlight and convert it directly into electricity.

From a technical standpoint, a PV system or solar installation functions as a generator. Here, individual solar cells are combined into a solar module, which is protected from the elements. These modules are then assembled into a larger solar generator, which can be mounted on rooftopsfaçadesopen ground or specially designed structures. The electricity generated is direct current (DC), which is converted into alternating current (AC) by an inverter. This AC power can be used directly on site or fed into the public grid via the building’s connection. The electricity is typically supplied to the local utility or grid operator.

Larger PV systems installed on open land are often called solar parks. These feed power into the grid via dedicated transformers and switchgear. In many countries special Acts and regulations govern remuneration for solar power, whether via feed-in tariffs or market premiums for direct sales to third parties.

Self-consumption can be increased by using solar power for heating waterroom heating, air conditioning or refrigeration. Battery storage systems help by storing surplus solar electricity for later use. These so-called solar batteries improve system reliability, especially when solar output dips.

Not all incoming sunlight is converted into electricity. The conversion rate depends on the intensity and wavelength of the incoming light spectrum. This ratio between usable electrical output and the maximum available solar radiation is known as efficiency.

The performance of a solar generator or storage system is defined by its output. When multiplied by the number of sunshine hours, this gives the solar yield – the amount of electricity generated per day, month or year. In addition to charging and discharging power, solar batteries are also rated by their capacity, or the amount of energy they can store. Power is measured in kilowatts (kW) or megawatts (MW), while energy and yield are expressed in kilowatt-hours (kWh) or megawatt-hours (MWh). (HS)