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A family portrait of grid flexibility, from compact starter to utility-scale heavyweight

Sungrow sharpens utility focus with PowerTitan 3.0

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Designed for large-scale applications, the PowerTitan 3.0 battery system enters the European market with a focus on modularity, site adaptability and resilience under challenging climatic conditions.

Scenes from KEY 2025 in Rimini

KEY 2026 expo line-up highlights finance and energy strategies

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The Energy Transition Expo from 4 to 6 March in Rimini, Italy, will feature an extensive programme of conferences, seminars and strategic debates focused on the energy transition at both national and international levels.

Battery energy storage is set to be a major topic at the upcoming KEY conference in Rimini

KEY 2026 – Nidec Conversion debuts next-gen PCS

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At the Rimini trade fair, Nidec Conversion will focus on BESS and e-mobility, presenting a newly developed power conversion system for storage, PV and hydrogen.

Stephan Schindele (right) and Karsten Schäfer discuss the emerging opportunities for PV in Europe.

Solar Investors Guide #11 – Agri-PV reimagines farmland for the future

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Podcast: Elevated solar modules and solar fences are helping farmers generate clean solar power on their pastures and arable land. Stephan Schindele, head of the agri-PV division at BayWa r.e., explains how agricultural transformation and the energy transition are interconnected, offering clear benefits for both farmers and investors. Several countries across Europe are already leading the way with large-scale agri-PV projects.

From green fields to solar yields – the English countryside embraces clean energyFrom green fields to solar yields – the English countryside embraces clean energy

UK – Severn Trent Green Power expands with four new parks, adding 180GWh

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The renewable energy provider has confirmed construction of four new solar parks in northern and central England, marking its first major venture into solar and expanding its energy mix.

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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)