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Philipp Kunze (right) has plenty to say about project business

NextPower: more value from utility-scale projects

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CEO Talk: Utility-scale solar projects across Europe are under growing cost pressure, even as expectations around yield, grid integration and long-term profitability continue to rise. Which new ideas boost project value, and which innovations matter most to the market? Let‘s find out.

Getting to the crux of the crimp – careless work could render the best system at risk

EMC-direct on DC connectors: crimp right or risk failure

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The quality of plug connections is critical to safety, efficiency and longevity. Even minor crimping errors can have serious consequences. Follow these tips to ensure correct installation.

Announcing the new world record at the 2026 Solar and Energy Storage Innovation Conference

LONGi lifts silicon-perovskite tandem cell efficiency to 35.5 percent

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The certified result, confirmed by ESTI on 14 July 2026, extends a run of gains that has taken LONGi from 34.85 to 35.5 percent in under a year.

Martin Green (left) has spent five decades advancing solar module technology.

Solar Investors Guide – Martin Green on glass-free modules

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Professor Martin Green of the University of New South Wales is a leading figure in solar research, holding numerous patents and efficiency records dating back to 1974. Now Chief Scientific Officer at Euronergy, he is focused on developing glass-free, lightweight modules that are exceptionally thin and easy to install.

Solar's daily peak, flanked by pumped-storage dips, cropped from the full weekly chart

Germany's renewables share climbs to new highs

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Fraunhofer ISE reports that solar generation rose ten percent year on year to a record 43.2 TWh, as wind and solar together reshaped the country's power 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)