Skip to main content Skip to main navigation Skip to site search

Latest news

New mounting technology is opening up even more areas for solar power

Solar Investors Guide – Innovations for mounting

-

Energy crises and rising fossil and nuclear prices are making solar and battery storage more attractive than ever, driving demand across industrial rooftops, open land and car parks – find out more in the latest guide.

SolarEdge's Nexis stack in the corner, quietly doing the household's heavy lifting

Two markets and scaling: Nexis storage reaches 80 kWh

-

Fresh from its German introduction – and reportedly brisk uptake – the three-phase platform is now available in Austria and Switzerland, pairing a 20 kW hybrid inverter with clip-together 5 kWh battery blocks.

Nikola Bitrak joins the panel at the 5th Annual Solar Energy Conference in Skopje, 23–24 September, organised by Solar Macedonia

Nikola Bitrak: Renewables law "a new phase" in North Macedonia.

-

The country's first dedicated clean energy act aligns Skopje with EU rules, introducing auctions, two-way CfDs and corporate PPAs. Colenco CEO Nikola Bitrak assesses what the framework achieves and where work remains.

Solar asset inspection: the raw material for Málaga's quality agenda

Solar Quality Summit Europe turns its lens on assets and performance

-

Engineers, financiers and operators will convene on 23 and 24 February 2027 for the Solar Quality Summit Europe, with a programme centred on real-world performance data and long-term asset value.

Module layout view, where a rogue skylight is no match for drag-and-drop planning

Solar-Planit puts project overview front and centre

-

Baywa r.e. Solar Trade has overhauled the start page of its web-based PV planning tool, adding Kanban boards, custom project statuses and expanded management features for specialist contractors.

Latest videos

More videos

PV on TourPV Guided Tours


 

markets

financing

hybrid generators

inverter

mounting

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)