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Solar

Solar energy harnesses the sun’s radiation to generate electricity or heat using technologies such as solar photovoltaic (PV) panels and solar thermal systems. As one of the world’s fastest-growing renewable energy sources, solar power is helping businesses and governments reduce greenhouse gas emissions, improve energy security and accelerate the transition to a low-carbon economy. Falling technology costs, improved efficiency and growing investment have made solar energy a key pillar of global decarbonisation efforts.

SustainabilityOnline brings you the latest developments in solar, including solar power generation, photovoltaic technology, energy storage, clean energy investment, corporate renewable energy strategies and evolving policy and regulation. We explore how organisations are increasing solar capacity, improving energy efficiency, reducing carbon emissions and integrating renewable electricity into their operations. We also examine developments in battery storage, grid infrastructure, sustainable finance, industrial decarbonisation and the role of solar energy in achieving net zero ambitions.

Related topics: solar energy, solar power, solar photovoltaic (PV), solar panels, solar thermal energy, renewable energy, clean energy, battery storage, energy transition, decarbonisation, greenhouse gas emissions, renewable electricity, energy efficiency, climate policy, sustainable infrastructure, net zero, corporate sustainability and ESG reporting.

Changes to US federal tax credits reshaping wind and solar outlook
  • News
  • Renewables

Changes to US federal tax credits reshaping wind and solar outlook

1 week ago1 week ago5 mins

Changes to federal tax credits in the United States are ushering in a ‘new phase’ in renewable energy policy, with…

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Renewable energy supplied over 28% of total US electricity in the first eight months of 2026
  • News
  • Renewables

Renewable energy supplied over 28% of total US electricity in the first eight months of 2026

2 weeks ago1 week ago3 mins

Renewable energy supplied 28.1% of total US electricity generation during the first eight months of this year, with output from…

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UK's clean-power transition depends on grid connections and market reform
  • Green Energy
  • News
  • Renewables

UK’s clean-power transition depends on grid connections and market reform

2 weeks ago2 weeks ago4 mins

While the UK is moving into a ‘infrastructure-intensive phase’ when it comes to renewables, this expansion will depend on faster…

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Renewables are set to account for a 25.9% share of Qatar's installed power capacity by 2035, compared to just 12% in 2025, according to a new report by GlobalData.
  • News
  • Renewables

Increased solar investment set to bolster Qatar’s renewables share

3 weeks ago3 weeks ago3 mins

Renewables are set to account for a 25.9% share of Qatar‘s installed power capacity by 2035, compared to just 12%…

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GlobalData has suggested that Brazil is 'entering a new phase of power sector development'
  • News
  • Renewables

Energy market reforms in Brazil expected to accelerate growth in renewables

1 month ago1 month ago5 mins

Brazil’s presidential election is heading for a second-round run-off, with far-right candidate Flávio Bolsonaro in the ascendancy having picked up…

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Spain's solar industry is entering a period of stabilisation after last year's significant capacity growth, according to the Spanish Photovoltaic Union (UNEF).
  • News
  • Renewables

Spain’s solar industry takes stock after strong growth in 2025

2 months ago2 months ago3 mins

Spain’s solar industry is entering a period of stabilisation after last year’s significant capacity growth, according to the Spanish Photovoltaic…

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Portugal's government has acquired a 13.7% stake in REN — Redes Energéticas Nacionais, the country's grid operator, to safeguard its national energy security.
  • Green Energy
  • News

While renewables are expanding, Portugal can’t turn its back on gas just yet

2 months ago2 months ago4 mins

Portugal‘s government has acquired a 13.7% stake in REN — Redes Energéticas Nacionais, the country’s grid operator, to safeguard its…

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Some 21% of UK citizens believe that nuclear should be prioritised as a future energy source, just ahead of solar (19%) and offshore wind (18%), a new YouGov study commissioned by Eland Cables has suggested.
  • News
  • Renewables

UK consumers favour nuclear over solar and wind as future energy source, survey suggests

2 months ago2 months ago3 mins

Some 21% of UK citizens believe that nuclear should be prioritised as a future energy source, just ahead of solar…

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Renewable energy sources generated 30.2% of the electricity in the United States in the first half of 2026, up from 27.8% in the corresponding period last year, according to US Energy Information Administration (EIA) data, reviewed by the SUN DAY Campaign.
  • News
  • Renewables

Renewables generated more than 30% of US electricity in the first half of 2026

2 months ago2 months ago3 mins

Renewable energy sources generated 30.2% of the electricity in the United States in the first half of 2026, up from…

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Plug-in solar panels enable UK households to 'take control' of their energy bills
  • News
  • Renewables

Plug-in solar panels enable UK households to ‘take control’ of their energy bills

2 months ago2 months ago3 mins

British energy secretary Miatta Fahnbulleh has said that the rollout of plug-in solar panels in the UK represents a “simple,…

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Poster announcing Decarbon 2027: Oil and Gas Decarbonisation Congress, with abstract glassy bubbles at the bottom.

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INTERVIEWS

Opella’s Marissa Saretsky on why healthcare needs to shift towards prevention and long-term health management
repurposedMATERIALS’ Damon Carson on why businesses are throwing away materials that still have value
Mastercard’s Ellen Jackowski on how businesses are strengthening resilience through sustainability
Electrification Alliance’s Adrian Hiel on where electrification can have the greatest positive impact
Wind Energy Ireland’s Dave Linehan on the grid capacity conundrum

Banner for the Oil and Gas Decarbonisation Congress (Feb 15–16, 2027, Berlin) with a dark background and abstract ribbon artwork.

EXPLAINERS

What we did wrong in marketing sustainable products – and how to do it better
Shifting decision-making closer to communities
How a family-owned recycler handles metal, cars, and e-waste
Engineers test cloud-seeding drones for areas facing chronic water shortages
How circular construction actually works – from design to demolition and back again

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