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Report
Jun 2025
Health
Multiple benefits of Energy Efficiency 2025 Energy efficiency provides multiple benefits. This page explores health. Why is energy efficiency important for health? Energy efficiency can improve health by creating healthy indoor and outdoor living environments with comfortable temperatures and humidity levels, and improved air quality. Key facts Energy efficiency measures have been linked to improved health, such as fewer respiratory illnesses.Targeted energy efficiency programmes can reduce doctor and hospital visits and save health costs. In New Zealand, a retrofit programme led to a 43% reduction in hospital admissions for respiratory conditions, while a similar programme in Ireland reduced the…
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Statistics report
Sep 2025
Cost of Capital Observatory Dashboard
Overview The dashboard is a free resource that provides data on the cost of capital focused on clean energy projects in emerging and developing economies. It also provides information of the main underlying risks perceived by investors and financiers in each country as well as case studies. We hope these resources will help drive policy changes that can lower financing costs in the parts of the world that most need it. For additional information on how to estimate the cost of capital, this IEA article highlights the importance of financing costs in the energy transition, defines what financing costs are (also commonly…
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Fuel report
May 2025
Outlook for Biogas and Biomethane Key findings
Biogases are a hidden solution to many of today’s energy security and sustainability challenges. They turn waste into sustainable, low-emissions fuels. The attraction of biogases lies in the integration of energy, environment, waste and emissions policies and targets. Biogas can be used directly as heat by households and industry, and to produce electricity. Biomethane, which is an upgraded form of biogas, is a locally sourced, drop-in substitute for natural gas. This report assesses the global potential and costs of developing biogas and biomethane using a first-of-a-kind geospatial analysis. It provides detailed country- and region…
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Country
Bulgaria
Bulgaria adopted The Energy from Renewable Sources Act in 2011. The Act regulates the generation and consumption of energy from renewable sources with the aim of achieving the national targets in terms of renewable energy use in final gross energy consumption.
- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Flagship report
Oct 2022
World Energy Outlook 2022 The global energy crisis
Introduction The world is in the middle of a global energy crisis of unprecedented depth and complexity. Europe is at the centre of this crisis, but it is having major implications for markets, policies and economies worldwide. As so often is the case, the poorest and most vulnerable are likely to suffer most. The strains did not begin with Russia’s invasion of Ukraine, but they have been sharply exacerbated by it. Extraordinarily high prices are sparking a reappraisal of energy policies and priorities. The Europe-Russia energy relationship lies in tatters, calling into question the viability of decades of…
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Technology report
Dec 2025
Policy options to accelerate distributed solar PV in Ukraine
Accelerating distributed solar PV and battery energy storage deployment will support Ukraine in establishing energy security.In the year following the Russian Federation’s full-scale invasion of Ukraine in 2022, available dispatchable power generation capacity halved from roughly 38 GW to 19 GW. After severe attacks in spring 2024, capacity declined further, down to 12 GW. Towards the end of 2024 Ukraine was able to restore 3 GW and has worked to restore and add additional capacity throughout 2025, despite ongoing attacks.Distributed solar PV has played a key role, providing cost effective and rapid increases in electricity generation capacity, contributing…
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Report
Nov 2025
Global Energy and Climate Model Current Policies Scenario (CPS)
The 2025 edition of the World Energy Outlook (WEO) reintroduces the Current Policies Scenario (CPS). It was a regular feature of the International Energy Agency suite of scenarios until the WEO-2020, when it was discontinued amid turmoil in energy markets and rapid changes in the policy landscape during the Covid-19 pandemic. Now that the world has passed through the pandemic and the global energy crisis triggered at the outset of the Russian invasion of Ukraine, there is merit in revisiting the CPS. The scenario relies only on measures that are formally written into existing legislation and regulation, and…
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- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Country report
May 2026
Portugal 2026 Executive summary
Thanks to steady expansion of hydropower, wind power generation and solar photovoltaics (PV) in recent years, Portugal has one of the lowest carbon intensities of electricity generation among IEA Member countries. Portugal is entering a mid‑transition that requires managing two interconnected energy systems that are moving in opposite directions: one is based on renewables and electrification and must scale up rapidly; the other is a legacy fossil fuel system that must decline in an orderly way to avoid stranded assets and price shocks. Electricity is becoming the central pillar of energy security and the main driver of emissions reductions.Portugal…