Japan Pivots Solar Strategy: New Subsidies Exclude Silicon, Prioritizing Perovskite for 20 GW by 2040

September 13, 2026

pv magazine India Japan

Overview

Japan’s Ministry of the Environment will remove conventional silicon solar panels from new subsidy programs starting fiscal year 2027, signaling a strategic shift to prioritize next-generation perovskite solar cells. This initiative aims to bolster industrial competitiveness and achieve environmental targets, with the country targeting approximately 20 GW of perovskite deployment by 2040. Leveraging its significant iodine resources, Japan seeks to establish a leading position in advanced solar technology.

In Depth

Background

Japan has long been a key player in the global solar energy market, but with increasing competition and the need for more advanced, sustainable solutions, its Ministry of the Environment has announced a significant policy redirection. This shift reflects a global trend towards embracing next-generation renewable energy technologies.

Key Findings

Starting in fiscal year 2027, Japan’s new subsidy programs for solar energy will no longer include conventional silicon solar panels. Instead, the focus will exclusively be on supporting cutting-edge solar technologies, with a strong emphasis on perovskite solar cells. This strategic move is designed to enhance Japan’s industrial competitiveness in the burgeoning advanced solar sector and to accelerate the achievement of its ambitious environmental objectives. A core component of this strategy is the country’s plan to deploy approximately 20 GW of perovskite technology by 2040. Japan possesses significant iodine resources, which are crucial for perovskite manufacturing, and the government intends to leverage these domestic resources to support its industrial goals.

Significance & Outlook

This policy change positions Japan at the forefront of perovskite solar cell development and deployment. By concentrating public support, the government aims to de-risk investment in these novel technologies, foster innovation, and scale up domestic manufacturing capabilities. The target of 20 GW by 2040, supported by domestic iodine supplies, demonstrates a clear commitment to establishing perovskite technology as a major contributor to Japan’s future energy mix. This move could also influence other nations to re-evaluate their solar energy subsidy frameworks, potentially accelerating the global transition towards more efficient and versatile solar power solutions.

Source: https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHWaY_aFRfgCAb3fZa2b9MmSNs9cF7TJWRHi2jxnAfQKbFQbg_tSplegDxHvyLfXqTErwXkVX5Z83SGVCEyrzlSvLYQ9VJTf2Er5iT8RPn9tH1-x1nIT9BirfHKhriXjZ_eVPkzjpywZnugJT5oicXcO_a4UNpYdL1y1IhDVwnHCeYz1C3VJLNKWY0VNzv66CwLAyQKdrzS0AqIyZa1MU9xP3o5U4o1zKyQvtKhuLNwQnv

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