Germany’s ambitious solar expansion plans could face an unexpected challenge as the country’s largest energy industry association calls for urgent changes to inheritance tax rules affecting agricultural land leased for solar photovoltaic (PV) projects.
The German Association of Energy and Water Industries (BDEW) warned on June 5 that current regulations are creating uncertainty for landowners and investors, potentially slowing the development of ground-mounted solar installations. The organization is urging lawmakers to reform inheritance and gift tax rules that it says are becoming a barrier to renewable energy growth.
The debate comes at a crucial moment for Germany’s energy transition. The country added 16.2 GW of new solar PV capacity in 2025, making it one of Europe’s largest solar markets. During the first three months of 2026, ground-mounted solar was the only photovoltaic segment to record year-on-year growth, accounting for nearly half of the 3.51 GW of new solar capacity added nationwide.
Why BDEW Sees a Problem
According to BDEW, agricultural land currently loses its classification as agricultural or forestry assets for tax purposes when it is leased for a ground-mounted solar PV installation. While the land continues to be used by the same owner, the change in classification can result in the loss of valuable inheritance and gift tax benefits.
Kerstin Andreae, chair of the BDEW executive board, said this creates significant financial risks for farming families. If land is inherited or transferred as a gift, owners could face substantial tax liabilities. In some cases, BDEW says the tax burden may exceed the total lease income generated by a solar project over its entire operating lifetime.
The association argues that this legal uncertainty is making lease agreements more complicated and discouraging participation in solar developments. For investors and developers seeking suitable land, the situation adds another layer of complexity to project planning and financing.
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Proposed Reforms Could Support Solar Growth
To address the issue, BDEW has published a position paper outlining potential reforms to Germany’s inheritance and gift tax framework. The association’s preferred solution would allow land used for solar installations to retain its agricultural and forestry classification while a PV system is operating on it.
BDEW has also proposed creating a dedicated incentive provision for ground-mounted solar projects. Possible measures include a flat-rate valuation discount or a tax-free allowance designed to reduce inheritance and gift tax exposure for affected landowners.
The discussion reflects a broader challenge facing renewable energy markets worldwide. Governments are working to accelerate clean energy deployment while ensuring existing tax and land-use policies do not create unintended obstacles. Similar issues are emerging in other countries investing heavily in renewable infrastructure, including Canada’s major push to expand wind and solar energy projects.
For Germany, resolving the inheritance tax question could play an important role in maintaining momentum in the ground-mounted solar sector. Industry leaders argue that greater legal certainty would encourage more landowners to participate in renewable energy projects while helping the country stay on track with its long-term clean energy goals.
Source: IndexBox
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