Low-interest Loans for Energy Service Providers

Since May 2010 Solcasa, a national financing scheme has been offering low-interest loans to Energy Service Companies (ESCOs), which install, operate and maintain solar thermal installations to sell their solar gains to customers, such as hotels or multi-family building owners. The administrator of Solcasa, the Institute for Energy Diversification and Saving, IDAE, has granted loans of EUR 2.723 million to 29 projects totalling 3,23 MWth until September 2019. Solcasa is ongoing and there are still almost EUR 1.3 million available in funding low-interest loans.
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Name of programme


Type of incentive

Loans scheme

Eligible technologies

Solar thermal technology

Applicable sectors

Energy Service Companies can demand loans for hot water or space heating, cooling

Amount of loand

EUR 20,000 to 250,000 (100 % of the investment costs)

Terms of loan

10 years, 1 year lack, interest rate Euribor + 2.2 %

Requirements for system

Current legislation and other technical requirements from IDAE

Requirements for installation

Current legislation and other technical requirements from IDEA, 39 companies are certified

Finance provider

Institute for Energy Diversification and Saving, IDAE

Total funds

EUR 5 million

Funding source

Public budget

Effective date

13 May 2010

Expiration date

After running out of funds



Last review of this tabloid

September 2019




Baerbel Epp

Bärbel Epp is Founder and Director of the German communication and market research agency solrico and editor-in-chief of solarthermalworld.org