Self-consumption is no longer a marginal option to conquer half of Spain
The spring of 2025 marked a before and after in the psyche of the Spanish consumer. The so-called “Great Blackout”which left millions of homes without power on the Peninsula, transformed the perception of solar panels. What was previously seen mainly as a way to reduce the monthly bill, is today perceived as a guarantee of resilience and energy independence. in the face of market volatility. The consolidation data. According to the “Solar Report 2025: X-ray of self-consumption in Spain”, prepared by SotySolar in collaboration with the Spanish Photovoltaic Union (UNEF)the market has entered a phase of maturity after years of accelerated expansion. Spain closed the 2024 financial year with an accumulated installed capacity of 8,137 GW. These figures closely coincide with the records of the Ministry for the Ecological Transition (MITECO), which places the power at 8,255 GW. However, Red Eléctrica raises the total estimate current at 8.7 GW, integrating data from the Electrical Measurements System (SIMEL) and estimates from the System Operator (OS). The end of “refundable” subsidies. After the closure of the European Next Generation funds, the sector has stopped depending on direct aid to embrace more structural profitability. This change is reflected on the national map: Catalonia has become the benchmark for success, with an increase of 20.6% in the volume of interested parties thanks to agile management of its local incentives. Despite the accumulated strength, the beginning of 2025 presented a slight cooling: the residential sector suffered a drop of 14% in the first quarter compared to the average for 2024. Even so, self-consumption has maintained sustained growth since 2021 and demonstrates greater stability than the large plant market (utility scale). The profile of the new consumer. The user profile has evolved towards a more informed and demanding one. Although financial savings continue to be the main driving force for 65% of users, factors such as sustainability (12%) and energy independence (8%) have gained unprecedented weight. As José Donoso, CEO of UNEF, explains, self-consumption has gone from being a minority technology to an “everyday, reliable and essential appliance.” This maturity is reflected in the choice of the installer: the price continues to matter (45%), but trust based on recommendations (25%) and support in procedures and aid (20%) are now decisive factors. The new standard. The acquisition model has undergone a radical transformation. Financing has gone from being a barrier to a driving force: between 60% and 70% of households opt for flexible payment formulas, a figure that rises to 80% in projects that exceed €10,000 or include batteries. In fact, strategic partners like Pontio They project to exceed 10,000 funded installations in 2026. This financial boost facilitates the integration of aerothermal energy, which has established itself as the ideal companion to photovoltaics. 66% of solar system owners plan to install aerothermal in the next three years. However, as experts in Xataka warn80% of Spanish houses have technical deficiencies in their electrical installation, which requires a prior evaluation of the insulation to prevent the investment from becoming an expense that is difficult to amortize. Roadmap. To prevent progress from slowing down, UNEF has proposed in its presentation urgent measures that strengthen the structural profitability of the sector: Tax incentives: Apply a reduced VAT for both installations with and without batteries. Network expansion: Extend the distance of shared self-consumption from the current 2 km to 5 km. Administrative simplification: Extend the exemption from requesting access and connection permits to all facilities that inject less than 15kW into the grid. Review of tolls: Modify the distribution between the fixed and variable part (target 25% fixed and 75% variable) to encourage savings. For its part, Red Eléctrica has reinforced the “maximum observability” of the system, publishing detailed information on self-consumption on all its platforms from the end of 2025, including a new demand curve (“Total Scheduled”) that integrates the impact of this energy on the national grid, where it already represents close to 4% of demand. An irreversible path. Self-consumption in Spain has come of age. It is no longer a specific response to a price crisis, but a strategic decision. As José Carlos Díaz Lacaci, CEO of SotySolar, points out, the path towards electrification is now “irreversible.” The challenge for 2026 will be to modernize the real estate stock and consolidate an intelligent management model that guarantees that every ray of sunlight captured becomes energy freedom for the citizen. Image | Unsplash Xataka | Landing at an airport full of solar panels had become a drama. Until Malaga had an idea