For years, Poland’s energy debate has focused almost exclusively on macro-level figures: gigawatts of new capacity, the timeline for building nuclear power plants, offshore wind farms, gas-fired units, and the staggering costs of upgrading and building out thousands of kilometers of transmission and distribution grids.
While these are critical pieces of the puzzle, a massive share of the real, tangible transition is happening far from the center of the grid – in homes, businesses, farms, manufacturing plants, schools, community centers, hospitals, and local energy cooperatives.
This is the realm of self-consumption – electricity generated locally and consumed on-site before it ever touches the wider grid. It is energy that the power grid often cannot see in its official statistics, despite its rapidly growing significance. As Dr. Krzysztof Bodzek points out, the biggest hurdle remains the lack of comprehensive, publicly available data on “behind-the-meter” electricity. While the Energy Regulatory Office (URE) publishes data on the number of micro-installations, their capacity, and the energy fed back into the grid, it does not keep transparent statistics on true self-consumption.
Not a Niche Add-on, but a Hidden Reserve
In the traditional energy model, power is generated at centralized, large-scale plants, sent over high-voltage transmission lines, distributed locally, and finally consumed by end-users. In a modern model built on decentralized renewable sources, a vast portion of that energy is generated right next to where it is used, bypassing long-distance transport altogether.
This represents a fundamental shift. Self-consumption is not just about a prosumer saving money on their electricity bill. From a national perspective, it reduces overall grid draw, cuts transmission losses, relieves infrastructure congestion, and potentially downsizes the volume of centralized generation capacity the state needs to build.
Between 2021 and 2025, the number of prosumers in Poland nearly doubled – climbing from approximately 0.85 million to 1.61 million – while estimated prosumer self-consumption surged from 0.9 TWh to 3.1 TWh. Notably, this 2.2 TWh increase outpaced the growth of net domestic electricity demand on the National Power Grid (KSE) over the same period.
| Indicator | 2021 | 2025 | Growth |
| Prosumers | ~0.85 million | 1.61 million | +0.76 million |
| Prosumer Self-Consumption | ~0.9 TWh | 3.1 TWh | +2.2 TWh |
When industrial self-generation is factored in, total self-consumption in 2025 is estimated at roughly 10.7 TWh—equivalent to about 6.6% of Poland’s entire domestic electricity consumption. This is no longer a marginal phenomenon.
As the PGE Group noted in its 2025 management board report:
“There is a clear link between economic growth and changing power demand on the grid. In the current decade, however, this relationship is not as pronounced as in the past, largely due to the significant increase in prosumer capacity. Despite real GDP growth of roughly 3.6%, grid demand actually fell by 0.9%. From this perspective, the projected 3.7% economic growth for the coming year provides a stable environment for the power sector, but it does not automatically translate into higher demand for electricity generated by PGE.”
The Challenge is Profile, Not Just Production
Simply installing solar panels does not guarantee high self-consumption; the real challenge lies in matching the generation profile with the consumption profile. A solar PV array produces the bulk of its power in the middle of the day, whereas households typically experience demand peaks in the morning and evening. For businesses, the dynamic is different – a manufacturing plant operating during the day can directly consume a much higher share of its own generation.
Consequently, self-consumption rates depend heavily on the consumer’s operational profile. As data shows, even with identical levels of self-sufficiency, different types of facilities yield vastly different self-consumption rates. A three-shift factory, a single-shift office, a livestock farm, and a commercial bakery will all yield completely different results.
This means energy policy cannot treat all decentralized installations as identical. We need tailored models that match specific load profiles: one set for households, and others specifically designed for industry, agriculture, local governments, and critical infrastructure.
Solar Dominates, but Lacks Flexibility
The largest volume of self-consumption in Poland will continue to come from solar PV, which has driven the bulk of capacity additions in recent years. However, from a local balancing perspective, dispatchable sources like biogas, biomass, and gas-fired cogeneration are incredibly valuable. These sources are far better suited to respond to local demand peaks, yet their potential remains underutilized, largely due to a lack of regulatory incentives for grid-balancing operations.
The future of decentralized energy will not rely on a single technology. Instead, it will depend on the smart integration of generation sources, battery storage, heat pumps, electric vehicles, demand-side response (DSR), and localized energy management systems.
Local Balancing Relieves Centralized Grid Pressure
The implications of this shift are profound. In a conservative scenario, local balancing could reduce annual demand on the centralized grid by about 20 TWh by 2040. In a baseline scenario, that figure rises to 27 TWh, and under a maximum-adoption scenario, it could reach as high as 90 to 100 TWh.
This does not mean Poland can scrap its plans for large-scale energy projects. Local sources cannot simply replace nuclear power plants, gas units, or offshore wind farms. What it does mean, however, is that a massive volume of energy will no longer need to be produced centrally, transmitted over hundreds of kilometers, and balanced solely by transmission system operators.
It is a fundamental philosophical shift: moving from a system that solely “delivers power to consumers” to one that coordinates millions of localized points of generation, consumption, storage, and flexibility.
The Critical Gap: Data
You cannot manage what you do not measure. Today, self-consumption is largely a blind spot. There is a glaring lack of comprehensive data on exactly how much energy is generated and consumed locally, how much is fed back into the grid, how much remains behind the meter, and how these patterns evolve over time.
This is not just a statistical gap; it is a strategic liability. If the state remains blind to self-consumption, it risks overestimating future demand for large-scale central generation while underestimating the power of decentralized energy. This data deficit can lead to flawed planning for grid expansion, energy storage needs, dynamic tariffs, and flexibility mechanisms.
Self-consumption data must become a permanent feature of the analyses conducted by URE, PSE (the grid operator), ARE (the energy market agency), and the ministries shaping energy policy. Without bridging this data gap, it will be virtually impossible to accurately assess how much of Poland’s future energy needs should be met by centralized assets versus local energy communities and prosumers.
Efficiency Losses Inside the Grid
The discussion around self-consumption also highlights the inefficiencies within the grid itself. In 2024, out of 171.4 TWh of gross electricity generated (after adjusting for exports), only 139.5 TWh actually reached end-consumers. The energy sector’s own consumption swallowed up 23.2 TWh, while transmission and distribution losses accounted for roughly 8.7 TWh.
[Gross Generation: 171.4 TWh]
This stark contrast shows that we shouldn’t only look to end-users for energy savings. Significant reserves are locked within the system itself. We can achieve massive gains by minimizing grid losses, phasing out inefficient power plants, reducing the energy sector’s self-consumption, and physically shortening the distance between where electricity is generated and where it is consumed.
While self-consumption does not solve every problem – battery storage introduces its own efficiency losses, and local grids require substantial investment in automation – a well-designed decentralized system dramatically reduces the volume of energy that must be transmitted, converted, and ultimately wasted just to keep the system running.
What Needs to Change?
- Establish a Public Monitoring System: Poland needs a transparent, public system to track self-consumption. Knowing the number of micro-installations and their grid-feed-in rates is no longer enough; we need concrete data on local consumption.
- Integrate Local Flexibility into Planning: Energy forecasting must account for local balancing and flexibility, leveraging battery storage, heat pumps, EVs, dynamic tariffs, demand-side management, and energy communities.
- Incentivize Smart Use, Not Just Generation: Support schemes should reward the smart, localized utilization of power rather than the mere installation of capacity. Funding more kilowatts of solar without integrating storage or load management risks exacerbating grid congestion rather than solving it.
- Empower Local Governments as Grid Balancers: Municipalities, schools, water treatment plants, public transit networks, and municipal buildings are ideal candidates for local balancing. Many public services operate primarily during the day—making offices, schools, and daycare centers natural consumers for on-site solar power generated during peak daylight hours.
Ultimately, self-consumption is neither a passing trend nor a technical niche for hobbyists. It is a vital pillar of the future power grid. Its role will only grow as solar, storage, heat pumps, electromobility, and digitalization continue to converge.
The most critical shift we need to make is not technological, but mental. We can no longer plan the energy transition solely by counting new gigawatts of central generation. We must also plan for the energy we won’t need to transmit, the energy the grid won’t waste on its own operations, and the energy that will be used exactly where it was born.
This “invisible” energy may well prove to be one of Poland’s most valuable assets in the energy transition.
We expect the Ministry of Energy, Polskie Sieci Energetyczne (PSE), the Energy Market Agency (ARE), and state research institutes to deliver detailed, scenario-based forecasts on the growth of electricity self-consumption up to 2050, and its projected impact on the National Power Grid.