For the first time in Ukraine, a global innovation has been tested – the EcoFlow STREAM Ultra power supply system, which combines AI-optimized management, solar generation, and hybrid energy storage to power private homes, apartments, and businesses with a 10-year warranty. Each STREAM Ultra system is equipped with a durable LFP battery, which has an improved safety profile and guarantees 6,000 full cycles until the capacity reaches 70%. The IP65 protection rating allows the solution to be installed both indoors and outdoors. Quick and easy plug-and-play installation is another important advantage of EcoFlow STREAM systems, enabling users to minimize their use of centralized energy almost immediately.
The use of the system has already shown initial results – users have managed to significantly reduce their dependence on the centralized power grid by replacing it with solar energy, which has led to savings of more than 60% on their electricity bills while increasing their resilience to energy risks.
Case 1. Energy supply for small architectural forms amid rising tariffs
Small and medium-sized business owners in Ukraine face numerous daily challenges, including energy instability and continuously rising tariffs.
Challenge: A tariff of 12 UAH/kW for commercial properties in Kyiv, with an average monthly consumption of about 1,000 kW.
Solution: EcoFlow STREAM Ultra + 4 stationary solar panels (400 W each).
Testing period: 1 month in total (second half of June, first half of July).
Result:
– Only 550 kW was paid for — 6,600 UAH instead of 12,000 UAH, saving 5,400 UAH.
– The first generation from the sun was 6.5 kW, with a maximum of 9 kW/day.
– Projected payback period — up to 2 years.
Case 2. Solar energy to power apartments in high-rise buildings
Household consumers are also affected by unstable power supply and rising prices. In 2025, the cost of 1 kW of electricity will be 4.32 UAH/kW. Therefore, finding an alternative solution is a key concern for apartment dwellers. STREAM Ultra has been tested in two city apartments in Kyiv and Bucha.
Challenge: Unstable power supply with expected price increases.
Solution: EcoFlow STREAM Ultra + 2 stationary solar panels with a total capacity of 800 W, separately for each facility.
Testing period: 2 months (May - June).
Result:
The average electricity consumption in a Kyiv apartment with a single-zone meter is between 120 kW and 150 kW per month, depending on the season.
In May, solar generation provided up to 42% of the electricity consumed, and in June — 37% (due to increased electricity consumption). The results of the experiment were also influenced by the placement of the solar panels. In June, the Kyiv apartment consumed only 95 kW, which is equivalent to 410 UAH.
The average monthly electricity consumption of an apartment in Bucha, Kyiv region, with a two-zone meter ranges from 120 kW to 180 kW, with the monthly payment varying from 480 to 600 hryvnias.
During a month of operation, two STREAM Ultra systems generated up to 73 kW of free electricity from the sun, with only 46 kW needing to be taken from the grid to power household appliances. This means that over 60% of the energy supply came from the sun. As a result, the electricity bill for June amounted to only 170 hryvnias.
Case 3: Effectiveness of STREAM Ultra in a private home
For residents of private households, home solar energy systems (SES) are advantageous due to the simpler placement of solar panels in the most efficient locations and the ability to adjust the optimal tilt angle for maximum energy generation throughout the day.
Challenge: unstable power supply with expected price increases.
Solution: 2 EcoFlow STREAM Ultra systems and 4 stationary solar panels with a total capacity of 1600 W.
Testing period: 2 weeks (June).
Result:
Before testing the system, the average daily consumption in the house was 11.5 kW. During the two-week experiment, consumption decreased to 7.3 kW. Solar generation provided 54.5 kW of energy during this period. At current rates, the savings amounted to more than 35% in just half a month.
"When it comes to powering an apartment or house, it is important to understand that STREAM Ultra can function both as a portable charging station in case of power outages and as a general power supply system to reduce centralized consumption. At the same time, it costs less than traditional hybrid solar power stations, is mobile, and easy to install," noted Anatoliy Hutsul, a journalist for the 'Your Home' project.
Therefore, the EcoFlow STREAM Ultra energy independence system is an effective and stable solution for independent energy supply for apartments, houses, and businesses. By choosing a personalized operating scenario, it is possible not only to reduce electricity bills but also to eliminate them entirely in the future.
The use of solar energy is a proven path to energy independence, which is actively being implemented by leading European countries. Experience shows that decentralized power systems are the key to energy independence in an unstable market. Against the backdrop of constantly rising tariffs, investing in solar generation and intelligent energy supply systems is a practical solution with clearly predictable benefits. STREAM Ultra opens up opportunities to build your own energy strategy — flexible, scalable, and effective today.
