Our company has implemented a unique project. The problem that the client came to us with was that initially, according to the agreement with the local electricity supplier, a quota of 15 kilowatts was established for each house in the cottage town. Subsequently, the developer added some electrical equipment to each cottage and this was 20-30% greater than the capacity of the electrical cables and the main transformer. We conducted an engineering audit. As a result of observations, we saw that in some hours the consumption was below average, for example at night and during the day. In the morning and evening there was a peak load of electricity. The average daily use did not exceed the total limit, but due to morning and evening peaks, the substation protection was constantly tripped and the cottage community was left without electricity for an average of two hours a day, which negatively affected the image of the developer’s company and the sale of new cottages. Since it was financially unacceptable to change the substation and high-voltage supply line, we proposed a unique solution. In each cottage we installed our energy storage systems (on average 10 kilowatt/hour battery and 5 kilowatt inverter). The system charged during low demand at night and during the day and then provided additional power during peak demand in the morning and evening. Thus the problem was completely solved. Our client, a cottage community developer, was able to save 80% of the allocated budget to solve this problem thanks to our technologies and the proposed project. This system allows you to save up to 70% on energy costs.