## 6 Conclusions  
Overall, it can be stated that the need and prospects for the development of renewable energy across the world are confirmed today by various stimulating legal and economic acts and laws, including those located in the area of creating differentiated power grid tariffs for consumers. \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multirow{3}{*}{**Category**} & \multirow{3}{*}{\begin{tabular}{c} **One-Rate** \\ **Tariff**, \\ **Rubbles/kWh** \\ \end{tabular} } & \multicolumn{3}{c}{\begin{tabular}{c} **One-Rate Tariff, Differentiated** \\ **Tariff**, **Rubbles/kWh** \\ \end{tabular} } \\  & \multirow{3}{*}{\begin{tabular}{c} **One-Rate** \\ **Tariff**, \\ **Rubbles/kWh** \\ \end{tabular} } & \multicolumn{3}{c}{\begin{tabular}{c} **One-Rate Tariff, Differentiated** \\ **by** **Three Zones of the Day,** \\ **Rubbles/kWh** \\ \end{tabular} } \\  & & \multicolumn{3}{c}{\begin{tabular}{c} **Day Zone** \\ **(Peak and** \\ **Half-Peak**) \\ \end{tabular} } & \multicolumn{3}{c}{\begin{tabular}{c} **Night** \\ **Zone** \\ \end{tabular} } & \multicolumn{3}{c}{\begin{tabular}{c} **Peak** \\ **Zone** \\ \end{tabular} } & \multicolumn{3}{c}{\
\begin{tabular}{c} **Half-Peak** \\ **Zone** \\ \end{tabular} } & \multicolumn{3}{c}{
\begin{tabular}{c} **Night** \\ **Zone** \\ \end{tabular} } \\ \hline for the amount of electricity consumed & 1.10 & 1.10 & 0.77 & 1.65 & 1.10 & 0.44 \\ up to 250 kWh per month & 1.44 & 1.44 & 1.01 & 2.16 & 1.44 & 0.58 \\ \hline for the amount of electricity consumed & 4.95 & 4.95 & 3.47 & 7.43 & 4.95 & 1.98 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Electricity tariffs in the Krasnodar region. \begin{table}
\begin{tabular}{l c c c} \hline \hline \multirow{3}{*}{**Types of Power Grid Tariffs**} & \multicolumn{3}{c}{\begin{tabular}{c} **The Cost of Electricity for Households, Rules/month** \\ **with Consumption only** \\ **from the Power Grid** \\ \end{tabular} } \\  & \begin{tabular}{c} **with Consumption only** \\ **from the Power Grid** \\ \end{tabular} & \
\begin{tabular}{c} **with Solar** \\ **Installations** \\ **Installations** \\ \end{tabular} &
\begin{tabular}{c} **with Solar Installations** \\ **and Storage** \\ \end{tabular} \\ \hline One-rate tariff & 204,496 & 106,756 & 88,515 \\ \hline One-rate tariff, differentiated by & 235,367 & 126,757 & 96,784 \\ two zones of the day & 221,299 & 118,334 & 90,327 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Comparison of the results of calculating the cost of electricity for households according to the current tariff menu and the proposed dynamic tariff differentiation. At the same time, as the conducted study showed, the applied system of state tariff differentiation often not only does not lead to the formation of economic incentives for optimizing electricity consumption when introducing power plants for renewable energy, but also turns out to be less beneficial for the consumer than simple one-rate tariffs. This is due to the fixed values of the transition to tariff zones at half-peak and peak rates, which do not correspond to the real daily consumption graph of the region's households. The situation is also aggravated by poorly justified differentiation of the tariff by the volume of energy consumed during the period. Analysis of the developed daily energy consumption graphs of households in the Krasnodar region on workdays and weekends showed that the rational use of solar power plants leads to a significant decrease in the amount of energy consumed from the power system in the half-peak zone of the load curve. At the same time, it is not possible to achieve a uniform distribution of the load on the power system during the day due to the use of autonomous solar installations. Energy consumption at peak hours is reduced, but the unevenness of the daily load graph remains.