Regulating Curtailment
Curtailing and compensating RES can be cheaper than taking up 100% of RES electricity through investment into conventional plant park or transmission.
Renewable Energy in Ukraine
Further RES expansion is needed to replace the ageing power plant fleet and to sustain energy security. To account for a higher variability in the system, different instruments can be utilized.
RES quotas for 2020 – 2024
Different sets of RES quotas are analyzed. In the best-case scenario, 3 GW wind & solar are built and RES quotas set at 1.6 GW, enabling a RES share above 20% in 2025.
Curtailment of renewable electricity as a flexibility option
Curtailment should be considered as a regular flexibility option. It helps to mitigate the green-coal paradox and to reduce system emisions from 94 to 40 Mt CO2.
Aspects of RES-support in Ukraine
The Ukrainian electricity system can absorb fluctuations of higher RES shares and support a further expansion with RES auctions.
Limiting the cost of feed-in-tariff subsidies
The rising cost of RE support pushes electricity prices beyond affordable level in Ukraine. Yet the revision of the established FIT scheme should be carefully designed and consider potential risks.
The Benefits of RES Curtailment in Ukraine
Analysis of curtailment as a flexibility option in the short and long run, including mitigation of the ‘green-coal paradox’ and comparison with hardware solutions. Overview of curtailment experiences across the world.
RES auctions in Ukraine Quota Sizing
25% of electricity generation can come from Renewables in 2035 when annually installing around 500MW, what seems realistically as of today.
Local curtailment charges for RES
The concentration of wind and solar plants in high-yield regions increases balancing needs and grid constraints. We recommend introducing a transparent curtailment charge mechanism.
The Draft Law on Renewable Energy Sources
Recommendations: Dynamically adjusting FIT based on project duration. Incentives for a smart & grid-friendly location selection. FIT reduction in 2019 to contain costs.
Stabilizing the support for renewables
Ukraine is about to adopt changes to the RE support law and introduce auction-based remuneration scheme. But is it not too late? Will the conservative changes to FIT help to contain the expensive boom?
Exploiting benefits of small solar and biogas
Small renewables projects can have important side benefits. Well targeted feed-in tariffs can support a cost-efficient deployment.
Balancing of fluctuating renewable power sources
Based on a LCU’s Optimised Dispatch Model (ODM), we assess that the current Ukrainian power system can balance fluctuations of up to 15 GW of wind and solar (in-depth analysis).
Location selection and wind solar mix
Wind and solar installations should be distributed over the country. Policy should strive for an optimal mix of wind and solar installations in order to reduce system cost.
Balancing Renewables in Ukraine
Based on a LCU’s Optimised Dispatch Model (ODM), we assess that the current Ukrainian power system can balance fluctuations of up to 15 GW of wind and solar (overview of results).