Commercial, Industrial & Utility
The power tariff for Commercial and Industrial units is typically highest among all consumers. This makes for a great value proposition for on-site installation of PV plants for captive consumption. There are two challenges associated with standalone PV plants. One is large C&I consumers have to schedule the day ahead power in Time blocks. The balance power is scheduled from other sources such as Grid or other captive sources. In case of deviation from the forecasted power the consumers either waste the previously scheduled power or have to pay higher tariff for unscheduled power from the Grid. The second limitation is inspite of PV plants providing a commercially viable alternative to Grid electricity the consumers are limited by the capacity of renewable plants they can install. Typically they size the plants to support their lowest weekly demand to avoid excess generation and wastage. For non-solar hours they still have to conventional source of power. The following section describes the role of Energy Storage in addressing these challenges and its economics.
The following is output from a multi MW scale PV plant for 15 days. The variability from an average generation is about ± 10%. This highlights the challenges of Scheduling of power based on forecasted Renewable output. With addition of Energy Storage one can schedule the power at the lower end of the generation and store the excess power generated. The same can be utilized to offset the energy requirement in the non-solar hrs thereby saving energy and cost.
The drop in Renewable electricity prices have made it a commercially viable solution for C&I customers. The addition of Energy Storage allows effective utilization of excess energy for usage during non-solar hrs. By using Delectrik’s Energy Storage solution you can increase the amount of renewable at your site and significantly decrease the amount of non-renewable electricity usage and also help accelerate your sustainability goals. Since the products life is on the same order as renewables and there is no impact on cycling.
Peak Load Management
The conventional generators are designed to provide constant power output ar high utilization factors. However, to match the variable demand Grid operators have to provide ancillary services which include spinning and non-spinning reserves, frequency control etc. Certain utilities have introduced Demand Side management strategies to incentivize customers for reduction in power demand during peak times or usage during non-peak hrs or penalizing in the form of demand charge. Addition of large-scale Energy Storage can be a very effective solution in stabilizing the gap between supply and demand since it can act both as an Energy source and sink. The duration of storage would vary across regions based on existing power profile and tariff structure. Energy Storage can be utilized effectively both the Utility or end C&I customers to manage their peak load demand.
Off Grid/Remote Area Electrification