3kwh energy storage battery profit

It varies according to the battery's chemistry; most 3 kWh batteries are lithium-based. Price also depends on the brand, manufacturing location, design, casing, resistance, cycle life, etc. With enough research, you'll find good quality 3 kWh batteries between $1200 to $2900.

A battery of 1kWh will deliver less than 1kWh throughout its lifetime. In many cases, cycling this battery daily for 10 years will not create 1 kWh * 365 days * 10 years = 3.65MWh of kWh throughput, but in many cases delivers less than 3.0MWh.

The storage NPV in terms of kWh has to factor in degradation, round-trip efficiency, lifetime, and all the non-ideal factors of the battery. The combination of these factors is simply the storage discount rate. The financial NPV in financial terms has to include the storage NPV, inflation, rising energy prices, and cost of debt.

992KWh delivered from a battery designed for 100KWh per year. Mapping from yearly to daily -> 100kWh / 365 = 0.274kWh nominal delivering 806kWh over 10 years. So from just this comparison, the blue battery delivers a substantial 86% more kWh over a 10-year timeframe.

The return of investment is an important metric about how attractive an investment may be. However this is an important note that energy storage usually does not generate electricity savings directly, but allows the transport or trading of electricity. This usually results in storage not having a high ROI like solar investments, for example.

In the worksheet Excel, a SuperTitan battery of €420/kWh is compared with a LFP battery of €300kWh using the above red/blue discount rates. For an electricity cost of €0.15/kWh and a timeframe of 10 years, the results are: SuperTitan battery NPV: +€25.79 LFP battery: -€6.87