How much does a MWh system cost?

MWh (Megawatt-hour) is a measure of energy capacity (how long the system can continue delivering that power output). For example, a 1 MW / 4 MWh BESS has four hours of storage capacity.So, while the system might be $200,000 per MW, the effective cost can be $800,000 per MWh if it has four hours duration.

Are battery storage costs based on long-term planning models?

Battery storage costs have evolved rapidly over the past several years, necessitating an update to storage cost projections used in long-term planning models and other activities. This work documents the development of these projections, which are based on recent publications of storage costs.

How do you convert kWh costs to kW costs?

The $/kWh costs we report can be converted to $/kW costs simply by multiplying by the duration (e.g., a $300/kWh, 4-hour battery would have a power capacity cost of $1200/kW). To develop cost projections, storage costs were normalized to their 2022 value such that each projection started with a value of 1 in 2022.

What are the costs of energy generation?

These expenses may include water consumption, waste and wastewater discharge, chemicals such as selective catalytic reduction ammonia, and consumables including lubricants and calibration gas. Because these costs are generation dependent, the values are levelized by the cost per unit of energy generation and presented in $/MWh.

How many hours in a 200 MW battery system?

Batteries are typically sized by their output in kWh and not by their capacity in MW, which is defined by the AC capacity of the battery’s inverters. The 200 MWh battery system in this estimate is comprised of four hours of 50 MW output.

What is a 50 MW (net) geothermal power plant?

This case is a 50 MW (net) geothermal power plant accessing a hydrothermal reservoir to generate power via a binary cycle. Geothermal power can be generated either from hydrothermal reservoirs or an enhanced geothermal system (EGS). Hydrothermal reservoirs are underground reservoirs of high temperature, pressurized water.