U.S. Planned Wind Capacity, Next 12 Months (GW)

## What this measures

The nameplate capacity, in gigawatts, of planned onshore and offshore wind turbines generators that their owners expect to enter service in the 12 months after the report month, as listed on the Planned sheet of each monthly EIA-860M workbook. Each point is one workbook, dated to its report month, so the series shows how the near-term pipeline has moved over time.

## Why it matters

It is the most current public read of new power supply on the way, a year ahead of it arriving. For data centers waiting on grid connections, it shows whether generation is coming in time.

## How to read it

Higher means more capacity due within a year. Compare it with what actually came online a year later (energy.capacity_added_mw.us.wind): planned dates slip, and some projects are cancelled. Battery storage due in the next 12 months is energy.battery_storage.planned_12m_gw.us; months 13 to 24 are energy.capacity_planned_13_24m_gw.us.wind.

## What it does not say

It counts every generator on the Planned sheet whatever its stage, from planned but not yet under construction to built and testing, so not all of it will be built on time or at all. Units whose planned date has already passed without entering service are not counted. Nameplate capacity is rated maximum output, not generation. Puerto Rico is excluded.

## How it's built

For each monthly workbook, Palanor sums the nameplate capacity of every generator on the Planned sheet whose planned operation month falls 1 to 12 months after the report month. Fuel groups follow EIA's technology field: solar ("Solar Photovoltaic" and solar thermal), wind (onshore and offshore wind turbines), battery ("Batteries"), gas (every technology naming natural gas), nuclear, and other (everything else, including hydro, pumped storage, coal, oil, geothermal, biomass, waste and flywheels). Vintages from January 2019 were loaded from EIA's archive; each run adds the newest.

## Source

U.S. Energy Information Administration, Form EIA-860M, Preliminary Monthly Electric Generator Inventory (eia.gov/electricity/data/eia860m). Public domain. Refreshed weekly.