Duaer

Get started

Solar power estimate in Duaer

In Duaer: NREL PVWatts: yearly and monthly electricity a rooftop solar system would make at a location. One successful search uses 1 credit.

What you get

Duaer Solar power estimate runs NREL PVWatts for a location and returns the yearly total first, then one row per month. Set the system size, tilt, and facing to match a roof. Duaer holds the upstream API key; you only send your Duaer key.

Pick Duaer Data → Solar power estimate in the node creator, or open the data market. Related: Solar and climate (NASA POWER), EV charging and fuel stations.

When to use it

  • Estimate how much a 6 kW roof system would make in Denver.
  • Compare summer and winter solar output.

When not to use it

Search on the canvas

  1. Open the node creator and pick Duaer Data → Solar power estimate.
  2. Fill Latitude and Longitude (such as 40.0 and -105.2). Optional: System Size (kW), Tilt, Azimuth.
  3. Limit defaults to 10, max 20. Execute.

A search uses 1 credit only when it returns rows. No rows, wrong input, or an upstream failure uses 0.

Call the API

  • GET https://api.duaer.com/v1/data/solar-estimate?latitude=40.0&longitude=-105.2
  • Authorization: Bearer <Duaer key>

The call skill below matches Copy skill in the Duaer data market, with parameters, examples, and result fields.

Call skill

Same text as Copy skill.

---
name: duaer-solar-estimate
description: >-
  Duaer Solar power estimate. NREL PVWatts: yearly and monthly electricity a rooftop solar system would make at a location.
  One successful search uses 1 Duaer credit.
---

# Duaer Solar power estimate

Duaer Solar power estimate runs NREL PVWatts for a location and returns the yearly total first, then one row per month. Set the system size, tilt, and facing to match a roof. Duaer holds the upstream API key; you only send your Duaer key.

## When to use

- Estimate how much a 6 kW roof system would make in Denver.
- Compare summer and winter solar output.

## When not to use

- Daily sunshine and weather history. Use https://skills.duaer.com/nasa-power.md.
- Sunrise and sunset times. Use https://skills.duaer.com/sunrise.md.

## Call

`GET https://api.duaer.com/v1/data/solar-estimate?latitude=40.0&longitude=-105.2`

Header: `Authorization: Bearer <Duaer key>`

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

## Parameters

Provide `latitude` and `longitude`.

- `latitude`, `longitude` — Decimal degrees, such as 40.0 and -105.2.
- `systemKw` — Optional. DC size in kW. Default 4.
- `tilt` — Optional. Panel tilt in degrees, 0 to 90. Default 20.
- `azimuth` — Optional. Compass direction the panels face; 180 is south. Default 180.
- `limit` — Optional. Rows to return, from 1 to 20. Default 10.

## Examples

- `GET https://api.duaer.com/v1/data/solar-estimate?latitude=40.0&longitude=-105.2` — a 4 kW system near Boulder.
- `GET https://api.duaer.com/v1/data/solar-estimate?latitude=33.45&longitude=-112.07&systemKw=6&tilt=30` — a 6 kW system in Phoenix.

## Result

The response is `{ "items": [...] }`. Each item has `source`, `title`, `url`, and `summary`, plus:

- `period` — `year` or a month name.
- `acKwh` — AC electricity in kWh.
- `sunKwhPerM2Day`, `capacityFactorPct` — sunshine on the panels and capacity factor.
- `systemKw`, `tilt`, `azimuth`, `weatherSite` — inputs used and the weather station.

Fields without a value are left out.

## Credits

A search that returns at least one row uses 1 credit.
An empty search, a search that finds nothing, or a failed search uses 0.
Wrong input returns 400 with a message and uses 0.
No remaining credits returns 402 and does not search.
A missing key returns 401.

## Related

- https://skills.duaer.com/nasa-power.md — Duaer Solar and climate (NASA POWER)
- https://skills.duaer.com/ev-stations.md — Duaer EV charging and fuel stations

Questions

How many credits does a Solar power estimate search use in Duaer?

One credit when Duaer returns rows. A search with no rows or an error uses 0.

Does Duaer Solar power estimate work outside the US?

PVWatts covers the US best and supports some other regions. weatherSite shows the weather data site used.

In this section

Get started

Solar and climate (NASA POWER) in Duaer

In Duaer: Daily or monthly solar radiation, temperature, rain, wind, and humidity for any point since 1981, from NASA POWER. One successful search uses 1 credit.

Get started

EV charging and fuel stations in Duaer

In Duaer: NREL Alternative Fuels Data Center: public EV chargers and hydrogen, CNG, and other fuel stations in the US. One successful search uses 1 credit.