> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nectarclimate.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Energy Star

> EPA Energy Star Portfolio Manager integration for building energy benchmarking.

<Tip>
  Need help in this area? See [Data Export FAQ](/platform/data-export/faq).
</Tip>

The Energy Star integration connects Nectar to EPA's Energy Star Portfolio Manager (ESPM). Nectar aggregates meter data by site and syncs it to ESPM as monthly consumption per utility type.

## Portfolio hub

Navigate to [**Data Export > Integrations > Energy Star**](https://dash.nectarclimate.com/data-export/integrations/energy-star) to access the portfolio hub. The page includes:

* **Metrics summary** — Year-over-year comparison of synced properties and consumption
* **Tabs** — Sync & Download, Properties, History, Discrepancies

### Sync & Download tab

Run exports to push data to ESPM. Configure utility type, date range, sites, and whether to include flagged bills. A progress dialog shows sync status; on success, data appears in ESPM. Export history is listed below the form.

### Properties tab

A table of all Nectar sites linked to ESPM properties. Each row shows property name, address, sync status, last synced date, and discrepancy count. Click a row to open the property detail page.

### History tab

Past sync and export runs with status, date, and download links. Filter by status or date range.

### Discrepancies tab

Compare Nectar data against ESPM to find mismatches. Use the **Table** or **Grid** view:

* **Table view** — Rows per site and month with Nectar usage, ESPM usage, difference, and status. Filter by year, utility type, status, or site.
* **Grid view** — Site × month matrix with color-coded cells. Click a cell to see details and run Sync or Push.

Statuses: **Synced**, **Discrepancy** (values differ), **Missing in ESPM** (needs push), **Missing in Nectar** (data in ESPM but not Nectar).

## Property detail page

Click a property in the Properties tab to open the detail page. It includes:

* **Property header** — View on ESPM, Sync now, actions dropdown
* **Building details** — Address, property type, floor area, year built (from ESPM)
* **Commodity tabs** (Electricity, Natural Gas) — Monthly comparison table (Nectar vs ESPM), usage chart, contributing meters, contributing bills

Expand a month row to see the bills that contributed to that month's Nectar total. Use **Sync** or **Push** to resolve discrepancies.

## FAQ

<AccordionGroup>
  <Accordion title="How does Nectar map to ESPM?">
    Each Nectar site with `externalId` set to an ESPM property ID is treated as that property. All meters under the site are aggregated by utility type and synced as a single ESPM meter per commodity.
  </Accordion>

  <Accordion title="What is the difference between Push and Sync?">
    **Push** sends data that does not yet exist on ESPM. **Sync** updates data that already exists on ESPM but differs from Nectar. Use Push for missing months; use Sync to correct discrepancies.
  </Accordion>

  <Accordion title="Can I sync multiple properties at once?">
    Yes. From the Sync tab, select the date range and sites. The sync runs for all selected properties. From the Discrepancies tab, you can select multiple rows and run a bulk sync.
  </Accordion>

  <Accordion title="Why must I choose a utility type on the property detail page?">
    The property view compares Nectar against ESPM for one commodity at a time (for example electricity
    vs. natural gas). Pick the **utility type** and **date range** in the toolbar so charts and tables
    load the correct units and ESPM comparison for that commodity.
  </Accordion>

  <Accordion title="What if charts on property detail stay empty?">
    Confirm you selected both a utility type and a complete date range. If filters look correct but data
    is still missing, verify the site is linked to an ESPM property and that bills exist for that
    period in [Data Inventory](/platform/data-inventory/overview). Email
    [support@nectarclimate.com](mailto:support@nectarclimate.com) with the property and month if the
    issue persists.
  </Accordion>

  <Accordion title="How does this relate to the portfolio Sync & Download tab?">
    **Sync & Download** pushes aggregated data from the portfolio hub. **Property detail** is for
    drilling into a single linked property, comparing months, and resolving discrepancies with **Push**
    or **Sync** actions on that page.
  </Accordion>
</AccordionGroup>