Starting with hotels

The AI operating system for building energy.

Energy spend, supplier contracts, forecasts and workflows in one platform. AI agents find savings, coordinate suppliers and route every important decision to you.

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Pilot partner

Lobby of a Whitestone hotel

Live pilot

Piloting with Whitestone Capital across a portfolio of full-service and select-service hotels.

hotel rooms owned
hotel rooms owned
states
states
in total transactions
in total transactions
  • Renaissance Columbus Downtown

    Marriott family · Columbus, OH

  • The Westin Great Southern

    Marriott family · Columbus, OH

  • Sheraton Suites Columbus

    Marriott family · Columbus, OH

  • Le Méridien Atlanta Perimeter

    Marriott family · Atlanta, GA

  • Homewood Suites Cleveland-Solon

    Hilton family · Solon, OH

  • Hampton Inn Newark Airport

    Hilton family · Newark, NJ

  • Hilton Garden Inn Colorado Springs North

    Hilton family · Colorado Springs, CO

  • Hilton Garden Inn Wilkes-Barre

    Hilton family · Wilkes-Barre, PA

Whitestone portfolio figures

Founded by alumni of

  • Bank of America
  • Capital One
  • Stanford University
  • Cornell University
  • Path Robotics
  • Oliver Wyman
  • The Ohio State University

01 · The problem

Electricity is getting more expensive, and harder to predict.

Data centers and other energy-intensive industries are adding demand faster than the grid adds supply. Every commercial property owner is exposed, whether they operate buildings today or are planning the next one.

Average U.S. commercial electricity price, 2016–2025

+28% in a decade, and still climbing.

0¢5¢10¢15¢201620192022202510.43¢13.37¢
View data
Year¢ per kWh
201610.43
201710.66
201810.67
201910.68
202010.59
202111.22
202212.41
202312.59
202412.75
202513.37

Source: U.S. Energy Information Administration, annual averages in cents per kWh1

  • +5.6%1

    Commercial electricity prices so far in 2026 vs. the same months of 2025 (Jan–Aug, preliminary).

  • 4.4% → 12%2

    Data centers' share of U.S. electricity: 2023, vs. the top of DOE's 6.7–12% projection for 2028.

  • $333/MW-day3

    Record capacity price on PJM, the largest U.S. grid, for 2027/28. Forecast demand rose 5,250 MW, almost all from data centers.

  1. 1. U.S. Energy Information Administration, “Electric Power Monthly, Table 5.3: Average price of electricity to ultimate customers,” Oct 2026 (data through Aug 2026).
  2. 2. U.S. Department of Energy / Lawrence Berkeley National Laboratory, “DOE Releases New Report Evaluating Increase in Electricity Demand from Data Centers,” Dec 2024.
  3. 3. Utility Dive, “PJM capacity auction hits price cap as data centers drive demand forecast,” Dec 2025.

02 · The platform

Managing it is fragmented.

Owners rely on accountants, energy brokers, engineers and suppliers, each working in their own spreadsheets, inboxes and software. Nobody sees the whole picture, so savings slip and contracts renew on autopilot.

  • AccountantsSpreadsheets
  • Energy brokersEmail threads
  • EngineersBuilding systems
  • Suppliers & utilitiesPDF bills, portals

Rook

One place for energy.

Spend, contracts, forecasts and workflows, run by agents you supervise.

Rook brings it into one place.

  • Energy Spend

    Every utility bill, meter and rate in one place, with billing errors caught before they're paid.

  • Supplier Contracts

    Supply contracts, tariffs and broker quotes side by side, with renewals flagged early.

  • Financial Forecasts

    Energy budgets per property, and how exposed each one is when prices move.

  • Investment Simulation

    How retrofits, renovations and property changes affect long-term profitability.

  • AI Agents

    Agents that spot savings, coordinate suppliers and take repetitive work off your team.

  • Workflows & Approvals

    Everyone involved in one workflow, with every key decision routed to a person.

AI agents

Agents that do the legwork.

Rook's agents read every bill, contract and meter read, find savings, chase supplier quotes and prepare the paperwork. Every finding shows its math and the documents behind it.

  • Billing errors and rate mismatches flagged
  • Supplier quotes requested and compared
  • Repetitive reconciliation handled for your team
Rook · Agent activity

Demand charge billed above contract

Property C · September electric bill

Needs approval

($18.40 − $14.90) per kW × 612 kW

$2,142 overbilled

Utility bill, p. 2Supply contract §4.1Interval meter data

Next step: send a billing dispute to the utility once Finance approves.

  • Requested renewal quotes from 3 suppliersProperties A, B, D
  • Matched 46 utility bills to meter readsPortfolio
  • Drafted September variance note for accountingProperty F

Contracts & forecasts

Know what next year's energy will cost.

Every supply contract, rate and renewal date across the portfolio, with a forecast of what energy will cost each property.

  • Renewals flagged months ahead
  • Budgets that update as prices move
  • Exposure to variable and default rates, per property
Supplier contracts · Renewals
PropertySupplierRate / kWhEnds
Property ASupplier A9.8¢ fixedMar 2027Renews in 5 mo
Property BSupplier A10.1¢ fixedJun 2027
Property CUtility default14.6¢ variableNoneNo contract
Property DSupplier B9.4¢ indexJan 2028

2027 energy budget · portfolio forecast

$4.82M

+$310K if contracts renew at today's market rates

Exposure

Investment simulation

See the payback before you spend.

Model how an energy investment, a renovation or a change to the property affects its long-term profitability.

  • Capex, savings and payback in one view
  • Impact on NOI over the hold period
  • Scenarios compared side by side
Investment simulation · Property C
LED + HVAC controlsRooftop solarLaundry heat recovery

Capex

$420K

Annual savings

$96K

Payback

4.4 yrs

Cumulative cash impact, years 0–10

10-year NOI impact: +$540K

03 · How it works

From bill to verified savings.

Agents do the work. Your people make the calls. And nobody counts a saving before it shows up on a bill.

  1. 01

    Connect your data

    Forward utility bills, supply contracts and broker quotes, or connect meter and interval data.

  2. 02

    Agents find and coordinate

    Agents surface savings with the math and documents attached, chase supplier quotes and handle the busywork.

  3. 03

    You approve

    Each decision goes to the right person, showing what it affects, what it costs and whether it can be undone.

  4. 04

    The next bill verifies it

    A saving only counts once the next bill proves it.

Savings ledger · example portfolio

  • Potential

    $38,420

  • Approved

    $9,210

  • Verified

    $12,860

You stay in control of every decision.

  • Nothing is signed without you

    Agents never sign a contract, accept a quote or contact a supplier without approval.

  • Access by property

    GMs and engineers see their own building. Owners and finance see the portfolio.

  • A confirmation for every action

    Who signs, which properties it affects and whether it can be undone.

  • A full audit trail

    Every change, comment and decision is recorded with a name and a time.

Approve supply contract renewal?

Property
Property A
Supplier
Supplier A · 24 months
Rate
9.6¢/kWh fixed (from 9.8¢)
Signed by
Dana Ortiz · Finance
Reversible
Yes, until the supplier countersigns
CancelApprove

Audit trail

  1. Dana Ortiz approved the renewal

    Oct 21, 9:14 · Property A · Supplier A

  2. Sam Lee (engineering) commented

    Oct 21, 8:55 · Rate covers the summer peak

  3. Rook agent compared 3 supplier quotes

    Oct 20, 23:05 · Properties A, B, D

Early access

Turn energy into a coordinated, financially optimized operation.

We're starting with hotels and working with a small group of portfolios alongside our pilot. Tell us about yours.

  • A short call to learn about your portfolio
  • Early access as Rook opens up

We only use this to get in touch about Rook.