What WattBuy does

WattBuy (legally WattB, Inc.) is a US clean energy data platform founded in 2017 that operates a dual-sided marketplace connecting residential electricity consumers with retail energy suppliers and solar installers across all 50 states. Its consumer-facing web application enables address-based search for personalized electricity plan and solar recommendations, powered by a proprietary energy estimation model that aggregates utility rates, usage patterns, and offerings from more than 20 supplier partners including NextEra Energy, Constellation, Gexa Energy, Frontier Utilities, Chariot Energy, Verde Energy USA, Energy Harbor, and Just Energy. The platform has facilitated over $4 million in consumer savings and 20 GWh of renewable energy generation since launch.

The company's B2B offering, the Personalized Power Portal, exposes these capabilities through an API-first architecture that enables enterprise partners to embed white-label energy insights — including carbon footprint data, electricity usage analytics, utility rate comparisons, and an integrated marketplace of energy solutions (retail plans, renewable energy credits, rooftop and community solar, and home energy devices) — into their own products. Notable enterprise partners include Redfin (energy cost estimates on listings), SmartThings (smart home energy dashboard), Updater (moving and relocation services), and EnergySage (solar marketplace). WattBuy also offers SunnyAI, an always-on conversational solar advisor chatbot, plus utility tools such as ESI ID lookup for Texas deregulated markets.

WattBuy monetizes primarily through referral commissions from energy suppliers when consumers enroll through the platform, supplemented by enterprise API/platform licensing fees. The company is backed by Techstars, holds official US Department of Energy accreditation, and won first place in the DOE's Apps for Energy competition. As of August 2025, WattBuy was acquired by Schneider Electric S.E. (ENXTPA: SU), a global energy management and automation operator, ending its independent operating status. Prior to the acquisition, WattBuy had raised approximately $16.6 million across four funding rounds between 2018 and 2021, with the most recent round ($11.2M Series A2) led by SE Ventures, the Schneider Electric venture arm.

Name

WattBuy

Legal name

WattB, Inc.

Website

https://wattbuy.com

Company type

Private

Founded year

2017

Operating status

Acquired

Headcount range

11–50 employees

Short description

WattBuy is a US clean energy data platform helping homeowners compare and switch electricity plans and solar providers via address-based personalized recommendations, while offering enterprise partners a white-label API for embedded energy insights; acquired by Schneider Electric in August 2025.

Ownership category

akta.pro rank

Product category

Energy Comparison and Clean Energy Data Platform

NAICS

Utilities (22)

SIC

Electric Services (4911)

akta.pro primary industry

Customer Energy Engagement (In-Home Displays, Portals, Usage Insights) (EUADAFAH)

akta.pro secondary industry

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

Keywords

• Energy comparison platform
• Electricity plan marketplace
• Clean energy data API
• Residential solar marketplace
• Utility rate comparison

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Energy Supplier Referral Commissions: WattBuy acts as an intermediary connecting consumers with retail electricity suppliers and solar providers. The company earns referral fees or commissions from energy providers when users enroll in plans through the WattBuy platform. This is the primary revenue mechanism; consumers do not pay WattBuy directly for using the comparison and enrollment service.
2. Enterprise API/Platform Licensing: Enterprise partners (real estate platforms, IoT companies, financial services) pay for access to WattBuy's Personalized Power Portal API. Partners embed white-label energy insights, carbon footprint data, and energy marketplace functionality into their own products to engage consumers with energy solutions, generating revenue through API access fees or volume-based pricing.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

WattBuy operates a clean energy platform with two surfaces: a free consumer web application that uses a proprietary address-based energy estimation model to recommend personalized electricity plans, renewable energy plans, and solar installations from 20+ partner suppliers across 50 US states, and the Personalized Power Portal — an API-first B2B platform that enables enterprise partners (real estate, IoT/smart home, moving services, financial services) to embed white-label carbon footprint, electricity usage, utility rate data, and an energy solutions marketplace into their own products.

Product overview

WattBuy operates a dual-marketplace model combining a consumer-facing energy comparison platform with a B2B API platform called the Personalized Power Portal. The consumer platform helps homeowners search and switch to electricity plans and solar installations across 50 US states, using a proprietary energy estimation model that provides personalized recommendations based on user address. The B2B platform enables enterprise partners (including Redfin, SmartThings, Updater, and Energy Sage) to embed WattBuy's energy insights, including carbon footprint analysis, electricity usage data, utility rate information, and an integrated marketplace of energy solutions, into their own products via API. WattBuy monetizes through referral fees from energy suppliers and API/platform partnerships.

Differentiator

Problem solved

Functional benefit

Brands

• Personalized Power Portal: An enterprise platform that delivers carbon footprint and electricity usage insights, utility rate data, and a marketplace of energy solutions through APIs.

Products and services

• WattBuy Consumer Platform Free consumer-facing web application that uses an address-based proprietary energy estimation model to recommend personalized electricity plans, renewable energy plans, and solar installations from 20+ partner suppliers across 50 US states. Target users are residential homeowners and renters in deregulated energy markets looking to lower bills or switch to cleaner energy.
• Personalized Power Portal (Enterprise API / White-Label Platform) API-first B2B platform that delivers carbon footprint insights, electricity usage data, utility rate information, and a marketplace of energy solutions (retail energy plans, renewable energy credits, rooftop and community solar, home energy devices) for enterprise partners such as Redfin, SmartThings, Updater, and EnergySage to embed into their own products under a 'Powered by WattBuy' white-label.
• Go Solar Solar installation referral service that connects homeowners with vetted solar installers, offering personalized quotes and an advertised average savings figure, monetized through referral commissions to solar providers.

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability4 records

Feature3 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Schneider Electric S.E.coreStrategic or Co-development Partner · 21 August 2025Schneider Electric S.E. (ENXTPA: SU) acquired WattB, Inc. as reported by Market Screener. This represents a significant strategic acquisition by Schneider Electric, a global leader in energy management and automation, of WattBuy's energy data and consumer platform capabilities.
• RedfincoreGTM or Marketing PartnerRedfin integrated WattBuy's energy cost estimates into real estate listing information, helping homebuyers understand electricity costs for properties. This partnership represents embedded distribution for WattBuy through a major real estate platform reaching millions of home buyers.
• SmartThingscoreTechnology or IntegrationSmartThings integrated WattBuy's Personalized Power Portal into its smart home platform, providing consumers with energy insights and electricity marketplace access through their smart home ecosystem.
• UpdaterminorGTM or Marketing PartnerUpdater integrated WattBuy's energy solutions as part of its moving and relocation platform, reaching consumers during the home-moving transition when energy decisions are top-of-mind.
• EnergySageminorGTM or Marketing PartnerEnergySage partnered with WattBuy to cross-promote energy solutions across solar and electricity comparison marketplaces.
• SunrunminorChannel Partner/ Reseller/ DistributorSolar installation provider featured as a trusted partner on WattBuy's platform, offering rooftop solar installation services to WattBuy consumers.
• NextEra Energy ServicesminorChannel Partner/ Reseller/ DistributorNextEra Energy Services is featured as an electricity supplier partner on WattBuy's marketplace, offering residential electricity plans across multiple US states.
• Constellation EnergyminorChannel Partner/ Reseller/ DistributorConstellation Energy (Nasdaq: CEG), a Fortune 200 company and nation's largest producer of emissions-free energy, is featured as an electricity supplier partner on WattBuy's marketplace.
• Gexa EnergyminorChannel Partner/ Reseller/ DistributorGexa Energy, a subsidiary of NextEra Energy Resources and A+ BBB-rated provider headquartered in Houston, TX, is featured as an electricity supplier partner.
• Frontier UtilitiesminorChannel Partner/ Reseller/ DistributorFrontier Utilities is featured as a trusted electricity supplier partner serving deregulated markets in Texas, New Jersey, Pennsylvania, Ohio, and Illinois.
• Chariot EnergyminorChannel Partner/ Reseller/ DistributorChariot Energy, a Texas-based residential electricity provider offering 100% renewable energy plans and solar panel manufacturing, is featured as a partner.
• Verde Energy USAminorChannel Partner/ Reseller/ DistributorVerde Energy USA serves over 250,000 residential and business customers offering 100% renewable energy at competitive fixed rates. Featured as a supplier partner on WattBuy's marketplace.
• Energy HarborminorChannel Partner/ Reseller/ DistributorEnergy Harbor, headquartered in Akron, Ohio and serving nearly one million residential, commercial, and industrial customers, is featured as an electricity supplier partner.
• Just EnergyminorChannel Partner/ Reseller/ DistributorJust Energy, one of the nation's largest energy networks servicing Texas clients under Amigo Energy, Tara Energy, and Just Energy brands, is featured as a supplier partner.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• EnergySage: Largest US solar and clean energy marketplace, connecting homeowners with vetted installers and providers via a quote-and-compare flow. WattBuy already partners with EnergySage, and the two operate overlapping solar/electricity marketplaces to the same homeowner segment.
• Choose Energy: Long-standing US electricity comparison marketplace focused on deregulated states, monetized via supplier referral commissions — the same deregulated-market, affiliate-referral model WattBuy runs on wattbuy.com.
• SaveOnEnergy: Electricity and gas rate comparison platform serving residential consumers in deregulated US markets. Directly comparable business model (address-based search, supplier referral commissions) and overlapping target audience with WattBuy's consumer platform.
• Arcadia: Clean energy marketplace and utility data platform offering community solar, RECs, and bill-management tools to households. Directly comparable to WattBuy's consumer marketplace plus data layer thesis, with similar competitive positioning around climate-forward switching.
• Solar.com: National solar marketplace connecting homeowners to vetted installers through an online comparison flow with personalized quotes. Operates the same solar-install referral model WattBuy runs through its Go Solar portal and partner installer network.
• Pick My Solar: Online solar marketplace offering instant quotes and installer matching in deregulated US markets. Directly comparable solar referral and comparison model in the same homeowner segment as WattBuy's Go Solar product.
• SolarReviews: Solar comparison and review platform helping consumers evaluate installers with side-by-side quotes. Overlaps with WattBuy's solar marketplace and SunnyAI advisor, and competes for the same solar-shopping consumer.

Emerging players

• Optiwatt: Energy management and demand response platform with smart home device integration (formerly OhmConnect). Adjacent thesis to WattBuy's consumer energy engagement + IoT integration angle, with overlapping SmartThings/EV/smart-home distribution paths.

Broad incumbents

• Schneider Electric: Global energy management and automation company and WattBuy's acquirer (August 2025). Its Wiser residential and EcoStruxure platforms overlap with WattBuy's household energy engagement scope but serve a much broader industrial, commercial, and residential portfolio.

Others

• Google Project Sunroof: Google's address-based solar estimation tool that maps rooftop solar potential and surfaces installer leads. Directly competes with WattBuy's address-based energy estimation and solar recommendation capabilities, though without a complete switching marketplace layer.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds4 records

Investors12 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about WattBuy