EnergyCAP: Utility bill, interval data and carbon software for large building portfolios

Overview

EnergyCAP has sold utility bill software since the 1980s, and it still sits closer to the finance office than most energy management software. Its core product, Utility Management, is a system of record for utility bills: it captures and audits each bill, allocates costs to departments and tenants, exports approved bills to the accounting system and reports consumption, cost and emissions from the same data. Its customers are organisations with many buildings and utility accounts: state and local government, universities, school districts, hospitals, and commercial and industrial portfolios.

Around that core EnergyCAP sells add-ons and services. Interval Data analyses meter readings between bills. Emissions calculates Scope 1, 2 and 3 greenhouse gas emissions. Bill Capture and Bill Pay are managed services in which EnergyCAP staff and software collect, enter and pay bills for the customer. Watts AI, released in 2026, adds natural-language questions, report building and alerts over the customer's own data.

EnergyCAP says more than 750 organisations use the platform and that together they track more than $100 billion of utility bill value a year (September 2026). Its strength is an audited bill record with accounting workflows around it; meter-level analytics arrived in 2022, when it bought the Dublin analytics company Wattics. It sells software and services only, and makes no meters, gateways or on-site controllers, so interval data comes from third-party metering or from the utility.

Offering

Utility Management

Utility Management is the base product that every customer buys. It stores bills for electricity, gas, water and other commodities against accounts, meters and buildings, and flags bills that fail audit checks for errors and anomalies. Around the bill record sit budgets, accruals, cost avoidance calculations, weather-normalised benchmarking, energy use intensity tracking, chargebacks and tenant rebilling by submeter, split or formula, and a report designer. A direct link to ENERGY STAR Portfolio Manager submits building data and pulls scores back.

Interval Data

Interval Data, formerly SmartAnalytics and built on the Wattics platform, takes readings from meters, submeters and building systems. It flags use and demand anomalies against a modelled baseline, draws heatmaps, normalises for weather and calculates savings from energy conservation measures to the IPMVP measurement and verification method.

Emissions

Emissions, launched in 2023 as Carbon Hub, converts utility and meter data into Scope 1 and 2 emissions using eGRID or custom factors, with location-based and market-based methods, and accepts activity and supplier data for Scope 3. EnergyCAP describes it as aligned with the GHG Protocol.

Bill Capture and Bill Pay

Bill Capture is a managed service: EnergyCAP retrieves bills from utilities, extracts the data from PDF bills with software and human review, and chases missing bills. Bill Pay, added in 2025, pays approved bills electronically or by cheque through EnergyCAP's payment partners and produces accounts payable files for Oracle NetSuite, SAP, Microsoft Dynamics 365, Workday and Sage Intacct.

Watts AI

Watts Chat answers plain-language questions about a customer's bills, meters and costs. Insights, announced in September 2026, adds Watts Reports, Watts Alerts and a Signals dashboard that ranks issues by impact.

How it is sold

EnergyCAP sells subscriptions priced per meter per year, starting with Utility Management and adding Interval Data, Emissions, accounting and chargeback features. Implementation, training and the bill services are sold alongside. Prices are not published.

Technology

EnergyCAP is multi-tenant cloud software built on Microsoft Azure platform services. Customers are hosted in one of four production environments: US East, US West, the EU (North Europe, Ireland) and a separate FedRAMP environment for US federal agencies and contractors. Organisations can also reach their environment through a branded alias address.

APIs

The EnergyCAP REST API uses JSON over HTTPS. Requests carry an API key in an ECI-ApiKey header; keys, and webhooks, are created inside the application by a user with the right permission. The API covers meters, bills, accounts, cost centres and readings, supports paging and field reduction, returns HTTP 429 when a rate limit is reached, and is versioned separately from the application (for example v3 and v202407). EnergyCAP publishes SDKs for C#, Python and Angular/TypeScript, and supports single sign-on through ADFS or Azure AD.

How meter data gets in

Interval readings arrive in several documented ways:

• HTTPS push. The data push API inherited from Wattics accepts one JSON object per meter and timestamp at a collector endpoint, authenticated with HTTP Basic credentials, with a partial-update variant and a call that returns the last packet received. Each data point is registered with a transmission interval, and data sent less often than registered shows as gaps.
• Files. CSV files through an open-source uploader, scheduled FTP transfers, Green Button XML and interval imports keyed on a meter or channel import ID.
• Named integrations. The device support page lists Accuenergy AcuRev 2100 and Acuvim L meters, the AcuLink 810 with an Obvius AcquiSuite, Carlo Gavazzi VMU-C, Schneider Electric Com'X, eGauge, Smappee, Wattsense, Wattwatchers Auditor and Siemens Desigo CC.

EnergyCAP does not document MQTT, Modbus or BACnet collection of its own; field protocols are handled by the third-party gateway that pushes the data. Bills arrive by EDI 810, PDF, spreadsheet import, the API or Bill Capture.

Security

EnergyCAP holds a SOC 2 Type II report, most recently audited in April 2024, and a FedRAMP Low authorisation dated 7 December 2020, with the US Department of State granting the first authorisation to operate (announcement). Traffic uses TLS 1.2 or later, backups are kept for up to 90 days, releases are scanned with Qualys, and an outside firm runs penetration tests. The application stores little personal data beyond user email addresses and encrypted passwords (security overview). No ISO 27001 certificate is published.

Customers

EnergyCAP publishes named case studies, mostly from US public bodies, universities and hospitals. The outcomes below are the figures those case studies report.

• Miami-Dade County brought 24 county departments and more than 1,500 facilities onto one system to process about 54,000 electricity bills a year, and expected savings of nearly $2 million a year, about 2% of its electricity spend.
• Indiana University processes bills and chargebacks for eight campuses from one office in Bloomington. Audit flags caught three meter and billing errors that returned more than $416,000 in credits over seven months.
• University of California San Diego has used EnergyCAP since 2018. It imports about 1,000 vendor bills a month by EDI or PDF and generates about 1,500 internal chargebacks a month.
• University of Texas Medical Branch tracks more than 350 utility meters and over 100 submeters. During the August 2023 price spikes on the ERCOT market, its interval data showed the spikes usually began around midday, and the university moved setbacks for non-critical buildings to 1 p.m. to cut use during those hours.
• University of New Mexico collects interval data for more than 160 utility accounts through nightly FTP transfers and reports Scope 1 and 2 emissions from the Emissions module.
• Royal Mail, with about 1,400 sites in the UK, uses EnergyCAP for real-time dashboards, site audits and measurement and verification. One LED project at the Southport Delivery Office cut electricity use by 60%, with a payback of 2.5 years.
• AFL, the fibre optic manufacturer, automated nearly 200 utility accounts from December 2023 and reported $304,000 of anticipated annual savings.
• Coral Gables, Florida feeds EnergyCAP data through the API into the city's digital twin, and Baptist Health South Florida implemented EnergyCAP in February 2024, after a competitive tender, for more than 700 accounts and 900 meters.

Speakers at the 2026 customer conference included NASA Kennedy Space Center, Miami-Dade County and the University of Arizona. In 2009 the company named Penn State University, the University of California system and the states of Georgia, Tennessee and Maryland among its users (Keystone Edge).

Markets

EnergyCAP's market is mainly the United States. Its industry pages cover government, higher education, K-12 school districts, healthcare, commercial campuses, hotels, grocery, retail, manufacturing and automotive manufacturing, plus utilities that want to give their customers building data. Buyers are usually an energy manager, a sustainability lead or the finance office, and the product is built to serve all three from one set of data.

Federal and state government is a distinct segment. EnergyCAP has held a US General Services Administration contract since 2015 and a FedRAMP Low authorisation since December 2020; the FedRAMP Marketplace lists four agency authorisations to operate or use it. Its ENERGY STAR Portfolio Manager link is aimed at state and local building benchmarking mandates. The US Environmental Protection Agency credits EnergyCAP with benchmarking more than 16,000 properties in Portfolio Manager in 2023, and EnergyCAP says it has been an ENERGY STAR Partner of the Year six times, most recently in 2024.

Outside North America, the 2022 purchase of Wattics added an office in Dublin and a footprint that EnergyCAP put at more than 55 countries. EnergyCAP runs an EU hosting region in Ireland, processes bills in several languages and reports them in a single currency, and its largest published European customer is Royal Mail. Its published case studies are otherwise almost entirely American.

EnergyCAP holds an annual customer conference, Catalyst, which reached its 20th year in Orlando in September 2026. Analyst recognition includes a Major Player placing in the 2024 IDC MarketScape for worldwide carbon accounting and management applications.

Company

Steve Heinz founded the business in 1980 as OmniComp, and its first product, FASER Energy Accounting, is what EnergyCAP now dates its software to (1982). Enron bought OmniComp and moved it to Houston. After Enron's collapse in 2001, Heinz bought the business back in the bankruptcy court and returned it to State College, Pennsylvania, in 2002 as Good Steward Software, which by 2009 sold EnergyCAP to institutions and GreenQuest to households (Keystone Edge, 2009). The company later took its product's name as EnergyCAP, Inc.

In March 2021 the Atlanta private equity firm Resurgens Technology Partners made a strategic investment in EnergyCAP, with terms undisclosed; the company has since traded as EnergyCAP, LLC. Resurgens' announcement put the user base at more than 2,100 organisations; EnergyCAP's 2026 announcements give more than 750. In August 2022 EnergyCAP bought Wattics, a Dublin energy analytics company founded in 2011 by Antonio Ruzzelli, whose platform became SmartAnalytics and then Interval Data. Carbon Hub followed in 2023, Bill Pay in 2025 and Watts AI in 2026.

Heinz was chief executive at the time of the Resurgens investment and remains on the board. Tom Patterson was chief executive by the time of the Wattics purchase and until mid-2024. Shawn Lankton, an electrical engineer with a PhD from Georgia Tech and a former leader in McKinsey's software practice, became chief executive in August 2024. Fred Sturgis, a managing director at Resurgens, chairs the board. The rest of the leadership team includes Chris Carney (technology), Dan Flanigan (product), Tucker Johnson (finance), Trey Simonton (sales), Erika Brookes (marketing) and Dan Behringer (customers).

The headquarters is at 360 Discovery Drive, Boalsburg, Pennsylvania, near State College, with offices in Greenwood Village, Colorado, and Dublin 8, Ireland. LinkedIn lists the company as privately held with 51 to 200 employees, 124 of them on LinkedIn in September 2026.