Voltus, Resideo, and Google Nest to Launch First Bring-Your-Own-Thermostat Program That Delivers Grid Support During Unplanned Power Plant Outages and Periods of Peak Demand

PPL Electric Customers with Resideo's Honeywell Home Thermostats or Google Nest Thermostats Can Earn New Incentives

Voltus, Inc. ("Voltus"), the leading distributed energy resource (DER) software technology platform, together with Resideo (NYSE:REZI), a leading global provider of home comfort and security solutions and a distributed energy resource management system (DERMS), and Google Nest, today announced the launch of the first bring-your-own-thermostat program that will deliver both demand response capacity and ancillary services value to PJM Interconnection, the nation's largest electric grid operator. The program is now available to select customers of PPL Electric Utilities in Pennsylvania.

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"Resideo is an active participant in decarbonizing the electric grid and our Connected Savings Program sets a new standard in balancing comfort with energy efficiency," said Phil Theodore, President of Products & Solutions at Resideo. "Together with other industry leaders, we are helping create a more sustainable future by utilizing our market-leading smart thermostat portfolio integrations and demand response technology to help reduce the impact to the environment."

In addition to participating in its Connected Savings Program, each of Resideo's Honeywell Home thermostat customers has the option to fund the planting of fifty native trees in Pennsylvania's Chesapeake Bay watershed. These streamside forested buffers can help control erosion, restore water quality, protect the local environment and improve air quality.

"We're thrilled to be working with industry leaders Resideo and Google to demonstrate that residential customers can reliably support grid stability in both ancillary services and capacity markets," said Dana Guernsey, Voltus Chief Product Officer and Co-founder. "Today, smart thermostats typically only deliver value during the hottest afternoons of the year when AC usage is at its peak. The Voltus platform can dispatch DERs at a moment's notice, which is required to deliver operating reserves to address sudden, unexpected grid supply constraints, like traditional power plants unexpectedly being unavailable. There are an estimated 34 million smart thermostats in the US, each capable of delivering about one kilowatt of controllable electricity demand, or 34,000 MW in total."

The Resideo Energy Management Platform manages more than one-quarter of a gigawatt of Demand Response (DR) capacity with another 12 GWh of optimized energy efficiency across the U.S. Resideo serves more than 25 of the nation's utility portfolios, providing DR, energy market, energy efficiency and behavioral services to major markets throughout the nation.

The Voltus software platform connects DERs to electricity markets, maximizing the availability of these resources to grid operators. Comprised of all DER asset types, from the smallest DERs (e.g. smart thermostats and other residential resources) to the largest DERs (e.g. manufacturing facilities, data centers, big box retail), Voltus is the only DER software platform participating in all nine U.S. and Canadian wholesale power markets.

About Resideo Energy Management

Resideo's Energy Management business offers peak demand reduction, automated energy efficiency, behavioral energy efficiency, and automated time of use for customers across the U.S. Resideo's energy-saving devices helped its customers save 1.2 Billion Kilowatt hours in 2020. Already working with major utilities across the nation, the company recently expanded to include additional distributed energy resources. For additional information, utilities can visit ConnectedSavings.com.

About Resideo

Resideo is a leading global manufacturer and distributor of technology-driven products and solutions that provide comfort, security, energy efficiency and control to customers worldwide. Building on a 130-year heritage, Resideo has a presence in more than 150 million homes, with 15 million systems installed in homes each year. We continue to serve more than 110,000 professionals through leading distributors, including our ADI Global Distribution business, which exports to more than 100 countries from nearly 200 stocking locations around the world. For more information about Resideo, please visit www.resideo.com.

The Honeywell Home trademark is used under a long-term license to Resideo from Honeywell International Inc.

About Voltus

Voltus is the leading software technology platform connecting distributed energy resources to electricity markets, delivering less expensive, more reliable, and more sustainable electricity. Our commercial and industrial customers and DER partners generate cash by allowing Voltus to maximize the value of their flexible load, distributed generation, energy storage, energy efficiency, and electric vehicle resources in these markets. To learn more, visit www.voltus.co.

On November 30, 2021, Broadscale Acquisition Corp. ("Broadscale") (NASDAQ:SCLE) entered into a definitive agreement for a business combination with Voltus. The combined company is expected to be listed on the Nasdaq upon completion of the transaction. The transaction is expected to occur in the second quarter of 2022 and is subject to approval by Broadscale's stockholders, the registration statement being declared effective by the SEC, and other customary closing conditions.

Forward-Looking Statements

This press release contains certain "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended, including certain financial forecasts and projections. All statements other than statements of historical fact contained in this press release, including statements as to future results of operations and financial position, revenue and other metrics, planned products and services, business strategy and plans, objectives of management for future operations of Voltus market size and growth opportunities, competitive position and technological and market trends, are forward-looking statements. Some of these forward-looking statements can be identified by the use of forward-looking words, including "may," "should," "expect," "intend," "will," "estimate," "anticipate," "believe," "predict," "plan," "targets," "projects," "could," "would," "continue," "forecast" or the negatives of these terms or variations of them or similar expressions. All forward-looking statements are subject to risks, uncertainties, and other factors which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. All forward-looking statements are based upon estimates, forecasts and assumptions that, while considered reasonable by Broadscale and its management, and Voltus and its management, as the case may be, are inherently uncertain and many factors may cause the actual results to differ materially from current expectations which include, but are not limited to: 1) the occurrence of any event, change or other circumstance that could give rise to the termination of the definitive merger agreement with respect to the business combination; 2) the outcome of any legal proceedings that may be instituted against Voltus, Broadscale, the combined company or others following the announcement of the business combination and any definitive agreements with respect thereto; 3) the inability to complete the business combination due to the failure to obtain approval of the stockholders of Broadscale or Voltus, or to satisfy other conditions to closing the business combination; 4) changes to the proposed structure of the business combination that may be required or appropriate as a result of applicable laws or regulations or as a condition to obtaining regulatory approval of the business combination; 5) the ability to meet Nasdaq's listing standards following the consummation of the business combination; 6) the risk that the business combination disrupts current plans and operations of Voltus as a result of the announcement and consummation of the business combination; 7) the inability to recognize the anticipated benefits of the business combination, which may be affected by, among other things, competition, the ability of the combined company to grow and manage growth profitably, maintain relationships with customers and suppliers and retain its management and key employees; 8) costs related to the business combination; 9) changes in applicable laws or regulations; 10) the possibility that Voltus or the combined company may be adversely affected by other economic, business and/or competitive factors; 11) Voltus's estimates of its financial performance; 12) the risk that the business combination may not be completed in a timely manner or at all, which may adversely affect the price of Broadscale's securities; 13) the risk that the transaction may not be completed by Broadscale's business combination deadline and the potential failure to obtain an extension of the business combination deadline if sought by Broadscale; 14) the impact of the novel coronavirus disease pandemic, including any mutations or variants thereof, and its effect on business and financial conditions; 15) inability to complete the PIPE investment in connection with the business combination; and 16) other risks and uncertainties set forth in the sections entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements" in Broadscale's registration statement on Form S-4 (File No. 333-262287), filed with the SEC on January 21, 2022 and as amended by Amendment No. 1 filed on March 18, 2022 (collectively, the "Registration Statement"), and other documents filed by Broadscale from time to time with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Nothing in this press release should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward looking statements will be achieved. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made. Neither Broadscale nor Voltus gives any assurance that either Broadscale or Voltus or the combined company will achieve its expected results. Neither Broadscale nor Voltus undertakes any duty to update these forward-looking statements, except as otherwise required by law.

Use of Projections

This press release may contain financial forecasts of Voltus. Neither Voltus's independent auditors, nor the independent registered public accounting firm of Broadscale, audited, reviewed, compiled or performed any procedures with respect to the projections for the purpose of their inclusion in this press release, and accordingly, neither of them expressed an opinion or provided any other form of assurance with respect thereto for the purpose of this press release. These projections should not be relied upon as being necessarily indicative of future results. The projected financial information contained in this press release constitutes forward-looking information. The assumptions and estimates underlying such projected financial information are inherently uncertain and are subject to a wide variety of significant business, economic, competitive and other risks and uncertainties that could cause actual results to differ materially from those contained in the prospective financial information. See "Forward-Looking Statements" above. Actual results may differ materially from the results contemplated by the projected financial information contained in this press release, and the inclusion of such information in this press release should not be regarded as a representation by any person that the results reflected in such projections will be achieved.

Additional Information and Where to Find It

In connection with the proposed transaction, Broadscale has filed with the U.S. Securities and Exchange Commission the Registration Statement, which included a preliminary proxy statement and a preliminary prospectus. After the Registration Statement has been declared effective, Broadscale will mail a definitive proxy statement /prospectus relating to the proposed transaction to its stockholders as of the record date established for voting on the proposed transactions. Broadscale's stockholders and other interested persons are urged to carefully read the Registration Statement, including the preliminary proxy statement / preliminary prospectus, and any amendments thereto, and, when available, the definitive proxy statement/prospectus and other documents filed in connection with the proposed transaction, as these materials contain, or will contain, important information about the proposed transaction and the parties to the proposed transaction.

Broadscale's stockholders and other interested persons will be able to obtain free copies of the Registration Statement, the preliminary proxy statement / preliminary prospectus, the definitive proxy statement/prospectus and all other relevant documents filed or that will be filed with the SEC, without charge, when available, at the website maintained by the SEC at www.sec.gov.

The documents filed by Broadscale with the SEC also may be obtained free of charge at Broadscale's website at https://www.broadscalespac.com or upon written request to 1845 Walnut Street, Suite 1111, Philadelphia, PA 19103.

NEITHER THE SEC NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE TRANSACTIONS DESCRIBED IN THIS PRESS RELEASE, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION OR RELATED TRANSACTIONS OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THIS PRESS RELEASE. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

Participants in the Solicitation

Broadscale and Voltus and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from Broadscale's stockholders in connection with the proposed transactions. Broadscale's stockholders and other interested persons may obtain, without charge, more detailed information regarding the directors and executive officers of Broadscale listed in the Registration Statement. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies from Broadscale's stockholders in connection with the proposed business combination is set forth in the Registration Statement.

No Offer or Solicitation

This press release is not intended to and does not constitute an offer to sell or the solicitation of an offer to buy, sell or solicit any securities or any proxy, vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be deemed to be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

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