6 Best Energy Storage and Battery PR Agencies in 2027

The best energy storage and battery PR agencies combine documented storage client work with careful handling of safety, supply chain and performance claims. This guide names six firms, led by Virgo PR, which publishes the list and has not cited a named storage client result here. The order is an editorial choice, not an independent score. Each firm's evidence is attributed to the source that published it.

Disclosure: Virgo PR publishes this guide and appears in it. The selection is not an award, a sponsored ranking or an audited league table. Last reviewed November 5, 2026.

Contents

• What makes a good energy storage PR agency?

• How do the six agencies compare?

• How was the list chosen?

• Who are the six agencies?

• How should a storage company choose?

• What claims should a battery company be careful with?

• What does energy storage PR cost?

• Which related Virgo PR guides help?

• Frequently asked questions

What makes a good energy storage PR agency?

A good energy storage PR agency can explain battery chemistry, grid use cases and project economics to different audiences without overstating performance. Storage news reaches utilities, developers, investors, trade reporters, regulators and communities near installations. The agency should understand how safety questions are raised, which trade outlets matter for each segment and how to describe cost and lifetime figures so they can be checked.

Some firms below are clean energy specialists. Others are broader technology or financial agencies with storage clients. The evidence for each is stated plainly, and nothing here assumes fees, retainers or contract terms.

How do the six agencies compare?

RankAgencyBest forEvidence level

1Virgo PRClaims discipline and funding communicationsPublished battery PR analysis (no named storage client result cited) 2Antenna GroupGrid-scale and residential storage leadershipPublished Eos Energy and Sunrun case studies (agency-reported) 3HotwireStorage plus public affairs for industrial brandsPublished Eaton case study (agency-reported) 4PAN CommunicationsUtility-scale and microgrid storage brandsPowin Energy engagement report 5Mercom CapitalStorage companies seeking trade and investor reachCase studies including Highview Power 6Warner CommunicationsIndustrial battery systems makersAgency-of-record announcement for Lithos Energy

How was the list chosen?

The editorial framework weighed energy storage relevance, named client evidence, knowledge of trade and business media, claims awareness, published outcomes and commercial transparency. These are evaluation priorities, not computed scores. Public materials are uneven, so each entry says what kind of evidence stands behind it. Appointments are not results, and results reported by agencies are attributed to them and were not independently audited.

Who are the six agencies?

1. Virgo PR

Best for: storage and battery companies that need defensible claims and funding communications.

Virgo PR has not published a named energy storage client case study, so this placement rests on its practice focus and published analysis, not client results. Its work includes a review of how battery recycling companies answered skeptical audiences and guidance on climate claims. Read the battery recycling PR cases, the cleantech PR agency page and the analysis of greenwashing cases. Ask who would review technical claims on a storage account.

2. Antenna Group

Best for: companies that want to establish leadership in grid-scale or distributed storage.

Antenna Group published a case study saying it helped Eos Energy establish itself as a leader in grid-scale energy storage and build awareness of its Znyth battery technology, using media relations, messaging, media training and thought leadership. A listing of the case study names outlets including Bloomberg, Reuters, CNET, Greentech Media and TechCrunch. A second case study describes serving as public relations agency of record for Sunrun as it expanded its reputation in energy storage and distributed power plants. Both are agency-reported. Sources: Antenna Eos case study and Antenna Sunrun case study.

3. Hotwire

Best for: industrial brands entering energy storage who also need policy visibility.

Hotwire's Eaton case study says the agency activated business and consumer interest in energy storage, built a profile for Eaton with policymakers and secured more than 65 coverage hits. The figure is agency-reported, and coverage counts do not show sales. Source: Hotwire Eaton case study.

4. PAN Communications

Best for: battery energy storage systems for utility, commercial and microgrid use.

PAN Communications was reported to have signed on with Powin Energy, which designs battery energy storage systems for utility-scale, commercial and industrial and microgrid applications, to amplify its presence and authority in clean energy. An appointment is not a result, so ask for outcomes. Source: O'Dwyer's report on PAN and Powin.

5. Mercom Capital

Best for: storage companies that want trade media and investor audiences together.

Mercom Capital published case studies on energy storage clients. One says it was asked to serve as Highview Power's official agency of record and take over its global communications. Another describes work for a battery management software company that it says gained traction with utilities, independent power producers and project developers. These are agency-reported. Source: Mercom Highview Power case study.

6. Warner Communications

Best for: manufacturers of industrial and specialty battery systems.

Warner Communications was named agency of record for Lithos Energy, a maker of lithium-ion battery systems for automotive, marine, energy storage, defense, mining and other demanding uses, in September 2023. Confirm the current scope. Source: Warner and Lithos announcement.

How should an energy storage company choose a PR agency?

• Segment knowledge. Residential, commercial, utility-scale and long-duration storage each have different buyers and outlets.

• Safety readiness. Ask how the agency prepares a company for questions about fires, recalls or siting.

• Numbers discipline. Ask how it checks capacity, efficiency, cost and lifetime figures before release.

• Named comparable work. Look for storage clients at your stage and request references you can call.

• Contract and staffing. Confirm senior ownership, reporting, minimum term and regional coverage.

What claims should a battery company be careful with?

A battery company should be careful with cost, lifetime, safety and recycling claims, because buyers and reporters can test each one. A few habits reduce risk:

• State conditions. Say the temperature, duty cycle and test method behind any performance figure.

• Separate pilots from production. Be clear about whether a number comes from a lab, a pilot site or a commercial fleet.

• Be precise on safety. Describe certifications and testing exactly, and avoid absolute words such as "fireproof".

• Label future plans. Describe capacity targets and factory timelines as targets.

• Support green claims. Link to the method for any carbon or recycling figure.

Virgo's analysis of battery recycling PR cases shows how companies facing skeptical audiences answered with checkable facts, and the cleantech PR campaigns comparison covers climate technology more broadly.

What does energy storage PR cost?

This review did not verify comparable public retainers for storage PR, so no price ranges are stated. Fees depend on geography, team seniority, the number of announcements and whether investor or public affairs work is included. Ask each finalist for a written statement of work covering fees, third-party costs, staffing and cancellation terms.

Which related Virgo PR guides help?

• Best cleantech and climate tech PR agencies for the wider climate market.

• Battery recycling PR cases for answering skeptics.

• Greenwashing PR cases for claims regulators challenged.

• Best boutique PR agencies for startups for early-stage companies.

Frequently asked questions

What does an energy storage PR agency do?

It helps storage and battery companies explain technology, projects and funding to trade media, investors, utilities and communities.

How is storage PR different from general cleantech PR?

Storage stories involve safety, supply chains and detailed performance figures, so accuracy and sourcing need extra care.

Do battery startups need a specialist agency?

Not always. Compare segment knowledge, senior attention and trade relationships rather than the label.

Can PR help with safety concerns?

PR can help a company explain testing and respond clearly to questions, but it cannot replace safe design or honest disclosure.

Can PR guarantee coverage?

No. Journalists decide what to publish, so agencies can improve the odds but not promise results.

How should storage PR be measured?

Track relevant trade and business coverage, accuracy of reported figures, stakeholder engagement and agreed milestones.

Editorial disclosure and research notes

Virgo PR publishes this guide and appears in it based on its practice focus, not a cited client result. Agency results and appointments are attributed to their publishers and were not audited. Entries 4 and 6 rest on appointment announcements and should be checked with each agency before hiring. Research assembled November 5, 2026.