Microporous Starts Construction on $1.6 Billion Battery Separator Plant in Southside Virginia

Microporous has moved its long-discussed Southside Virginia battery component project out of the planning stage and into physical construction, giving Danville and Pittsylvania County a concrete industrial milestone rather than another future-tense megasite promise. Local officials said Friday that work has started on the company’s lithium-ion battery separator manufacturing facility at the Southern Virginia Megasite at Berry Hill, a project they now describe as a $1.6 billion investment expected to create more than 1,800 jobs with average annual wages of about $61,000.

That matters because Berry Hill has spent years being marketed as a large-scale advanced manufacturing site, but big economic development sites are often judged less by ribbon cuttings than by whether actual construction begins. According to the City of Danville’s economic development office, the Microporous project is now expected to take about 14 months to build, with completion targeted for the third quarter of 2027. The city and county also said Microporous becomes the first tenant at Berry Hill, which they describe as the largest megasite in Virginia and in the broader southeastern United States.

The timing gives the region a clearer line between financing and execution. Microporous said on April 30 that it had secured final funding for the Danville-area plant from Trent Capital Partners, Eagle Point Credit Management and Elda River Capital Management. At that point, the company said construction would begin imminently. Friday’s local announcement is the regional confirmation that the project has crossed that threshold. For a manufacturing investment of this scale, that distinction is important. A funded project can still stall on execution, permitting, contracting or market conditions. A project with construction underway carries a different level of commercial credibility for suppliers, contractors, lenders and workforce partners.

Microporous makes battery separators, the porous internal material that keeps battery electrodes apart while allowing ion flow. They are not the most publicly visible part of the electric-vehicle or energy-storage supply chain, but they are a necessary one. In its financing announcement, the company said the Virginia plant at full capacity is expected to support about 65 gigawatt-hours of annual lithium-ion battery production across automotive, industrial and grid applications. That figure is Microporous’ projection, not a completed output measure, but it helps explain why the project carries more regional weight than a standard factory expansion. It is designed to plug Southside Virginia into a supply-chain segment that U.S. manufacturers have been trying to localize more aggressively.

The regional angle is stronger than the usual economic development talking points. Danville and Pittsylvania County have spent years trying to convert a former tobacco-and-textiles footprint into an advanced manufacturing base that can attract battery, materials and infrastructure-related employers. Friday’s construction start does not prove that transformation is complete, but it does show the region has landed a first major tenant willing to move dirt and commit capital at scale. That is a more meaningful signal than a speculative site certification or a preliminary land sale because it creates visible activity, construction demand and a timetable the public can track.

It also gives local workforce institutions something concrete to build around. The city said the facility’s expected wage level is around $61,000 a year, and previous Microporous and state materials have framed the project as a source of skilled production and manufacturing jobs rather than low-wage warehouse work. If that hiring materializes anywhere near the current public target, the effects would extend beyond Microporous itself to training providers, housing demand, infrastructure planning and the case local officials make to the next industrial prospect considering Berry Hill.

There is still a need for careful wording, though. This is a construction-start story, not a production-start story, and not a completed hiring story. The public figures now attached to the project are “expected” outcomes, not audited results. The company has disclosed its financing backers and local officials have disclosed the construction timetable, but full operating details remain ahead. That means the story is strongest when framed as a verified milestone in a broader industrial buildout rather than as a finished economic win.

Independent follow-up coverage supports that view. WSLS reported Friday that Southside leaders marked the start of work on the facility and tied it to the same $1.6 billion investment and 1,800-job regional impact. ConstructConnect, citing the company’s April financing statement, separately described the project as moving from planning into construction after final funding was secured. Taken together with the city’s announcement, those sources provide a solid line from capital formation to site activity.

Why this matters

For Southside Virginia, the Microporous milestone is not just about one company. It is an early test of whether the region’s megasite strategy can translate public site preparation and incentive work into a live industrial cluster. Battery separators sit far enough upstream in the energy-storage supply chain that the plant could matter even if electric-vehicle demand remains uneven. Domestic battery manufacturing still depends on reliable local sources for critical inputs, and projects that reduce import dependence tend to attract attention from downstream manufacturers, infrastructure investors and state economic development teams looking for ecosystem effects rather than one-off wins.

The project also matters because it turns Berry Hill’s first-tenant story into a measurable one. Once steel goes up and contracts are let, regional leaders can start being judged against milestones instead of projections. That is healthier for readers and for the region’s business climate because it shifts the conversation from promotional language to evidence.

What to watch next

The most immediate checkpoints are whether construction stays on the city’s 14-month schedule and whether Microporous begins disclosing more detail on phased hiring, supplier activity and production timing as the build progresses. Any updates on site infrastructure, equipment installation or utility work will also matter because advanced battery-materials plants often live or die on execution details rather than headline announcements.

Editors should also watch whether Berry Hill starts drawing follow-on interest because Microporous is now physically under construction. If a first tenant can turn into a visible advanced-manufacturing node, local officials will have a stronger case that the site is no longer a speculative pitch. If the project slips materially on schedule or hiring, that would be just as important a regional signal. For now, the important verified fact is narrower but still substantial: one of Southside Virginia’s biggest industrial bets has moved from funded plan to active build.