And What Inaccurate WIP Reporting Can Cost Your Firm
A construction work-in-progress (WIP) schedule is only as accurate as the operational schedule it is built on. When a grid interconnection milestone slips—a growing bottleneck for data center construction—cost-to-complete figures tied to that milestone can quickly fall out of alignment. That reporting gap can begin even earlier, when long-lead equipment is purchased before the project budget, committed costs, and reporting baseline are fully established. Percent-complete calculations may overstate earned revenue, and financial reports issued before the delay is reflected may show a project status that no longer matches actual field conditions.
For CFOs, COOs, and controllers at general contractors running data center programs, the gap between actual field progress and month-end financial reporting is not theoretical. It is a real threat to a clean, reliable close.
Why Grid Interconnection Delays Break Construction WIP Reporting
Under the percent-complete method, dependable WIP reporting relies on a single baseline assumption: that project milestones are stable enough to measure earned revenue against. Grid interconnection timelines have made that assumption harder to defend.
- Extended Timelines: Interconnection timelines have stretched significantly, with many projects now spending several years in the queue before reaching operation.
- Surging Backlogs: Meanwhile, active grid connection requests have grown dramatically over the past decade, adding pressure to project schedules and power-delivery assumptions.
When a power milestone shifts by six months, your job cost reporting is compromised as soon as that delay becomes part of the project plan. That risk becomes even harder to manage when committed costs are already missing from the reporting picture. Rebuilding a WIP schedule manually after a major delay is rarely simple. It can require days of administrative work—reconciling cost codes, updating cost-to-complete assumptions, and confirming that revised figures still align with billings and collections. On massive programs where power milestones shift every quarter, the accounting team can spend much of the close cycle simply rebuilding spreadsheets before the next disruption hits.
The Financial Control Gap Grows at Data Center Scale
MSI/MOCA’s Sizing the Surge 2025 identifies 2025–2026 as the peak U.S. data center projects window on record. The largest programs—ranging from 400 MW to over 1 GW—are moving through active construction right now.
- The Cost of Scale: WIP errors that are manageable on a standard $50M commercial project become material exposures at data center scale. On a $500M campus, a seemingly minor 2% WIP discrepancy from an untracked schedule slip translates to a $10 million margin miss. By the time that gap is finally uncovered, it is usually too late to recover the cash.
For COOs, the issue is not poor site execution, but that schedule certainty is being undermined by grid constraints the contractor does not control. When power delivery slips, even well-managed field teams are forced to rebuild the plan around a milestone they cannot accelerate.
What Inaccurate WIP Costs Beyond a Margin Miss
When your WIP reporting cannot keep pace with schedule changes, the damage can extend beyond a single margin miscalculation:
- Audit and Bonding Risks: Auditors may flag WIP schedules that fail to reconcile with current project conditions. In turn, bonding companies may tighten surety terms—precisely when your backlog is at its highest and capacity matters most.
- Cash Flow Strain: Cash forecasting also breaks down, as untracked interconnection slips can lead to unexpected credit-line draws or push the business closer to covenant thresholds.
- Lost Backlog: For firms chasing repeat hyperscaler contracts, the stakes are even higher. Owners managing multi-campus programs operate with increasing discipline around financial reporting, and GCs that cannot provide consistent, real-time cost visibility create friction in the relationship. A firm that loses a phase-two pursuit may lose it not because of its building capabilities, but because the owner lacks confidence in its financial reporting.
How Sage Intacct Construction Handles Power Milestone Disruptions
Many legacy construction accounting solutions, including systems such as Viewpoint Vista and Deltek ComputerEase, rely on manual workflows, exports, or disconnected field updates when major milestones shift. As a result, WIP reports can lag behind the actual schedule by days or weeks, leaving your firm exposed on volatile programs where the cost baseline moves with every grid-constraint change.
Keeping WIP accurate amid shifting power timelines requires a financial platform that can connect milestone changes to percent-complete and cost-to-complete updates. With the right project, milestone, and job-cost workflows in place, Sage Intacct Construction can help reduce manual spreadsheet rebuilds and keep reporting current as those milestones shift. A real-time milestone dashboard can connect power and equipment updates directly to live job costs. When an interconnection timeline slips, the financial impact on committed costs, cost-to-complete calculations, and cash exposure becomes visible sooner, rather than waiting for the next month-end review.
For CFOs who need portfolio-level visibility without waiting for a manual data export, the Sage Copilot Financial Intelligence Agent allows them to query the live ledger directly using natural language:
“What is our current cash exposure on interconnection-delayed programs?”
When job cost structures and project tags are configured to reflect schedule milestones, the system can return an answer sourced from live data—reducing reliance on exports, delayed reports, and manual reconciliation cycles.
Consider Cantiro, a developer managing phased campus programs, which reduced WIP report production from a week of manual effort to daily automated updates, giving finance more current visibility as project conditions changed. Similarly, C1S Group achieved complete field-to-office alignment by leveraging Sage Intacct’s certified native Procore connector. Because its project managers can track live commitments, job costs, and change orders directly from the field—spending 80% of their time in Procore and 20% in Intacct—both teams work from the same numbers without routing manual spreadsheets back and forth.
The Delayed Milestone Isn’t the Problem—the Blind Spot It Creates Is
Power delays are unlikely to be a short-term issue. The grid interconnection backlog, intense equipment lead times, and the pace of data center construction starts—which hit $77.7 billion in 2025, up 190% year-over-year—mean general contractors will continue managing schedule disruptions as a routine part of program delivery through at least 2026. For CFOs and controllers, the critical question is whether your financial reporting can absorb that disruption without breaking.
When your WIP process updates alongside schedule changes, your financial picture remains more accurate, defensible, and proactive. When it can’t, the gap between project reality and the ledger continues to grow until it surfaces as a margin miss, an audit finding, or a lost phase-two award.
SWK Technologies works directly with data center general contractors to protect WIP accuracy and maintain real-time job cost visibility when schedules shift. Schedule a conversation with the SWK team here to identify where power milestone disruptions may be creating reporting gaps before they affect your margins, cash flow, or backlog opportunities.