Signing a PPA is a major milestone. But for the energy, sustainability, and finance teams who inherit it afterward, the real work is just getting started.
We sat down with corporate energy buyers to ask a simple question: what's actually difficult about managing a PPA once it's operational?
The same handful of frustrations came up again and again, regardless of how many contracts were on the books. Below are the top five challenges — and how LevelTen’s Performance Monitoring addresses each.
1. Every PPA is a little different, and the differences add up
Portfolios aren't made up of identical contracts. Price floors and escalators, tailored settlement terms, upside-sharing provisions, and an array of other clauses make standardized tracking a pain — if not outright impossible. The more a portfolio grows, the more these differences compound into complexity that no single spreadsheet can keep up with.
LevelTen’s Performance Monitoring is built to intake and normalize these differences. It's designed to represent a portfolio as it actually exists — for two PPAs or fifty — so contract complexity doesn't turn into a maintenance burden each time a new deal closes.
2. Every developer sends invoices differently
This one comes up in every conversation. There's no standard PPA invoice format across developers — timestamp conventions, timezone handling, Daylight Saving treatment, and how settlements are displayed all vary. For a buyer with even a handful of PPAs, this means reconciling divergent formats just to answer a simple question: "How is my portfolio doing?"
This isn't a data problem so much as a normalization problem: the information is all there, it just doesn't speak the same language from one invoice to the next.
LevelTen’s Performance Monitoring normalizes invoice data from disparate formats into a single, consistent view, so a portfolio built from disparate sources can still be read like it came from one.
3. Auditing invoices for errors means knowing what to look for
Most buyers assume their invoices are broadly correct, and typically, they are. But the errors that do show up are often subtle enough to miss: a month with 31 days of generation instead of 30, solar output logged during non-solar hours, generation that exceeds a project's stated capacity, data gaps, or incorrect market prices provide just a few examples. Catching invoice errors takes knowing the context and patterns, not just checking the numbers.
Performance Monitoring is built by PPA experts with decades of combined experience who are attuned to catching exactly these kinds of errors across a large volume of real invoices. LevelTen's Performance Monitoring was designed from the ground up to flag these errors automatically, allowing buyers to avoid manual line-by-line review while still trusting critical errors will be caught.
4. A dashboard tells you what happened. It doesn't tell you why.
A chart can show that generation dropped last month. It can't tell a sustainability lead or CFO why — whether caused by a weather event, curtailment, a market anomaly, or something worth escalating. This information gap matters most when the pressure is on and internal stakeholders are looking for an explanation.
This is where data alone tends to fall short, and where direct access to people who track the market for a living makes a real difference. Performance Monitoring pairs portfolio data with access to LevelTen's renewable energy analysts, so buyers aren't left interpreting data without the context needed to tell the full story.
5. Mark-to-market reporting adds real financial pressure
For VPPA offtakers reporting under IFRS 9, fair value measurement isn't optional — it's required every reporting period, and it can introduce real volatility into reported earnings.
Many sustainability and energy teams sign these contracts before their accounting counterparts have fully mapped out the impacts of this IFRS treatment, and the first mark-to-market cycle can be a genuine surprise. Getting it right consistently requires forward curves that auditors will actually accept as a basis for valuation, and a documented methodology that holds up quarter over quarter.
Performance Monitoring provides access to forecasts on market-standard curves and keeps methodologies consistent and auditable across reporting periods, so buyers walk into each cycle with numbers they can defend.
Build it in-house, or pay for an external solution?
For many teams, this decision comes first. Before questions around invoice formats or forecast curves arise, they need to determine whether an internally engineered portfolio-monitoring tool is worth the time, investment, and trade-offs.
Being pulled initially toward building in-house makes sense: just gather invoice data, connect a forward curve, and build a dashboard, right? In practice, the list of to-dos is longer than it looks. Settlement-interval invoice data must be normalized contract by contract. Market pricing and forward curve feeds need to be sourced and kept current. Settlement logic needs to reflect the actual mechanics of each PPA — price floors, escalators, mixed structures. And invoice auditing — catching the kind of errors that are easy to miss and costly to leave unresolved — brings unique logic that takes years to refine..
Teams who go down this road often find the real cost isn't the initial build, but rather the maintenance required every time a curve updates, a developer changes their invoice format, or a new PPA joins the portfolio with its own set of invoice norms, settlement mechanics, and contract terms. An in-house build can often monitor a single PPA just fine. But as PPA portfolios grow and complexity mounts, needs can quickly scale well beyond the tool's capabilities.
A decade of PPA tracking experience at your fingertips
LevelTen’s Performancing Monitoring is built on decades of combined PPA experiences helping clients track and monitor PPA contracts. We know that challenges like those discussed above can compound fast when a team’s portfolio outpaces the tools at their disposal. Performance Monitoring has evolved to address these issues and more, turning invoice-validated actuals and market-standard forecasts into credible reporting for energy, sustainability, and finance teams.
If any of these challenges sound familiar, it's worth taking a closer look at how Performance Monitoring works. Or, reach out to our team to learn more by filling out the form below.
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