Four platforms.
One grid-level advantage.
VIPER models the grid. The Firming Cost Analyzer models the portfolio. Together, they answer every question between “should we build it?” and “where should we interconnect?”
VIPER — Nodal Scenario Analysis
VIPER is a browser-based power system modeling platform built on a full production cost model of ERCOT at 187-county resolution. Add or remove generation, storage, or load at any bus — then see how LMPs, transmission flows, and constraint shadow prices respond in under 100 milliseconds.
Pre-computed PTDF sensitivities deliver results in milliseconds. Test dozens of scenarios in a single session.
County-level nodal model captures localized congestion, constraint patterns, and LMP dynamics that zonal models miss.
LMPs, generation dispatch, transmission utilization, constraint shadow prices, and binding hours — all in one view.
Screen any bus for sub-synchronous torsional interaction risk. UIF scores, flagged generators, and risk tiers per EPRI guidelines.
Place 200 MW solar at any of 187 county-level buses in ERCOT
PTDF engine resolves LMPs, flows, and constraints in under 100ms
See price suppression, congestion shifts, and constraint shadow prices
Firming Cost Analyzer
Upload your data center load profile and site-specific renewable generation data. The Firming Cost Analyzer dispatches BESS and gas backup optimally across 8,760 hours to reveal the true cost, carbon intensity, and hourly matching percentage of any clean energy portfolio — before you commit to the deal.
Upload actual site NCFs — not generic P50s. Scale nameplate MW up or down to find the optimal portfolio size.
The optimizer charges from excess renewables and discharges to cover gaps — minimizing gas firming and maximizing clean hours.
Natural gas firming dispatches only when renewables + BESS are fully depleted. See exactly how many hours and MWh require backup.
Bring your 8,760-hour load profile and site-specific renewable capacity factors
Set solar, wind, and BESS nameplate MW. Adjust gas cost and carbon assumptions
See hourly dispatch, blended $/MWh, carbon intensity, and clean match percentage
Lease & Derivative Accounting Engine
Dual-track accounting for energy assets. Handles ASC 842 lease classification (finance & operating), ASC 815 derivative mark-to-market with Day 1 zero-out, and mid-term remeasurement — all with journal entries ready for SAP or NetSuite export.
Finance & operating lease classification with ROU asset, lease liability, and full amortization schedules. Handles escalations and early termination.
Net present value with user-provided discount rates. Day 1 zero-out coefficient with volumetric or straight-line amortization.
Month-end journal entries with balanced debits and credits. Export to generic CSV, SAP format, or NetSuite format.
Set classification, asset type, payment schedule, and discount rate via the contract wizard
Engine computes lease liability, ROU asset, derivative MTM, and amortization schedules
Download month-end journal entries in generic, SAP, or NetSuite CSV format
Deal Evaluator
Evaluate energy deal economics across four deal structures — BTM, BTM + Interconnect, Utility Tariff, and Pure Tariff. The Deal Evaluator calculates all-in $/MWh with full component breakdowns, P50/P95 stress analysis, holding cost exposure, and phasing timelines. Compare 2-3 deals side by side to find the optimal structure.
Blended cost across energy charges, demand, T&D, PPA, credits, and holding costs — broken down by component.
Base and stress scenarios with configurable load, generation, price, and tariff multipliers. Know the risk range.
BTM, BTM+IC, Utility Tariff, and Pure Tariff — each with the right inputs revealed via progressive disclosure.
Choose BTM, BTM+IC, Utility Tariff, or Pure Tariff
Tariff rates, generation, PPA terms, load profile, phasing
8,760-hour engine with P50 base and P95 stress scenarios
Side-by-side $/MWh with component breakdowns
Utility Tariff Library
Access real utility tariffs from major data center markets. Browse, filter, and import tariff schedules directly into the Deal Evaluator — replacing 30+ minutes of manual configuration with a 10-second import of verified utility data.
Verified tariff schedules from Dominion Energy, Duke Energy Progress, and more — sourced directly from official filings.
Select state and tariff, click Load. Complete rate structures including energy, demand, riders, fuel, and fixed charges — instantly.
Imported tariffs flow directly into the Deal Evaluator. Customize any component or clear and start fresh.
Visit the dedicated library to search, filter, and explore tariff details. View all rate components before importing.
Select state and tariff directly inside the Deal Wizard. Load the complete tariff without leaving your deal configuration.
Help expand our tariff database
Don't see your utility in our library? Upload a tariff schedule document and our team will review it for potential inclusion. Help other users get access to accurate utility tariff data.
Suggest a Utility Tariff
Upload a tariff schedule and we'll consider adding it to our library
By uploading, you agree that we may review, process, and potentially publish this tariff in our public database. We'll only add legitimate, current utility tariff schedules.
Design the portfolio. See the grid impact.
The integration license connects both platforms into a single workflow. Design and optimize your clean energy portfolio in the Firming Cost Analyzer, then export it directly to a VIPER bus to see how it affects LMPs, transmission flows, and constraints at the actual interconnection point.
Upload NCFs, size renewables + BESS, optimize dispatch, confirm firming economics
Select any of 187 county-level interconnection points
LMP deltas, flow changes, constraint shadow prices, congestion relief at your bus
Size your clean energy portfolio
8,760-hour BESS + gas firming
Select interconnection bus
LMP deltas and flow changes
Expert consulting, model-backed
Every advisory engagement is grounded in our production cost model. Not opinions — outputs.
Energy Deal Evaluation
PPA structuring, asset valuation, and acquisition due diligence. We model the grid-level economics so you can price the deal with locational precision.
Economic & Capacity Planning
Resource adequacy modeling, capacity market strategy, and long-term supply planning grounded in production cost model outputs at county resolution.
Tariff & Rate Design
Cost-of-service studies, rate case support, and tariff benchmarking. Translate wholesale market dynamics into defensible retail rate structures.
Infrastructure & Automation
Custom analytics pipelines, automated reporting, and data integration for energy operations teams that move faster than their tools.