Nine Firm

How much IT load can your power actually carry?

Put gas, wind, solar, grid and batteries into one portfolio. Get the maximum supportable load, in reliability metrics your lenders and utilities already use.

Try it: a 6-unit gas siteIllustrative portfolio
3.9
nines of supply availability99.98%
Meets target.
Target:
Expected hours short per year (LOLH)
1.8 h
Max load at your target
230 MW

Snapshot demo using binomial unit outages (6% forced outage rate, 60 MW units). The full engine runs hourly Monte Carlo with weather-driven renewables.

A datacenter that never goes dark

Scroll through one day. The load stays at 240 MW while the sun sets and the wind drops.

Midday Solar and wind carry most of the load. Gas idles near its minimum and the battery charges.

What supplies the datacenter right now

Illustrative dispatch for a single day. Nine Firm simulates thousands of these days, with real outages and real weather.

Weather is the real uncertainty

Each column is one day and each row is one hour of the day. Solar follows the seasons. Wind follows nothing: it stalls for days, then returns. Nine Firm resamples whole weeks of weather so these lulls stay in every simulated year.

Solar outputOne synthetic year
No outputFull output
Wind outputSame year, same site
No outputFull output

Illustrative synthetic weather, generated in your browser. Hover a cell to read it. In the product, you load your own site data.

Run it until the answer stops moving

Most simulated years have no shortfall at all, and a few are bad. One year tells you almost nothing. Nine Firm runs thousands of years from independent random seeds, and keeps going until the estimate settles.

Years simulated
10
Loss of load hours (LOLH)
0.00 h/yr
95% interval
± 0.00
Precision target of ±5%
Still moving

Illustrative. Each thin line is an independent run of the same simulation. The bright line is the one the readout follows.

Four questions, one engine

Every analysis runs on the same simulation, so answers stay consistent when you change an assumption.

Evaluate a portfolioIs this enough?

Enter your thermal units, renewables, grid connection and battery. See availability, loss-of-load hours, expected unserved energy and loss-of-load events against your target.

Find max IT loadHow big can we build?

The tool searches for the largest IT load the portfolio supports at your reliability target, with uncertainty ranges from independent random seeds.

Compare grid scenariosWhat does the grid buy us?

Model the grid as an asset with its own outage statistics. Compare islanded, partial and full-grid cases side by side.

Size a least-cost portfolioWhat should we buy?

Dispatch is by energy cost, with true tolling economics: fee, variable O&M and fuel kept separate. Find the cheapest mix that clears the target.

See supportable load, quarter by quarter

  • Every resource has dates. Enter commercial operation as a date or year and quarter, plus a retirement date.
  • Phased builds. Multi-site renewables and unit-by-unit gas additions step the curve up.
  • Share the answer. Export a one-page PDF for clients or engineers.
0100 200300 400 2027 Q12028 Q12029 Q12030 Q1 MW Supportable load Contracted load ramp Unit 4 online

Built to survive a technical review

Your results will be questioned by engineers and lenders. The method is documented, the terminology is standard, and the engine is checked against known answers.

LOLHEUELOLEVSupply availability
Weather that behaves like weather
Weekly-block bootstrapping keeps seasonality and multi-day wind droughts intact.
Realistic outages and maintenance
Two-state Markov outages for gas, binomial counts for multi-unit plants, and explicit hour-based maintenance blocks.
Checked against known answers
Built-in validation compares the engine to exact analytical calculations and the published IEEE RTS-79 benchmark.
Defaults you can cite
Outage and cost starting points are drawn from NERC GADS, EIA, NREL ATB and PRAS, MISO and PJM data.
Traceable outputs
Every report carries an input fingerprint, and a version history lets you diff and restore earlier runs.

One tool for everyone at the table

Datacenter developers

Know how much capacity a site can commit to a tenant before you sign, and what it takes to raise it.

Power developers and IPPs

Show customers how your generation and storage perform as a combined, firm supply.

Lenders and investors

Get a defensible, repeatable reliability number with documented method and validation.

Consultants and engineers

Run scenarios in minutes, compare them, and hand clients a clean one-page report.

About Nine Firm

Nine Firm helps datacenter and power developers determine how much computing load their power infrastructure can reliably support.

Users model grid connections, gas generation, wind, solar, batteries, outages, maintenance, and project timelines. Nine Firm runs probabilistic reliability simulations to calculate supportable IT load, identify the lowest-cost portfolio that meets a target reliability level, and show how capacity changes as new resources enter or retire.

Results are reported using industry-standard reliability metrics including LOLH, EUE, LOLEV, and supply availability, with validation against analytical methods and IEEE reliability benchmarks.

The result is a defensible answer to a critical infrastructure question: How many megawatts of datacenter load can this power portfolio reliably serve?

Get early access

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