SolarDisclosure™
Solar Performance Analytics
Sample report, private link

Solar Promise vs. Performance Report

What you were promised, what your system delivered, and what it is costing you

This is a sample of the report SolarDisclosure prepares for a homeowner who suspects the solar deal is not what was sold. It is built from twelve months of your electric bills before solar, every bill since, your inverter's production records, your contract, and your loan. The names and address below are fictional; the method and the numbers are exactly what you would receive.

Prepared forSample Homeowner (fictional)
14000 Sample Pine Lane, Conroe, TX 77384
ReportSD-FX-2026-0001 (sample)
Prepared 2026-10-14
Data window24 months of utility interval data
12 pre-install, 12 post-install, plus inverter production export
Prepared byJason Summers, SolarDisclosure
(385) 450-4509 · solardisclosure.io

The answer, in plain English

Before solar, this household paid an average of $322.92 a month for electricity. After solar, counting the loan payment, it pays $510.27 a month.

$187.35 more per month
$2,248more every year
$22,482more over 10 years
$56,205more over the 25-year loan

That is what this household pays on top of what it would have paid with no solar at all. The report traces every dollar of it to three causes:

  1. The rate plan you were switched to at signing credits the power you send to the grid at $0.03 per kilowatt-hour (kWh, the unit on your electric bill) while charging you $0.158 to buy it back after dark. Cost: $43.80 a month.
  2. The array produces 9,000 kWh a year, not the 18,500 kWh you were promised. Mature trees the installer did not map, and a design that clips output on a multi-facing roof. Cost: $95.22 a month.
  3. A dealer fee hidden in your loan raised the payment from the $240 quoted to $290. Cost: $50.00 a month, for 25 years, whether or not the panels work.

Each cause is proven separately below, so an attorney can plead them separately and a lender cannot blame the one it did not control.

Promised versus delivered

The sales proposal in one column, the measured result in the other. This table is the misrepresentation claim in its simplest form.

What the proposal saidPromisedMeasuredGap
Annual production18,500 kWh9,000 kWh9,500 kWh short (51%)
Monthly loan payment$240.00$290.00$50.00 more, $15,000 over the term
Rate plan at signing1:1 net metering at $0.15$0.158 to buy, $0.03 credit to sellExports credited at one-fifth of retail
Electric bill after solar (monthly average)$81.25$220.27$139.02 more
Total monthly cost with loan$321.25$510.27$189.02 more
Change versus the pre-solar bill ($322.92)$1.67 saved$187.35 lost$22,482.00 over ten years

"Promised" is the system the proposal described, on the plan the proposal assumed. "Measured" is the system as built, on the plan the customer was put on, with the loan as written.

The rest of this report compares three versions of the same house, using the same 25,000 kWh of yearly electricity use in all three. What you were promised is the system the proposal described. Same panels, wrong rate plan keeps the promised panels but puts them on the rate plan the customer was switched to, so you can see what the plan alone costs. What you actually got is the real system, the real plan and the real loan.

How much power you used, how much the panels made, and how much you still bought

Month by month: the electricity the house used, the electricity the panels made, and the electricity you still had to buy from the utility. "Bought from the grid" is every kilowatt-hour the panels did not cover (nights, cloudy hours, and every hour the array fell short). In "what you actually got" it dominates every month.

Electricity the house usedElectricity the panels madeBought from the utility

Where you stand after ten years

Running total of money saved or lost compared with your bills before solar, month by month for ten years, with rates held flat and the loan payment fixed. The shaded area under "what you actually got" is the money lost: $22,482 at ten years. That shaded area is what the law calls economic injury (in Texas, under the Deceptive Trade Practices Act, DTPA, the state consumer-protection law).

What you were promisedSame panels, wrong rate planWhat you actually got

How $322.92 a month became $510.27

From the bill before solar to the bill plus loan now, one cause at a time. "Wrong rate plan" is the cost of the plan switch alone. "Panels made half of what was promised" is the cost of the shortfall. "Hidden dealer fee" is the loan markup. The plan is applied first, the shortfall second, the fee last.

Step$ / monthRunning total

Wrong rate plan = the promised system's grid purchases and sales re-priced on the plan the customer was switched to ($0.158 to buy, $0.03 credit to sell). Shortfall = the further bill increase when production falls from 18,500 to 9,000 kWh. Dealer fee = $290 minus $240.

Your July bill, three ways

The same month, reconstructed line by line from the ledger: the bill before solar, the bill the proposal implied, and the bill this household actually receives. July is the peak cooling month and the largest gap of the year.

Before solarJuly, pre-install
Electricity used3,000 kWh
Rate$0.155 / kWh
Electricity charge$465.00
Solar loannone
Total for the month$465.00
What you were promisedJuly, 18,500 kWh system, one-for-one credit
Bought from grid1,446 kWh at $0.15 = $216.90
Sent to grid (credit)389 kWh at $0.15 = ($58.28)
Electricity charge$158.62
Solar loan$240.00
Total for the month$398.62
What you actually gotJuly, 9,000 kWh system, buy $0.158 / sell $0.03
Bought from grid2,150 kWh at $0.158 = $339.62
Sent to grid (credit)95 kWh at $0.03 = ($2.84)
Electricity charge$336.79
Solar loan (with dealer fee)$290.00
Total for the month$626.79

July delivered: $161.79 more than before solar and $228.17 more than the proposal implied. The twelve-month ledgers below carry every other month.

The three versions side by side

What you were promisedSame panels, wrong rate planWhat you actually got

The month-by-month numbers behind every chart

The complete monthly data each chart is drawn from. "Saved or (lost)" is your bill before solar minus what you pay now (bill plus loan); a number in parentheses is money lost.

Model inputs: 25,000 kWh/yr consumption on a Houston cooling-dominant monthly profile; production on a Houston solar (PV, photovoltaic) profile; 80% of production used inside the house as it is made ("self-consumption") in S1 and S2, 90% in S3 (a 9,000 kWh array rarely makes more than the house is using at that moment). S1: $0.15 import and export (1:1). S2: $0.17 import, $0.03 export. S3: $0.158 import, $0.03 export. Loan $240/mo (S1, S2), $290/mo (S3). All-in rates; no separate fixed charge. Projections hold rates flat and the loan fixed.

Texas legal grounding

How the "what you actually got" numbers map to the laws a Texas consumer attorney would plead. Written for the attorney; your copy of the report carries these pages so you do not have to explain the numbers twice.

What the report includes, and what we need from you

1. You send

  • 12 months of electric bills from before the install, and every bill since
  • Your utility account login, or a Green Button download, so we can pull hour-by-hour usage
  • A production history exported from your own monitoring account (we show you how)
  • The sales proposal, the signed contract, and the loan agreement
  • Any texts or emails where savings were promised

2. We do

  • Join your meter data to your inverter data, hour by hour, for every month since install
  • Rebuild your pre-solar baseline from your own bills, weather-adjusted
  • Price every kilowatt-hour on the plan you are actually on and on the plan you were promised
  • Pull the dealer fee out of the loan and cost it over the term
  • Separate the three causes so each can be pleaded on its own

3. You receive

  • This report, for your property, with your numbers
  • The twelve-month ledger as a spreadsheet, every formula live
  • A cost-difference summary (monthly, 5-year, 10-year, loan term) you can share with an attorney
  • A lender-ready summary for the Holder Rule claim
  • A plain-English one-page verdict you can forward to anyone
$450 flat, per property

$450 to document a $22,482 ten-year claim, and up to $67,446 if a court awards three times economic damages. Delivered within five business days of receiving your documents. If the data shows your system is performing as sold, the report says so; you will know either way.

Terms used in this report

kWh (kilowatt-hour): the unit of electricity on your bill. A 1,000-watt appliance running for one hour uses 1 kWh.
Baseline: what you paid for electricity before solar, from your own bills, for the same amount of power you use now.
Production: the electricity your panels generated, taken from the inverter's own records.
Inverter: the box that converts panel output to household power and keeps the production log.
Self-consumption: solar power used inside the house at the moment it is made, which never touches the grid.
Grid import: power you bought from the utility because the panels were not covering your use at that moment.
Grid export: solar power sent out to the utility because the house was not using it at that moment.
1:1 net metering: a plan that credits exported power at the same price you pay to import it.
Wrong rate plan (rate erosion): the money lost when the power you sell back is credited at a lower price than the power you buy.
Clipping: output lost when panels produce more than the inverter or a shared circuit can pass through.
Dealer fee: a financing charge the installer rolls into the loan principal, raising the payment without appearing as a line item.
Interval data / Green Button: the hour-by-hour (or 15-minute) usage record your utility keeps for your meter, downloadable in a standard format.
TDU (transmission and distribution utility): the company that owns the wires and meter in your area (Oncor or CenterPoint around Houston), separate from the retailer that bills you.
DTPA: the Texas Deceptive Trade Practices-Consumer Protection Act, the state law covering misrepresentation in consumer sales.
Economic damages: the dollar loss the law lets you recover; "three times" (treble) damages are available when the conduct was knowing.
Holder Rule: a federal rule that lets you raise the same claims against the lender that you have against the seller, when the seller arranged the loan.
The three versions: "What you were promised" is the proposal delivered as written; "Same panels, wrong rate plan" is the promised panels on the plan you were switched to; "What you actually got" is your real system, plan and loan.