The Deep Dive is the full report behind a calculation you've saved. It's a one-off £9.99 unlock for that calculation — no subscription.
What's in it
- Your roof, drawn — your roof on aerial imagery with a panel layout that keeps a 0.4 m edge clearance, or a labelled diagram if you entered your roof by hand or no imagery is available.
- Month by month — what your panels generate each month, how much your home uses directly, and where every kWh of surplus goes: battery, car, hot water, heating or export.
- The full off-peak range — heat pump and air-to-air running costs at every scheduling level side by side, not just the one you picked, so you can see exactly where each starts to beat gas.
- Heating vs solar through the year — the seasonal mismatch, month by month.
- 25-year cash flow — year by year, including battery and inverter replacements at today's prices, and the year your investment turns positive.
- A PDF of the whole report to keep or share with an installer.
Buying a Deep Dive also lifts the free limit of three saved calculations on your account.
What the free calculator already gives you
The ranked options, each module's year-one savings, grant eligibility, where your surplus goes over a year, and the off-peak share at which a heat pump beats gas — enough to decide whether it's worth going further.
How to get it
- Run the free calculator for your home.
- Sign in and save the result.
- From the results page or your saved calculations, choose Get the Deep Dive Report and pay securely with Stripe.
Your report unlocks as soon as the payment is confirmed, and stays available whenever you sign in.