Qualify your building
Commercial building with rooftop solar at sunset
FOR COMMERCIAL PROPERTY OWNERS

Store your summer sun
for heating all year.

Seasonal heat storage for commercial buildings. We store your summer solar surplus as heat in the bedrock below, and give it back as heating and cooling all year round, for up to 75% lower cost.

See what your building would save FREE · NO COMMITMENT
THE PROBLEM

Your building gives energy away in summer, then buys it back at winter prices.

The energy you need already lands on your roof. It just lands six months too early.

SUMMER · JULY
Too much sun.

Your roof makes far more power than the building can use, and the surplus goes to the grid for next to nothing.

MOST OF IT GOES TO WASTE
WINTER · FEBRUARY
Too expensive heat.

Heating is your biggest energy cost, and you pay peak prices for it exactly when the panels give you nothing.

PAID AT WINTER PEAK PRICES
HOW IT WORKS

The rock under your property becomes a battery for heat.

Solar panels, a heat pump, boreholes. The parts are ordinary. The pipe we put down the hole is not, and it charges the rock about ten times faster than anything before it.

  1. 01

    We catch the surplus

    The power your roof makes and the building can't use becomes heat, instead of grid exports worth next to nothing.

  2. 02

    We charge the bedrock

    That heat goes into sealed boreholes on your own plot, under a lawn or a car park. Nothing is visible above ground.

  3. 03

    The rock holds it until winter

    No moving parts, nothing that wears out. Around 80% of the heat is still there six months later.

  4. 04

    You heat all winter, and cool all summer

    A heat pump draws it back up on a fraction of the electricity an air heat pump needs in February. The same field cools the building in summer.

Read the full explanation →
WHAT YOU GET

A cheaper building, and a more valuable one.

50-75%
lower heating and cooling cost
Locked to a predictable, index-linked price.
+20%
asset value
Lower running costs lift net operating income, and with it the valuation.
5 yrs
payback
Then it keeps paying for 20+ years more.
4×
more solar pays off
The midday peaks finally have somewhere to go.
WHERE IT PAYS OFF

Any building with a big heating bill.

Commercial property with a large, year-round heat demand. It is the size of the heating bill that decides the case, not the square metres.

Logistics & warehouses
Offices & business parks
Retail & shopping centres
Large residential
The strongest fits have:
  • ✓
    A large, year-round heat demand.

    Heating, cooling and hot water that never really stop. The bigger the bill, the stronger the case.

  • ✓
    Solar that no longer pays for itself.

    Midday power now earns close to nothing. We give that surplus somewhere to go, which is what makes the roof worth it again. No panels at all? Cheap grid hours can charge the store instead.

  • ✓
    Open ground on the plot.

    A lawn, a car park or a courtyard is enough. Nothing shows above the surface afterwards.

“
Re:notch enables strong property value uplift from lower, predictable energy costs and increased solar margins.
Chairman, Nordic real estate group
€200M+ commercial property portfolio
FIELD-MEASURED AND VALIDATED WITH
KTH Royal Institute of Technology Lund University (LTH) RISE Research Institutes of Sweden Vinnova, Sweden's Innovation Agency
GOOD QUESTIONS

The questions owners ask us first.

Anything missing? Write to erik@renotch.com.

What does the Re:notch system do?+
It stores the solar surplus your building can't use in summer in the bedrock below, and delivers it back as heating in winter. One system covers heating, cooling and hot water all year round, at one predictable price.
How much does it cost?+
The upfront cost is on par with a conventional borehole thermal storage (BTES) plant. Under our co-invest model we fund it together, and it typically repays itself within five years through the savings it creates - and often right away, since the resulting uplift in property value can cover the investment on its own. Your free assessment gives you the exact figures for your building.
How much can we save?+
You typically pay 50 to 75% less on your heating and cooling bill from day one, and keep it for the next 25+ years at a predictable, index-linked price, protected against volatile electricity markets. Those lower, predictable costs also strengthen NOI, which lifts the property's value, often by enough to cover the entire investment.
Do we need to change our heating system?+
No. The system delivers heat at temperatures your existing radiators are built for. It can also replace a gas boiler or complement district heating. Your building keeps working the way it does today, only cheaper.
Where do the boreholes go?+
For new builds, directly under the building, drilled before the foundation is poured. For existing buildings, almost any open area on the property works: a lawn, a parking lot, a courtyard. The ground is restored afterwards and nothing is visible above the surface.
See all 18 questions →
FOR PROPERTY OWNERS

See the numbers for your own building.

Send us the address and your energy bills. We come back with your savings, your payback, and whether the ground under you works. Free, and no commitment.

Get a free site assessment
or write to erik@renotch.com