Free Commercial Solar PV - Typical funding scheme returns

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Helping businesses benefit from solar energy to reduce electricity costs.
For Free.


Exergy Ltd in partnership with REI (Renewable Energy Investments)


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Power Purchase Agreement (PPA)

  • No capital investment required
  • Fully funded solar PV system for your building
  • Enjoy reduced electricity bills for 20 years
  • Free monitoring, maintenance and insurance of the PV system
  • After 20 years, ownership of the system is transferred to you

REI funds the entire installation of a solar PV system and you receive heavily discounted solar PV electricity. After 20 years, ownership of the system transfers to you and you enjoy 100% free solar electricity for the remaining lifetime of the system (c.15 years).

Bottom line savings

A typical installation will deliver our clients savings on their electricity bill of £2,325 in year 1 and £112,000 over 20 years*

*Based on a 50kWp system, 85% on-site usage, 11.6p/kWh electricity tariff, 5.7p/kWh solar PPA tariff, 2.5% RPI and 6.6% for electricity price inflation.

Do nothing versus Solar Power graph

Forward Power Purchase Agreement (FPPA)

REI funds the entire installation Investment return forecast of a solar PV system and you invest a fixed sum to receive 100% free solar PV electricity for the lifetime of the system (c. 35 years).

Return on investment

A typical installation with an investment of £18,630 is estimated to deliver a return on investment of £146,000 after 20 years, with a payback of just over 3 years*.

Using the above example the equivalent unit cost of solar electricity would be 2.5p.

*Based on 50kWp system, 85% on-site usage, 11.6p/kWh electricity tariff and 6.6% for electricity price inflation.

Forward Power Purchase Agreement graph

Keeping the process simple, transparent and hassle-free

    1. Exergy assess the potential of your roof and gather data regarding your current electricity usage and pricing.

    2. We propose two options:

    • PPA - bringing you instant savings to your electricity bill
    • FPPA - your capital investment will deliver free solar PV electricity for the lifetime of the system

    3. You agree to lease the airspace above your roof to us

    4. Exergy install the solar PV system

    5. You enjoy reduced electricity bills for 20 years with no maintenance costs and no worry about the operation of the system

    6. After 20 years, ownership of the system transfers to you to enjoy free solar PV electricity for the remainder of the system life - c. another 15 years

Keeping the process simple, transparent and hassle-free graph

CONTACT: Sreenivaasa Pamidi e-mail: spamidi@exergy.uk.com