Solar Products - Price Guide

Perpetual Energy designs, supplies, installs and maintains PV systems that generate renewable electricity from solar energy.  We have a range of solutions to suit most roof types e.g. membrane based systems for flat roofs.  Below is a list of budgetary prices to install an array of PV modules for your project.  

Contact us for details on how we can help progress your PV project.

 Summary

Guide property type
Assumed available area of PV modules and type of roof
Approx. power rating of array of modules
Estimated annual electrical output ±15%
Estimated installed cost of PV system ±15%
Primary school
30 m2
(sloping roof)
 4 kWp    
 3 MWh p.a.  
 £14,000
Medium sized office block
 200 m2
(flat roof)
 27 kWp    
 20 MWh p.a.
 £81,000
Garage/filling station
Small warehouse
 400 m2
(flat roof)
  53 kWp   
 40 MWh p.a.   
 £154,000
Superstore
Distribution centre
  2000 m2
(flat roof)
 270 kWp  
  200 MWh p.a.   
 £702,000

*All guide properties are assumed to have sufficient roof structure to support the added weight of PV development.  Outputs are estimated assuming that roofs are free of localised shading, sloping roofs are facing between south west and south east & the value for average solar irradiance is a constant value throughout the UK.  Estimated installed costs are guide prices and do not constitute a firm offer.
*Installed cost includes:
  • Mechanical hardware – mounting structure for panels
  • Electrical hardware – modules, inverters & grid connections
  • Labour – installation and commissioningStandard concrete pad foundation in accordance with manufacturers design
*Excludes:
  • Site modifications & delivery ex works – access, structural surveys etc
  • Permitting costs (planning, etc)
  •  Additional design costs, cabling & electrical connections
  •  Communication costs if applicable

 Table of proposed PV generation tariffs for first year of FITs (2010-2011):

Technology
Scale
Proposed Initial Tariff (p/kWh)
Annual Degression (%)
PV
<4kW (new build)
31
7
PV
<4kW (retrofit)
36.5
7
PV
4-10kW
31
7
PV
10-100kW
28
7
PV
100-5MW
26
7
PV
Stand alone system
26
7

Source: department of Energy and Climate Change
 
Transitional arrangements:
Pre 15 July 2009 - all sub50kW units registered under RO will be transferred to FIT (9p/kWH).
All sub50kW units not registering under the RO as of 15 July 2009 will NOT be eligible for FITs.
Post 15 July 2009 but pre FIT implementation date - all units will be eligible for FIT tariff as if they were installed post FIT implementation. No retrospective reward for the interim period will be delivered over and above the 2ROCs currently available.
LCBP grants and other grant will NOT effect FIT eligibility.
       
 
<50kW
50kW-FIT Max
>FIT Max
Installations accredited under the RO before publication of the RES
Automatic transfer to FITs
Remain in the RO
Remain in the RO
Installations completed during the interim period
FITs from introduction
One-off choice of FITs or RO
Remain in the RO
Installation completed after FITs become operational
FITs
One-off choice of FITs or RO
Remain in the RO
 
Key
Stations that apply for accreditation under the RO during the interim period would be automatically transferred to FITs with a reduction in the lifetime of support.
Choice only possible until December 2010. Unless FIT option is explicitly taken generator will remain in the RO.
Source: department of Energy and Climate Change.