Available Solar Technologies - Susannah Wood (Solarcentury)

Solarcentury

Company Highlights
A building integrated solar market leader – a downstream business
Unique & Strong in-house R&D & IP , 4% revenue invested
+40% annual growth business driven by own product innovation
Offices in UK, France, Spain and Italy; 115 employees
Manufacturing partnership with Sony UK and Jiawei, China
Strong supply chain underpinned by relationships with leading global suppliers

The PV project stages Engineering PV Mounting Inverter Installation Development EPC O&M Planning Grid permission FiT provider Finance Operation Maintenance Measurement 1 2 3

Narrowing choices
Objectives: return (how much), CSR, planning, brand, energy security
Risk appetite and financial structure: who is going to own the system?
Capex and access to debt
Opportunity: - land - roofs - new roofs
Location: availability of irradiance
Yield vs Size of system
Timing
Hassle factor!

Bari, Italy - 1MW ground mounted

Hutton Mews, Putney

PV Monocrystalline (8m 2 /kWp) (7m 2 /kWp) Polycrystalline Hybrid (6m 2 /kWp ) Amorphous (15-20m 2 /kWp) Cloudy conditions V.large surface areas Small surface areas Good yield Large surface areas Good yield Small surface areas V.good yield

Monocrystalline (7m 2 /kWp) Small surface areas Good yield

Hybrid (6m 2 /kWp ) Small surface areas V.good yield

Amorphous (15-20m 2 /kWp) V.large surface areas

(8m 2 /kWp) Polycrystalline Large surface areas Good yield

Mounting structures
On roof – suitable for high quality roofs, structurally sound that will last for 25 years
PV is the roof – suitable for replacing poor quality roofs, for high wind loadings, to max out the roof and ideal for new build
Certification is tightening up

PV is the roof

Skylights and vents Comes with skylights and/or roof vents

Gutters Gutter brackets fixed to angle-section at 40cm centres. Angle-section fixed to underside of MSR.

MP sheets MP Sheet provides protection to the junction box and cabling at the rear of PV module from chemical environments (gases, vapours etc.) or physical protection from activities within the building

Integrated insulation
T-Profile support rail
Locking bracket
Insulated panel with Kraft aluminium vapour barrier (80mm – R d 2.25)
not shown – additional 100mm of insulation on top to give R d 3.65
The insulated panels are installed between the I -beams (purlins) of the roof structure : Purlin Density = 3.5 kg/m ²

Design and installation
MCS
Track record
Price considerations…
… and yield potential expressed as Performance Ratio
The effectiveness of the PV system (i.e. how well it is designed and installed) is the ratio between the AC kWh energy delivered compared to the DC kWh potential.

PV SYSTEM Modules Inverters Stringing PERFORMANCE RATIO THE measure of PV system effectiveness Available radiation at array: SHADING ORIENTATION INCLINATION YEAR to YEAR variation AC kWh SITE & WEATHER CONSTRAINED

Financing options Farmer Developer EPC Investor Utility Farmer Developer EPC O&M O&M Investor owns system £ £££ £££ Farmer owns system

Next steps
Ground mount? Developer partner: Savills
Suitable roof? Please speak to myself or Oliver Sylvester Bradley
[email_address]
[email_address]

Thank you

Available Solar Technologies - Susannah Wood (Solarcentury)

by Farming Futures on Oct 15, 2010

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