Solar PV Free, zero carbon electricity from the sun Key features • P roduces renewable electricity directly from daylight • A 2kWp (peak output) system can provide approximately 50% of a typical domestic household’s annual electricity needs • S ignificantly reduces energy costs and building CO2 emissions • F uture proofs against inevitable future energy price increases • E asily meets planning requirements for minimum contribution from renewable energy • P rovides a carbon reduction solution for properties under the Code for Sustainable Homes and other building standards • F eed in Tariffs through the Clean Energy Cash back scheme provide income for every kWh produced • C omplete system packages including: • Polycrystalline modules (panels) • G83 approved inverter • Generation meter • Isolation switches (AC/DC) • Mounting solutions for a range of roof types • 1.44 – 4.7kW outputs • A vailable in custom format for larger installations • A ccessories available, including energy display meter • A vailable for Clean Energy Cashback tariffs • Available summer 2010
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Dimplex Solar PV uses free energy from the sun to produce electricity. Solar PV panels produce their energy from day light (rather than solar radiation) meaning they will still produce energy even on a cloudy day. The electricity produced is used directly in the building to power electricity consuming appliances or sold back to the grid if not needed. Solar PV is suitable for homes, businesses, schools or community buildings and with no moving parts provides one of the easiest and most reliable ways to future proof against rising energy costs and reduce CO2 emissions. From April 2010, the Government’s Clean Energy Cashback scheme will enable householders, businesses and
communities to receive fixed, guaranteed payments for 25 years for the low carbon, renewable solar electricity they produce. In very low energy buildings – for example the zero-carbon homes that will be required by 2016 – solar PV will provide an important element in the total energy saving solution, alongside heat pumps, solar hot water and heat recovery systems.
What Clean Energy Cashback means for a domestic household
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Domestic property without Solar PV
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7
5
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6 Mains Power Supply
Income from Solar PV: £0/yr Income from exported elec: £0yr Annual elec bill: £462/yr Total Elec Cost: £462/yr Total CO2 emissions: 1419kg/yr
1. Solar PV Collector Array 2. DC/AC Inverter 3. ACV Isolation Switch 4. Credit Meter 5. Consumer Unit 6. Electricity Meter 7. AC Power
Typical grid connected PV system • T he solar modules (panels) convert (1) daylight into DC electricity. • A DC to AC inverter (2) converts this into AC power, allowing it to be used to power appliances within the building • T he PV system is connected to the mains supply via a consumer unit (5) for safety purposes • T he voltage of the solar produced electricity is slightly higher than the power from the grid, meaning the free, renewable energy is used first when there is an electricity demand
Clean Energy Cashback From April 1st the Clean Energy Cashback scheme will provide householders, businesses and communities who install Solar PV systems to be paid a substantial premium for all of the solar electricity generated. Key points: • Up to 41.3p/kWh* per unit generated by a solar PV system • A n additional payment of 3p per unit exported to the grid • Payments guaranteed for 25 years • P ayments are index linked, so will increase with inflation
• T he solar PV system generates electricity whenever there is sufficient daylight. Any unused electricity is exported to the grid • A t times when there is an electricity demand but there is insufficient produced from the solar PV system, the demand gap is met by energy from the grid * Variable depending on system size. Rate reduces for new installations after April 2012
Domestic 10 panel / 2.1kWp PV system Income from Solar PV: £693/yr Income from exported elec: £25/yr Annual elec bill: £227/yr Total Elec Credit: £491/yr Total CO2 emissions: 697kg/yr Total Solar PV Benefit: £491 + £462 = £953/yr Total CO2 saving: 1419kg – 697kg = 722kgCO2/yr
Long term benefit: Installation cost
£10,000
Total system income over 25 years:
£23,800
Total profit over 25 years:
£13,800 11