Roof or ground: establish the constraints
For a roof, we assess covering condition, fixing approach, structural loading and access. For ground-mounted arrays, land use, shading, cabling, permissions and maintenance access need their own assessment.
Solar electricity · Cornwall & Devon
Solar PV installation.
Make generation work for your site.
We check what can fit on the roof or land, then compare when it would generate with when the site uses electricity. That helps estimate how much generation you could use on site.
Energetika provides independent solar photovoltaic (PV) advice, design and installation from Millbrook, Cornwall. We assess homes, commercial premises, farms and suitable land in Cornwall and Devon, considering the wider site as well as individual buildings. We confirm coverage from your postcode.
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Coverage is confirmed before arranging a visit.
- 01 / Site
Find the useful space
Roof condition, structure, orientation, shade and safe access determine what can be installed.
- 02 / Generation
Estimate the yield
A site-specific estimate considers the layout, local conditions, shading and system losses.
- 03 / Electricity use
Match supply and demand
Use electricity on site, store some for later or export the surplus, subject to the connection and tariff.
Annual generation is not the same as self-consumption. A sunny summer surplus cannot be assumed to supply winter heating.
The design comes first
A design with its assumptions in view.
Show the assumptions behind the output
Pitch, orientation, horizon and nearby trees or buildings affect generation. The proposal should state its yield method, losses and shading assumptions; an annual estimate is not a guarantee of output in every month.
Use generation when it is available
Bills and interval data help reveal daytime demand. EV charging, hot water and other flexible loads can improve use on site, but controls and seasonal demand matter. We distinguish generated energy from electricity bought less often.
Check DNO and export requirements
The distribution network operator (DNO) connection route, existing supply and any export limit affect the design. Export payments need an appropriate supplier arrangement; a connection agreement does not itself establish an export tariff.
From enquiry to operation
Know what happens next.
What you send
Send a postcode, your goals, recent electricity bills and details of existing equipment. Photos or plans are useful if available.
What we agree
We confirm coverage and discuss what needs investigation. Survey or design scope and any fees are agreed before proceeding.
What you review
Assess the layout, equipment, connection requirements, estimated performance and associated works before deciding.
What we hand over
The agreed work includes settings and operation. The proposal sets out documentation, warranties and ongoing support.
A coordinated system
Solar, storage and heating together.
A battery can move some solar generation into the evening. It has finite energy capacity and charging power, and winter generation may be small when heating demand is high.
Adding panels to an existing installation needs checks on the inverter, cabling, protection, metering and connection agreement. A larger array does not automatically mean a proportionately larger saving.
Explore battery storage →Warm Homes finance
Compare lender routes as well as rates. Confirm installer choice, full costs and funding before committing; finance through Energetika has not been confirmed.
Scheme guide & lender comparison → · Compare finance with cash →
Scheme outline and checks before committing
The government’s Warm Homes Loan Scheme offers eligible homeowners a way to spread the cost of improvements such as heat pumps, solar panels and battery storage through participating lenders. Products, interest rates and terms vary, and applications are subject to lender eligibility, credit and affordability checks.
Read the official scheme guidance and check the available products with a participating lender. We are preparing information about the scheme; finance through Energetika has not been confirmed.
Can you keep your chosen installer?
Check this before comparing headline rates. Lenders use different application routes: some require an approved installer or a particular proposal platform. MCS certification alone does not establish access to every lender. If independent installer choice is not clearly confirmed, ask the lender before committing to work.
Compare the full installation price and total loan repayments together, including fees, any security over your home, early repayment charges and when funds are released. A lower interest rate does not by itself establish a lower overall project cost. See the official participating lender list.
Scheme information checked 1 November 2026. This is not a finance offer or an eligibility decision.
Before you decide
Questions worth asking.
Do I need a battery with solar PV?
No. PV can supply on-site demand and export surplus without a battery. Storage is a separate decision based on demand timing, tariffs, losses and installed cost.
Can I put panels on an older roof?
The roof needs assessment first. Its condition, remaining life, structure and proposed fixings determine whether it is suitable or whether roof work should come first.
Will solar cover my winter heat-pump use?
It may contribute, but winter solar output and heat demand do not align reliably. A design must account for seasonal generation, the heat pump’s electricity demand and grid supply.
Based in Millbrook, Cornwall
Tell us about your roof or land.
Please include your postcode, roof or land details, electricity use and any existing solar, battery or planned EV or heat pump.
We confirm feasibility and scope before recommending equipment.
Enquire about solar pvEnergetika Ltd
Unit 12, Gallows Park
Millbrook, Cornwall, PL11 3AX
Unit 12, Gallows Park
Millbrook, Cornwall, PL11 3AX
01752 987 726
info@energetika.co.uk
Domestic, commercial and agricultural sites in Cornwall and Devon. Coverage is confirmed from your postcode.